A Paper presentation on Pure Polyurea vs. Hybrid polyurea / Polyurethanes& Epoxies
At SSPC 2011 New Delhi

By:

VOELKEL INDUSTRIE PRODUKTE GMBHLOHENSTR. 11
D-82166 GRÄFELFING (MUNICH) – GERMANY
T. +49 – (0)89- 895 5809 0
F. +49 – (0)89- 895 5809 99
Website: www.vip-gmbh.com / www.polyurea-solutions.com
Email id: info@vip-gmbh.com / india@vip-gmbh.com

Milestones
2011
2000

1983

VIP
Foundation
Germany
Trading company
forAdhesives for theautomotive
aftermarket

2009
2010
2004

1990 – 1999

Expansion intoindustrial
applications ofinnovative adhesivetechnologies

Polyurea
Coating Sytems
Market LaunchIntl. Expansion

Specialization and inhouse R&D of 2K
adhesives, sealants &coatings

VIP India
Sales team,distribution &Applicator network

VIP Middle East
LLC local Manufacturingof Polyurea Systems in Dubai

VIP SE
Asia
Sales team,
distribution &Applicator network

What is POLYUREA?
•••
•
•
••
•
•
•

A high reactive performance coating
2 liquid components (Part A + B)
Mixing Ratio 1:1 (volume)
Part A - Isocyanate Pre-Polymer
Part B - Amine terminated resin blend
Rapid cure from liquid to plastic coating
Flexible
Waterproof
Has outstanding properties
Designed to protect various surfaces

POLYUREA beats traditional coatings…

What is POLYUREA?
•Definition of Polyurea by thePolyurea Development Association (PDA), 2000
A pure polyurea coating/ elastomer is derived from thereaction product of an isocyanate component and aresin blend component such as amine-terminatedpolymer resins, and/or amine-terminated chain
extenders. The isocyanate can be aromatic or aliphatic innature. It can be a monomer, a polymer, or any variant
reaction of isocyanates, a quasi-prepolymer or aprepolymer. The prepolymer, or a quasi-pre polymer, canbe made of an amine-terminated polymer resin.

What is POLYUREA?
•Definition of Polyurea by thePolyurea Development Association (PDA), 2000
The resin blend must be made up of amine-terminatedpolymer resins, and/or amine terminated chain extenders.
The amine-terminated polymer resins will not have any
intentional hydroxyl groups. Any hydroxyls are the result ofincomplete conversion to the amine-terminated polymer
resins. The resin blend may also contain additives ornonprimary components. These additives may containhydroxyls, such as pre-dispersed pigments in a polyol carrier.
Normally, the resin blend will not contain a catalyst.

Polyurea components
Polyurea is an elastomer made from two reactive components
A-component■ Isocyanate prepolymers (MDI based
for aromatic systems,
HDI- or IPDI-based for aliphaticsystems)
B-component■ Amines (polyether amines)■ Amine chain extenders■ Additives (e.g. pigments,defoamers, flame retardants, etc.)
In case of pure polyurea B component is made up of amine-terminatedpolymer resins, and/or amine terminated chain extenders as more than 80%of the total content of component B.

Functions of components
Amine chain extenders• Faster film property development
With high strength.
• Excellent UV and color stability of
the film Easy to formulate with various
amine systems.
• Slows down gel time allowing for
better adhesion.
• Flow and leveling maintains better film stability
at elevated temperatures.

Functions of components
Polyetheramines• Used as curing agents.
• Films hardening agents.
• If very high hardness is desired thetrifunctional Polyether amine is required
for a stronger cross linking.
• Polytetra hydrofura amine leads to reduced
moisture uptake and swelling as well as toimproved abrasion resistance.

Functions of components
Additives••••

Pigments for coloration
Flame retardants
Defoaming or deaerating agents
Other processing auxiliaries

POLYUREA
Properties
Properties

Polyurethane

Epoxy

Pure Polyurea VIP QuickSpray

Working times

FastSlow

Extremly fast (5 seconds to 15 seconds)

Atmospheric Moisturesensitivity

Yes

Yes

No, moisture insensitve

Elongation

1000%Tend to get brittle

Upto 1000% (Flexibile with high tensile
strenght so does no crack)

Colour stability

Average, yellowing

Average, yellowing

Aromatics: average
Aliphatics: 100% UV resistant and colour
stableAbrasion resistance>15 mg , 500g/1000 cycles(ASTM D-4060)< 6mg, 500g/1000 cycles(ASTM D-4060)< 6mg, 500g/1000 cycles (ASTM D-4060)

Superior tensile strength

About 8-10 N/MM2

15-20 N/MM2

More than 20N/MM2

Chemical resistance

GoodVery Good

Excellent (Can resist upto 20% H2SO4 also)

VOC freeNoNo

Yes (Ecofriendly)

Temperature resistance

From -30°C to +120°C

From -20°C to +110°C

From -50°C to +150°C

Seamless

NoNoYes, unlimited mil thickness with one layer

Coverage

Different

Different

Average 1L = 1m2 = 1mm

Duratbility

GoodAverage

Excellent

Solid Content

50-100%50-100%100%

Pure POLYUREA vs. Hybrid

Properties

Hydrid polyurea

Pure Polyurea VIP QuickSpray

Working times

Fast

Adjustable (5 seconds to 8 mins)

Moisture sensitivity

Sensitive to atmospheric moisture

Atmospheric moisture insensitve

Film quality

May have pinholes

Free from pin holes

Abrasion resistance

Average

Very good < 6mg ( C17,500gms/1000 cycles)Superior tensile strength

Good

Excellent ( 23 N/mm sq)

Chemical resistance

GoodVery Good

Temperature resistance offlim

From -30°C to +120°C

From -50°C to +150°C

Temp resistance during
application

From 5°C to +45°C

From -10°C to +70°C

Shel life Duration

6-9 months

12 months

Film life

Approx 4-5 years

Can go from 10 to 20 years easily

Solid Content

80-100%100%

POLYUREA
The System

Top coat (aliphatic)

POLYUREA Coat (aromatic)

PrimerSubstrate
Substrate

Substrate
Substrate

SubstratePure POLYUREA
Properties

Thermal resistance

Applicablewithout having
any influence on
curing time°C°F+150+302+60+140032-32-25-60-76

Temperature
resistance

Resits thermal shocks
The coating is widely used over polyurethane foam for wall and roofing
insulation systems in building, residential housing and temperature controlledcontainment tanks (wine, oil or chemicals).

Pure POLYUREA
Properties

Superior tensile & structural strength•

Excellent adhesion on steel, aluminium, GRP, plastics,
concrete, wood, isolating foams•High tensile strength (3000psi/ ≥ 20MPa) while still having excellent
elongation

Deformation from moving substrate shifts will be reduced
Thick Polyurea adapts to sonic & vibratory attack for e.g. earthquakes
Polyureas will bridge hairline cracks in concrete it act as shock absorber aswell because of high tensile strength along with flexibility & elongation.

Pure POLYUREA
Properties

Superfast reaction times•

Polyurea's fast reaction time (5-15 seconds) leaves
polyurethane and epoxy materials in the proverbial
dust.
Tremendous savings because of minimum
downtime for facilities.
Especially important for traffic, manufacturingindustry, energy and petrochemical market.

Pure POLYUREA
Properties

High abrasion resistance & flexibility•

High abrasion resistance (ASTM 4060-90)•Superior elongation (upto 700%)
soft, elastic and extremely flexible•

No cracking when exposed to constant pounding

stays

Tremendous savings because of much longer maintenanceintervalls. Epoxies crack and have to be repaired and recoated. Polyureas guarantee a lifetime of 10 years and more
after proper application.

Pure POLYUREA
Properties

Moisture insensitivity•

Pure Polyurea does not contain polyols or catalyst•

Pure Polyurea does not contain –OH groups•

The reaction of component A and component B (polyamines)
is so fast that the moisture reaction cannot occur
Polyurea is unbeatable in climates or regions with highhumidity and moistureNo pinholes, less costs: No further measures for deaerationand set-up of a closed-porositiy surface

NOTE: Surface preparation is always necessary!

Pure POLYUREA
Properties

High chemical resistance•Polyurea is the choice of facility managers for storage ofdiluted acids, alkali, salt solution, organic solvents and oils•

Polyurea provides a strong barrier to spills from reaching theenvironment•

Ideal for petrochemistry, chemical processing facilities,(potable) water systems, reservoirs, sewage processing,manholes, holding tanks, secondary containment
protection…

Pure POLYUREA
Properties
Environmentally-friendly••••

No VOC´s (Volatile Organic Compounds)
No solvents
No fumes
No styrenes

•
•
•
•

100% solids
Less overspray
Little to no odor
certified for potable water

Water Regulations Advisory Scheme (UK)
United States Department of Agriculture (US)

Ideal for the food industriescorresponding to strikt styrene emission laws Europe-wideDivisions & Markets

Coatings Systems
Water and Waste Water Industry
Power & Energy Markets
Petrochemical Industry
Roofing & Waterproofing
Industrial Flooring & Carparks
Airports & Heildecks
Ship building Industry
Infrasctructure, Tunnels & Bridges
Automotive, Trucks & Transport
Leasure & Theme Parks
Swimming Pools & Ponds
Furniture and foam Industry

Thanks for your kind attention!!!