NATIONAL BUREAU OT STANDARDS REPORT

PROGRESS REPORT

ON

BONDING TO TREATED CONCRETE SURFACES

by

Winthrop C. Wolfe

U. S. DEPARTMENT OF COMMERCE

NATIONAL BUREAU OF STANDARDS

7492

Approved for public release by the

Director of the National Institute of

Standards and Technology (NIST) on October 9, 2015.
THE NATIONAL BUREAU OF STANDARDS

Functions and Activities

The functions of the National Bureau of Standards are set forth in the Act of Congress, March 3, 1901, as amended by Congress in Public Law 619, 1950. These include the development and maintenance of the national standards of measurement and the provision of means and methods for making measurements consistent

with these standards; the determination of physical constants and properties of materials; the development of methods and instruments for testing materials, devices, and structures; advisory services to government agencies on scientific and technical problems; invention and development of devices to serve special needs of the Government; and the development of standard practices, codes, and specifications. The work includes basic

and applied research, development, engineering, instrumentation, testing, evaluation, calibration services,

and various consultation and information services. Research projects are also performed for other government

agencies when the work relates to and supplements the basic program of the Bureau or when the Bureau’s

unique competence is required. The scope of activities is suggested by the listing of divisions and sections on the inside of the back cover.

Publications

The results of the Bureau’s research are published either in the Bureau’s own series of publications or

in the journals of professional and scientific societies. The Bureau itself publishes three periodicals avail- able from the Government Printing Office: The Journal of Research, published in four separate sections,

presents complete scientific and technical papers; the Technical News Bulletin presents summary and pre- liminary reports on work in progress; and Basic Radio Propagation Predictions provides data for determining

the best frequencies to use for radio communications throughout the world. There are also five series of nonperiodical publications: Monographs, Applied Mathematics Series, Handbooks, Miscellaneous Publications,

and Technical Notes. A complete listing of the Bureau’s publications can be found in National Bureau of Standards Circular

460, Publications of the National Bureau of Standards, 1901 to June 1947 ($1.25), and the Supplement to National Bureau of Standards Circular 460, July 1947 to June 1957 ($1.50), and Miscellaneous Publication 240,

July 1957 to June 1960 (Includes Titles of Papers Published in Outside Journals 1950 to 1959) ($2.25); avail- able from the Superintendent of Documents, Government Printing Office, Washington 25, D. C.
NATIONAL BUREAU OF STANDARDS REPORT

NBS PROJECT NBS REPORT

1000-20-10401 25 April 1962 7492

PROGRESS REPORT

ON

BONDING TO TREATED CONCRETE SURFACES

by

A

Winthrop C c Wolfe

Organic Building Materials Section

Building Research Division

Sponsored by

Office of the Chief of Engineers

Department of the Air Force

Bureau of Yards and Docks

IMPORTANT NOTICE

NATIONAL BUREAU OF STANDARDS REPORTS are usually preliminary or progress accounting documents

intended for use within the Government. Before material in the reports is formally published it is subjected

to additional evaluation and review. For this reason, the publication, reprinting, reproduction, or open-literature

listing of this Report, either in whole or in part, Is not authorized unless permission is obtained in writing from

the Office of the Director, National Bureau of Standards, Washington 25, D. C. Such permission is not needed,

however, by the Government agency for which the Report has been specifically prepared if that agency wishes

to reproduce additional copies for its own use. <NBS>

U. S. DEPARTMENT OF COMMERCE

NATIONAL BUREAU OF STANDARDS

PROGRESS REPORT

ON

BONDING TO TREATED CONCRETE SURFACES

1. INTRODUCTION

Concrete floors have been treated with chemical "hardeners" for many years. Certain

other treatments are a result of changes in practice in the trade. The most

important of these changes is the substitution of membrane curing for the so-called

"water cure" for concrete. Another kind of treatment of concrete is essential to a comparatively new type of construction known as lift-slab or tilt-slab.

Proper curing is required for a concrete slab to develop maximum strength and a desirable surface. A concrete floor or wall should be smooth, hard, and free from

cracks or "dusting". If the surface is to be painted or covered with resilient

floor covering, it is essential that paints or adhesives for floor coverings adhere

to it. If a concrete floor has been allowed to dry from the surface before it has

been properly cured, cracks are likely to develop and the surface may become

"dusty". This will interfere with the application of paint or adhesives. Sometimes the surface of improperly cured concrete is improved by applying chemical

"hardeners". These "hardeners" generally consist of water solutions of magnesium

or zinc fluosilicate, sodium silicate, aluminum sulfate, or zinc sulfate. However,

a properly finished and cured concrete slab made from the proper mix will have a satisfactory surface and the use of such "hardeners" will not be necessary.

The standard procedure for curing concrete has been the "water cure" and is simply

to supply water for curing from the outside. This may be done by sprinkling,

applying wet burlap, etc., or by "ponding". However, these procedures delay con- struction and require expensive labor. Also, it is desirable to conserve water,

especially in arid sections. There is enough water already present in the concrete

mix to effect curing by hydration of the cement; hense, present day construction

practice is to seal in this water.

Water may be sealed in by means of waterproof paper, polyethylene film, or some other kind of waterproof sheet material. Another method which is growing in

popularity is the "membrane curing" procedure, whereby a waterproof coating is

applied to the moist concrete. This practice has been known for over twenty years

and a number of commercial membrane curing agents are available.

In addition to chemical "hardening" and membrane curing, a concrete treatment of

interest in this study is one essential to lift-slab and tilt-slab construction.

This type of construction was devised about twelve years ago to save the expense

of concrete forms. In lift-slab construction, upright steel I-beams are first

set in footings about 30 or U0 feet apart. Special steel "collars" are placed

around these steel columns to support the concrete slabs. The ground slab is

poured in the normal manner and a liquid preparation is spread on the "green"

concrete. This preparation acts as a membrane curing agent and also as a "parting

agent" or "bond breaker" » After the ground slab has cured a sufficient length of

- 2 -

time, another slab is poured directly over it to serve as the second floor. This

second slab is treated in the same manner as the ground slab if other slabs are

to be poured over it. In this manner, a multiple sandwich structure of as many

as ten or more slabs is built up. Hydraulic lifting apparatus is connected to

the steel "collars" in the top slab and it is slowly lifted into position to form

the roof. The parting agent enables the separation of the top slab from the one beneath it. After lifting the slab into place, the steel collars are welded to

the columns. The floor slabs are likewise lifted and welded in place. In tiltslab construction, concrete slabs for walls are poured on the ground and then

lifted in place. Parting agents are used to separate these from the ground slab. -

2. COMPATIBILITY OF TREATED CONCRETE SURFACES WITH RESILIENT FLOOR COVERINGS

The Asphalt and Vinyl Asbestos Tile Institute has expressed the opinion that failures

in resilient flooring installations on concrete floors have been traced to membrane

curing agents used on the floors. The Institute Technical Research Committee met

with the Portland Cement Association in January 1961 to discuss the following

problems encountered with resilient tile on concrete floors that had been treated

with curing agents; adherence, oozing, softening of tile, and cupping of rubber

tile. There have also been reports suggesting problems with resilient flooring

which might be due to parting agents. Parting agents are compositions similar to

certain types of curing agents and some preparations are advertised for both purposes. It should be realized that it is impossible to base conclusions solely on field observations. Field inspections should be backed up by laboratory research.

For example, a 4-story building in Rockville was constructed a little over a year

ago by the lift-slab procedure. Thompson’s Water Seal was used as the parting agent

on the concrete slabs. About six months after the slabs were lifted, vinyl asbestos

tile was laid in most of the building. Most of the tile was laid using asphalt

emulsion adhesive, but some was put down with an asphalt cut-back type mastic. A

few months after the tile was laid, asphalt mastic started to ooze through the seams. Some of the tile was removed and it was observed that the adhesive was soft underneath. Most of the adhesive was scraped off and new tile installed without using

any more mastic. A few months later, mastic started to ooze between the seams of

the new tile. Again the tile was removed, the wet mastic scraped off and new tile

installed. A few months later, mastic was still oozing between the seams of the

tile. It is known in the industry that certain "hot" plasticizers in vinyl asbestos

tile will cause softening and oozing of the mastic. Also, the oozing might be due

to the parting agent, Thompson’s Water Seal. This is a subject for laboratory

investigation.

On the other hand, a number of buildings were inspected which were known to have

concrete floors treated with a product known as "West Concrete Floor Treatment"

,

manufactured by West Chemical Products, Inc. Resilient tile laid on such treated

floors appeared to be in perfect condition after periods of from one to three years.

The particular product used was said to be a solution of chlorinated rubber in

xylene.

- 3

-

3. COMMERCIAL CURING AND PARTING AGENTS

Table 1 is a list of manufacturers of curing And parting agents. Part of the list was obtained from Sweet’s Architectural Catalog File for 1962 and part from a recent survey disclosed in a letter to Mr. Thomas H. Boone of the Bureau from

Mr. C. B. Whittelsey, Jr., Managing Director, Asphalt and Vinyl Asbestos Tile Institute. Table 2 is a list of commercial curing and parting agents, compiled from the

above sources, from manufacturers’ sales literature and technical data and from

representatives of the manufacturers. It cannot be too strongly emphasized that

these tables are based solely on information from the manufacturers and that the

National Bureau of Standards is not responsible for any errors or misinformation

contained therein.

TABLE 1 . MANUFACTURERS OF CURING AND PARTING AGENTS

(Materials are curing agents unless otherwise specified)

The Aquabar Company

Commercial Trust Building

Philadelphia 2, Pennsylvania

Brown & Brown

P. 0. Drawer 269

Mobile, Alabama

Calbar, Incorporated

2626 N. Martha Street

Philadelphia 25, Pennsylvania

Ceresit Corporation

3227 S» Shields Avenue

Chicago 16, Illinois

AQUABAR DURO-SEAL CONCRETE FLOOR

TREATMENT

A-500

CRETE-SEAL

CEROSEAL, COLOCURE, INDURITE, LETS GO

(parting agent), SURESEAL

Chemex Industries, Inc. CLEAR-TREET

P. 0. Box 5072

Tampa, Florida

Concrete Service Company C-H-S FLOOR TREATMENT, CURE-SEAL

2134 Cherry Street

Philadelphia 3, Pennsylvania

Creto Company of America, Inc.

Il6l3 South Western Avenue

Los Angeles 47, California

CRETO

- 4 -

Dewey & Almy Chemical Division

W. R. Grace & Company

62 Whittemore Avenue

Cambridge 40, Massachusetts

DARAFILM

The Euclid Chemical Company

19218 Redwood Road

Cleveland 10, Ohio

EUCO FLOOR COAT, EUCO KUREZ

Guardian Chemical Company

708 Jefferson Street, N.W.

Atlanta 1, Georgia

Representative

:

Thomas E. Turner

9218 Fisk Road

Richmond 29, Virginia

CLEAR BOND

A. C„ Horn Companies

Sun Chemical Corporation

Building Materials Division East

2133 85th Street

North Bergen, New Jersey

Washington representative:

Mr. Lee Groff

JE4-3626

HORN CLEAR SEAL, HORN CURE CONCRETE

CURING COMPOUNDS

Hunt Process Company, Inc.

7012 Stanford Avenue

Los Angeles 1, California

HUNT PROCESS 112-TU

Imperial Chemical Company

1460 W. Hubbard Street

Chicago 22, Illinois

LIFT-A-PART (parting agent)

Johnson-March Corporation

3018 Market Street

Philadelphia 4, Pennsylvania

RITECURE CLEAR, RITECURE SPECIAL

RITECURE WP

Kedmont Waterproofing Company

53 W. Jackson Boulevard

Chicago 4, Illinois

PRESERVA-KURE-SEAL

- 5

-

Lambert Corporation

P. 0. Box 151

Houston, Texas

LAMBCO CONCRETE CURE No. 64

RESIN BASE CONCRETE CURE No. 64RB

WHITE PIGMENTED CURE No. 64W

BITUMINOUS BLACK CURE No. 64B

NO -BOND CURE No. 64NB

(Curing and parting agent)

The Master Builders Co. , Division of

American-Marietta Company

2490 Lee Boulevard

Cleveland 18, Ohip

Representative

:

Mr. W. E. Teuscher

6229 N. Charles Street

Baltimore 12, Maryland

DRexel 7-7400

MASTERKURE

McMillan Products Division

The Hausman Steel Company

2411 Vinewood Avenue

Detroit l6, Michigan

DEMIC0N CURE-HARD

W. R. Meadows, Incorporated

2 - 18 Kemball Street

Elgin, Illinois

SEALTIGHT V-l6?-30, SEALTIGHT

GILS0NITE BLACK ASPHALT, SEALTIGHT

CURE-HARD

Permiteco, Incorporated

1110 E. Monument Avenue

Dayton 2, Ohio

PERMITE V160

The Peters Company, Div.

,

Toledo Paint & Chemical Company

33 Blucher Street

Toledo 1, Ohio

CURE-CRETE No. 200

Philadelphia Quartz Company

Public Ledger Building

Philadelphia 6, Pennsylvania

"0" SODIUM SILICATE

Presstite Division

American-Marietta Company

St. Louis 10, Missouri

Write to:

600 Lairport Street

El Segundo, California

TECHK0TE ANTI -BOND 200

- 6 -

Reardon Industries, Inc.

2837 Stanton Avenue

Cincinnati 6, Ohio

DUS CURE, SURE-CURE

Sika Chemical Corporation

35 Gregory Avenue

Passaic, New Jersey

Tidewater District Office,

Mr. Douglas Fox, District Manager

1221 Leadenhall Street

Baltimore, Maryland

SAratoga 7-3932

ANTISOL, SIKA HARDENER

Sonneborn Chemical and Refining Corp,

300 Park Avenue South

New York 10, New York

Building Products Division

Washington representative:

Mr. S. B. Rosenfeid

4953 St. Elmo Avenue

Washington, D. C.

0L2-2022, TA9-5045

HYDROCIDE CURING COMPOUND RESIN X

KURE-N-SEAL

E. A. Thompson Company, Inc.

(formerly By-Chemical Products Co.)

Western Merchandise Mart

San Francisco 3? California

THOMPSON’S WATER SEAL

Toch Bros. , Inc.

521 Fifth Avenue

New York 17, New York

Washington representative:

Mr. Tillson

4953 St. Elmo Avenue

Washington 14, D. C.

652-4141

RIW CURETOX LIQUID, FLINTOX LIQUID,

SEALKURE, TOXKURE

The Tremco Manufacturing Company

10701 Shaker Boulevard

Cleveland 4, Ohio

Tretol, Inc., Division of

Servicised Products Corporation

7252 West 66th Street

Chicago 38, Illinois

TREMCRETE

DEKOTE T130

- 7

-

Truscon Laboratories

Industrial Maintenance Division

Devoe & Raynolds Company, Inc.

1700 Caniff Street

Detroit 11, Michigan

P. 0. Box 9263, Rosslyn Station

Arlington 9> Virginia

Sales representative;

Frank J. Hasse

RE7-2374

AGATEX, TRU-SEAL, TRU-CURE

The Upco Company

4801-17 Lexington Avenue

Cleveland 3? Ohio

Manufacturer’s agent:

A. Albert Pack, Jr.

14800 Maydale Court

Silver Spring, Maryland

EVergreen 4-9474

CURECOTE (CURECOAT), POLYCLEAR,

UPCO PARAFILM

Wall Products, Inc.

6 Honiss Street

Belleville 7» New Jersey

(See Tretol, Inc., parent company)

KLEARCURE ^plO and ^30

West Chemical Products, Inc.

42-16 West Street

Long Island City 1, New York

Washington representative:

Don E. Killgore

412 Fifth Street, N.W.

NA8-1820

WEST CONCRETE FLOOR TREATMENT

WESTCURE

WEST BOND BREAKER (Parting agent)

George W. Whiteside Company

31st and Michigan Drive

Louisville 12, Kentucky

AQUASTATI C CONCRETE CURING COMPOUND

CURING

AND

PARTING

AGENTS,

6

April

1962

8

J3 O

4J O d to •H 5 3 X) 5 p 0 O -u as 4-1 O d as 0 > O

03 O CO CO CO 3 to a to CO CO to CO CO CO to Q d

t—4 r—

•

<D d 03 03 o' as as a; a; as a 03 <3; 03 as 0 cj JD tD 4-3 >* as > P-, >< >-> >* >4 5 4J 4-3 Sh £h as 3

•r4 ctl 0 * 1-0 i^-t 0 d d £4 O CO T““l 4J M fi tO JD d M d 03 JD

ns 50 0 as ns 50 50 as ns Q, 03 d JD JD e 03 0) JD d JD a U •o 0 S3 *U 4J 0 0 d 3 tfl M

co d 4J w U

CO £ £

•rlCO 6 •3

*rl

CO to Pj

4J O 0 •rl O & 0 0 •rl •rf s

d

•rl d 11

Q 4a 5

a

CO

03

CO

03 1d

Q Q

CO

a;

to

as Ph £3 0 £3 £3 CD >4 >4

xs

o> r4

4-1

•r-4 o

0) C£

030) to

-r-4

13

asa

OSu

as

os

to

ns PD

u

0) d

OS xiu

ns m

jd

i-i OS 0) 4-S JD

ttf JD O 3

•i-i eJ

OS

to as OD n3 PD

OS

to

cs> pd

n3 co to

as$ H X £

co d

QJ ^ o

X!

CO

03

erfo

•rl

asto

rt eaX

ns DE

£4

as as

to e

cti as pd -au

U ns

as jd

as JDJD3 4-1 Pi tfl

X) i-4 as *—

t

4J *rj ns to

03 1 g

rj PQ 4J CQ rj i~4 ta d 4J n) CQ d

rC 3 M 03 £4 3 •rl 03 •rl e

4J 0 O 0 as d d d c as O d d d rd d d u d O d d C JD •rl •H 4J •H c JD d •^I 4J 4J •t-i •rl 0 •rl

J<! J2 JX JD CO X d CO JD 0 to d d to CO H XJ

CO d d d 3 03 O 03 d 3 d as 0 X as 03 xt O

CO

03 r—

5

£3 £3 £3 Cd Crf CO C/D & £D Pi es 0 CQ ea Ctf 0 CQ

d

d

CO ©

4-> 0

d d

0) 0 « M

50 O a 9 d a © d >

to « O M d 0 •W

50 U as 03 d O O d 0 O O

d 0) •i-4 p* d 0 O * 0 u

J-4 u W t8 CO *r4 c CO u d 0 0 &, CO 4-3 0) d 03 4J m ?-> ns 03 4*3 d 4J 4J U B 03 c^3 O 0 •t' d g d a* O O

a O a) O 4J s- ns S *rr4 d d w t-0 u •H O > § w 0 a. 0 > X

50 *4-1 5 0 cS pd P- U 03 CO Pj 44 « B O J-) &

•> 0 0

d d 0 JD 0 u U as jd 3 £4 0 0 0 03 M

O N

•w d S-) ns •H nS O CO 0 x< O d O to CQ d

a jg PD tJ 0 JD © a a 0 • w £4 < M

M S as n) CP a H 0 0 as 03 d

O <3 d JD 3 4J 4J as 4J 0 O 4J U <*s d C-M 0 U O' 03 as •t-S u a. as 03 rl r-4

1 C 0 <s 50 CO u x< as as 0 d £D ££4 S>N O r—

1

03 3 to «s ^4 03 0 £4 6 as 4J O as 4J H

d O 3 4<5 as O M d n) as £j as i-i as as d & 03 s; d M M i-» JD 03 03 0 3 as £j d fig 0 as 3-i u M PD H OT H O O u O 0 O O a 0 a H a

DURO-SEAL

(AQUABAR

DURG-SEAL)

DUSCURE

Reardon

Industries,

Inc.

Powder

Must

be

swept

off

EUCO

FLOOR

COAT

The

Euclid

Chemical

Co.

Chlorinated

rubber.

Chlorinated

resins,

and

plasticizers

Unknown

Yes

EUCO

FLOOR

HARDENER

CRYSTALS

43us

<D r4

X)

cn

01e

*44)>

ou

oo

Uj

CO 44c

•rlcd FU

CO

CD >*

o o

125 S3

0) CD

9 -

CA00c

43 44 T3 eo <3 CO -a

CD co 44 X> 3) O a> CO CO CO CD > <d 44 CD U CO C0 O > <0 a> co CD > o 4J O > 43 <D CD •r-l 44 44 (D 44 2

00 0 *4 cd Q >• 44 CO td <d >* td 0 fl

a> o <d U *4 0 44 r4 a) u u *4 <D •rl o a 00 «d <D 44 d cd 43 00 00 00 M 43

»—< *H O o <d <D U -rl s 43 T3 (D CD CD CO

a) <44 43 P p 44 > 4J o O- <d 44 44 44 CD cd 43 a d <D to $ %

co d d d 43

>» cd *1-1 44 43 td »4 •»4 •.4 i4

4J 43 0 (0 CO 43 c o o CO CO CO 44

CO •rl D d 44 d *t4 •rl *rl CO 43 2 Q S O -r4 CO o Q Q co Q 3 P S d <D <D S P >4

TJ CD

CD CL) * n CO

el

CD co 44 d cd

CO cd d •rl 03

cd P3 CD CO H CD CQ EL CD 44 d

M (J Eo il fl t4

It Tl t( 0) OT » Tl # O. - 0 CO)

>M <U X 00 3 Pd P U-l U <U 0) i-l O

•rl P i iJ 3 (X C ^ US M >< -rt .MO

« p « x! Co Dj ft 3 5 O r-l

CD

CO

cd <D U CQ 44 c ai td

d) (A d *4 a

B P •rl CD •rl 60 CO CO d H

i-l CD <D •rl a. a Pi X) CO

•rl M O

r 01 xJ cd d c <u CD 43 r*4 CD

1-1 o£ N 44 co

01 •rl H cd # D d U cd d CQ

Od C 3 •rl a M

P 0 44 *H d

i P CO 0 + •H H X -M cd CD CO P P P 5 3 P> H

(X. 61?

<D Pi

<D i d

CO d 5

td cd o

P3 oo (3

t-4 U O CD d

<D CO p

43 X3 Cd T3

43 d cq a i •d <D d cd cd d CO pi 44 d CD cd cd •CD d •rl « CO CQ

XJ co CD co td td

CD cd > CD £ CQ CD d 44

44 CQ t—

4

pi CO •rl d

cd o d cd CO CD CD d 44 CO X) r-J •rl 03 CD 0 (D

•rl rH d 43 CO Pi 00 M

*4 cd a cd cd CD d 1-1 44 o 43 •rl 43 Pi •rl •v 1 rH o- X ° CO X

43 CO cd p CD 3 cd a < S3 P-» Pi £

u o CO co

(D 0 o O « x? XJ

Cd Cd Cd o c d

d d cd cd 44 r4 r4 r4 M d • d d

a cd cd cd r-C 0 o r—

1

o o

cd u o u •N cd • •H d cd • •rl •rl 44 •H • •H •rl • a a. 44 M . o CL 44 44 d 0 0 0 O -H u cd •rl W cd cd c CD CD CD Cd 0 o u •v 0 o u M

Jd i-d 43 43 CD a o CO <D Cd o O U a a co 43 a 44 £ a a co G oO O G 00 u >4 -d d d CD d o d d o o

•rl M o c •H u XI d •H o Cd

r4 o O o u d o 14 d

o P3 P3 u o •rl 4J *4 o •rl 44 4J d P« 43 M4 *r! Cm 43 •44 *r! w • • CD <D CO <D CD CO Cd Cd 44 C Pi <D r4 d Pi 43 «D

<D d d d r4 d

rd ® « d o CD cd O co CD H <3 <C K cn a s C/3 4 Cd

ooc

rl3u

T3

CD 44d

OJ

X

64

RB

CQ /"S §

vi- 44 • vD d O

C/5 <D Z W • 00 3 O <C u

a

23

- 00 P

Ipp

8 i4 T3 Q <N X3

P4 p O r-l a d

3 cO »—

1

p cd

CD 0 M

44 fr a •t-4 b U cn P r—

1

J3 o CQ O

d

a)00

<c00d

u

«dCu

C/3 H

a

10

01«

c2

ij0) >o

cjd

o

o

t—

fa

CO

4Jd

•rled fa

co 0

qj «d fa r-< 2 o o *r4

01 60 2 d QJ 2

60 3 •r-l fa fa

TJ x d O O cd S XJ 0)

0) QJ •rl 2 2 QJ XJ 2

> x> XJ 2 4J (0 2 2 2 XI U d aj CO 0) o c o O cd > O O r—1 co o d d d

s

0) 0) d

§ g g g g

d o

o 1

O

a d d cd 0

XJ

» cd

> 0 O QJ>

<u XJ U

s

M 1 o o CO o co CO CO CO o 0) o P-. o o 01 a> Pn p-> CO XJ XJ r-l 4-1 0) o r—

a a QJ d QJ QJ QJ cu d <u d r—

4J d d 01 d f—r-4 QJ O X1 4-4 O O o d O

QJ X

o

QJ X

cd fad a

>* a

>< >< >* >< a

P* a

XI

cd Hto a a

><

0) 2

(fl 2

cfl >< d

11 M d co CO H z

u X £> fa fa fa 2 XJ 2 d) 2 2 2 •r*l1 XJ O o o. O O cdI CO XJ u Li oi 2 d d 2 rH1 1

0a

Ph g § s s g

fa w

g

01 2

Ph Pd tO 2

O 0 o o o o d o S O O

ts a c c C O d d d

CO 2 2 2 2 2 2 CO td fa

QJ d d a d d d QJ d o 2 2 ED 2 2 2 >< £3 s

2 d

cT

•r4CO

S-i u d •d QJ <u 00 QJ QJ 3 0) d a X oi d o <U

QJ U *rl o to QJ S' d QJ X QJ GJ d m r d B QJ !« CL u N CO d O u o d X r—

cd •rl cd o El d cd o QJ to cd XJ U

fa o CQ j-i T—

<u x: XJ & 1 QJ •H QJ QJ fa 2 60 14 d XI CQ

qj AJ d d d

- 2 OJ d QJ cd 2 XJ ^ *H

aj CO •H cd QJ E) U •H co Xi 01 cd fa O

td cd CO X 60 2 cd cd 2 d r—1 «H o r—

0) X Li d o d CO QJ d cd XJ

•r-l fa fa B 2 cd •H X •H a U 2J X CO

0) r—

<0 d fa d QJ t—

d cd d d a QJ •s cd

CO •H X o S E> •rl XJ •r-1 o •rl o •r-l •r-t d 60 XJ M r—1

cd CO d •rl o r—

cd cd CO *r-l CO CO CO “r-l •r4 QJ cd qj a rj CQ 0

rj cj cd XJ p fr cd u d H

0

4J QJ r~l QJ QJ CO Pu QJ p d X p

3 3 3 0) >4 X X 3 B o d »i-4 3 r—

fa •r-l fa fa QJ 3 •r-l X) X 5

O d d O O d 42 to to <0 O o *rl o u O d cd CO fa QJ 4-1 o 14 d c o

c •rl •rl d d •H 4-J St 3 3 d u B o o d •rl XI 6^ o QJ QJ 4J 1 d o n 3 d

fa CO "O fa fa CO d 2 QJ r—

2 X 2 O d *r-J X 2 T—

2

d qj 0 d d QJ o O o e 2 2 d O CO o H d d 3 cd d 2 d

fa CO fa fa fa co z 2 2 2 U o 2 CO < T—

fa fa fa 5 & 2 o 2

o

• • • U o o

O O o d d

• u a u 60 M M

o d 01 u CJ CO N r-l •H • 9 •s • <0 QJ XJ cd 2 a a

CO 9 O 2

U r—1 QJ U o O d o d QJ o CJ d

d <d X cd •rl P-. O O O o O •H o O

XJ o r—

d 0 • d d O O u u M • 2

a •rl •rl O' QJ o to a. d XJ • d 60 <0

cd 0 d fa d O. d 2 w S

5 r-l CO • > o a d

4-1 QJ CQ cd G M B ai U 3 to d a 2 01 s O

d fa •H O 2 d •s o y X d a a, 2

d a M fa X -O to to « 2 2 d o B o to. jg QJ 2 2 O s S CO <0 B M CJ ai o V S r—l XJ pH r—l u o ! o 0) 0) 2 JO a

cd CO QJ a 0) O 2 d S 2 d 2 2 H tu d

•rl cd X 3 2 Cl, d o CQ CJ o •d 2 d o

U s cd W 2 2 0 Ol « X in O) . H o

QJ r—l B B d fa P3 to u to oi <3 01 fr ai •rl 0) d 0) 2 2 U 2 cd d <1) 0) 3

0 fa 2 2 01 2 D O o • •rl QJ ai d • 2 d M H td H d H M 2 H 3 cn fa CJ td W H H

§

o

2

es

11

cowd

•Huy

p >

T* o s u rj 4J 3 O y p O d

r—< o d o CO .x >> CO •H T—i <u d rH <y P fc&4 D A >H

n) & -Q 0 o o p o

CO |

Pm

4J o d d

*r4 CO to

«d a)

d

y

Pm tH d> fM

co

a; >*

co

<u >*

co

a

QJ -H CO J* a <d

•rW rQ

-Q

,a>

CO

cd ,0

•H

d 0)

CO

u

<u Jh XI XJ

CO

O <U a)

cd 4J QJ

N

PQ CO cd

d -H

d <u

d (U

O 3 g •H r*H •r-'l O 0) cd Jh p d -O & O X to .x •—f

tfl

d

d o dd r—(

d>

u PM

a o O d d d M M M

CO CO CO u u u

V)

a

u

a

<u

d

d

d

-H

X XI

X <D Pm O 0 o O >, u d p d Pm Ph p-, 4J « « U p d, rH rH rH

cd o W cd cd cd MH £> O u o o d «• O •H »iH •rH d P} e b § O <U U a> s d y rd Jd rd o a. o 0 o y & w p p 4J 3 y 10 w CO P jc y y <D H H s s £

- 12 -

While the information in Table 2 is incomplete, a study of this table leads to

Tables 3? 5 and 6.

TABLE 3. MEMBRANE CURING AGENTS COMPATIBLE WITH PAINTS, WITHOUT REMOVAL

Chlorinated rubber base materials : KURE-N-SEAL, WEST CONCRETE FLOOR

TREATMENT.

Resin base materials s CLEAR BOND, CURE-SEAL, EUCO KUREZ, LAMBCO RESIN

BASE CONCRETE CURE No. S4RB, POLYCLEAR, WESTCURE

Composition not revealed by manufacturer ("unknown") : CLEAR-TREET

,

CURETcRETE”

(

contains ' no waxes), HORN CLEAR SEAL, TECHKOTE ANTI -BOND

(contains no waxes), TRU-SEAL.

TABLE A. MEMBRANE CURING AGENTS COMPATIBLE WITH RESILIENT FLOOR COVERING WITHOUT

REMOVAL.

Chlorinated rubber base : AQUABAR DURO-SEAL, C-H-S FLOOR TREATMENT,

KURE-N-SEAL, RIW SEALKURE, and WEST CONCRETE FLOOR TREATMENT

Resin base ; CLEAR BOND, CURE-SEAL, EUCO KUREZ, LAMBCO RESIN BASE

CONCRETE CURE No. 64RB, POLYCLEAR, SURE-CURE, and WESTCURE

Composition not revealed by manufacturer ("unknown”

)

; CLEAR-TREET,

CURE-CRETE No. 200 (contains no waxes), HORN CLEAR SEAL, RITECURE CLEAR,

SPECIAL, and WP (contains no waxes), TECHKOTE ANTI-BOND (contains no waxes), and TRU-SEAL.

TABLE 5. MEMBRANE CURING AGENTS NOT COMPATIBLE WITH PAINTS OR WITH RESILIENT FLOOR

COVERINGS

.

Paraffin base : EUCO KUREZ (paraffin base)

Wax-resin base : EUCO KUREZ (wax-resin or white pigmented base), HORNCURE

40W, 50D and C, 60D and C

- 13

TABLE 6. MEMBRANE CURING AGENTS WHICH DISINTEGRATE OR WHICH MUST BE REMOVED BEFORE

APPLYING PAINTS OR RESILIENT FLOOR COVERINGS.

Resin base : CRETE-SEAL, HORNCURE 30D and C, HYDROCIDE CURING COMPOUND

RESIN X

Wax-resin base : CURECOTE, DARAFILM, LAMBCO CONCRETE CURE No. 64,

LAMBCO WHITE PIGMENTED CURE No. 6W, SURESEAL

4. CONCLUSIONS

From the information obtained from the manufacturers of curing and parting compounds,

it seems obvious that paints and resilient floor coverings cannot be applied over any

such compounds which contain waxes. However, it is claimed that some wax-resin

compositions will disintegrate or can be removed without sandblasting or grinding.

Some resin base curing agents are compatible with paints and resilient floor coverings and some are not. Chlorinated rubber base membrane curing compounds appear to

be satisfactory as a base for paints or resilient floor coverings.

The compatibility of chlorinated rubber base membrane curing agents with paints and

resilient tile is corroborated by the inspection of buildings mentioned earlier in

this report and also on information from the Research and Development Laboratories

of Armstrong Cork Company. Armstrong Cork Company also have observed the incompatibility of agents containing waxes. However, according to adhesion tests by

Armstrong Cork Company, asphaltic adhesives can be used with any type of curing com- pound.

USCOMM-NBS-DC

.

U. S. DEPARTMENT OF COMMERCE

Luther I1« Hodges, Secretary

NATIONAL RURtvAP OF STANDARDS

A. V. Aatin, Director

THE NATIONAL BUREAU OF STANDARDS

The scope rtf uciivLi.'S of the National Bureau of Standards at its major laboratories in Washington, B.C., and

Boulder, Colorado, is suggested in the following listing of the divisions and sections engaged in technical work.

In general, each section carries out specialized research, development, and engineering in the field indicated by

its title. A brief description of the activities, and of the resultant publications, appears on the inside of the

front cover.

WASHINGTON, B.C.

Electricity. Resistance and Reactance. Electrochemistry. Electrical Instruments. Magnetic Measurements.

Dielectrics. High Voltage.

Metrology. Photometry and Colorimetry. Refractometry. Photographic Research. Length. Engineering Metrology.

Mass and Scale. Volumetry and Dcnsimetry.

Heat. Temperature Fhysics. Heat Measurements. Cryogenic Physics. Equation of State. Statistical Physics.

Radiation Physics. X-ray. Radioactivity. Radiation Theory. High Energy Radiation. Radiological Equipment.

Nucleonic Instrumentation. Neutron Physics.

Analytical and Inorganic Chemistry. Pure Substances. Spectrochemistry. Solution Chemistry. Standard Refer- ence Materials. Applied Analytical Research.

Mechanics. Sound. Pressure and Vacuum. Fluid Mechanics. Engineering Mechanics. Rheology. Combustion

Controls. Organic and Fibrous Materials. Robber. Textiles. Paper, Leather. Testing and Specifications. Polymer Structure. Plastics. Dental Research.

Metallurgy. Thermal Metallurgy. Chemical Metallurgy. Mechanical Metallurgy. Corrosion. Metal Physics. Electrolysis and Metal Deposition.

Mineral Products. Engineering Ceramics. Glass. Refractories. Enameled Metals. Crystal Growth. Physical

Properties. Constitution and Microstructure. Building Research. Structural Engineering. Fire Research. Mechanical Systems. Organic Building Materials. Codes and Safety Standards. Heat Transfer. Inorganic 3uilding Materials. Applied Mathematics. Numerical Analysis. Computation. Statistical Engineering. Mathematical Physics. Operations Research. Data Processing Systems. Components and Techniques. Computer Technology. Measurements Automation.

Engineering Applications, Systems Analysis.

Atomic Physics, Spectroscopy, Infrared Spectroscopy. Solid State Physics. Electron Physics. Atomic Physics.

Instrumentation. Engineering Electronics. Electron Devices. Electronic Instrumentation. Mechanical Instru- ments. Basic Instrumentation. Physical Chemistry. Thermochemistry. Surface Chemistry. Organic Chemistry. Molecular SpectroBcopy. Molecular Kinetjcs. Mass Spectrometry.

Office of Weights and Measures. BOULDER, COLO.

Cryogenic Engineering. Cryogenic Equipment. Cryogenic Processes. Properties of Materials, Cryogenic Technical Services. ionosphere Research and Propagation. Low Frequency and Very Low Frequency Research. Ionosphere Research.

Prediction Services, Sun-Earth Relationships. Field Engineering. Radio Warning Services. Vertical Soundings Research. Radio Propagation Engineering. Data Reduction Instrumentation. Radio Noise. Tropospheric Measurements.

Tropospheric Analysis. Propagation-Terrain Effects. Radio-Meteorology. Lower Atmosphere Physics.

Radio Standards. High Frequency Electrical Standards. Radio Broadcast Service. Radio and Microwave Materials. Atomic Frequency and Time Interval Standards. Electronic Calibration Center. Millimeter-Wave Research.

Microwave Circuit Standards. Radio Systems. Applied Electromagnetic Theory. High Frequency and Very High Frequency Research. Modulation

Research. Antenna Research. Navigation Systems.

Upper Atmosphere and Space Physics. Upper Atmosphere and Plasma Physics. Ionosphere and Exosphere

Scatter. Airglow and Aurora. Ionospheric Radio Astronomy.