p.1 

OAR Box 1384 

Prepped by Charmelle Mathews 

Document Number: 

$23$) ll-E-199 

Docket Number: 

A-94-52 

Printed 7/2/2008 8:42:11 AM Sheet 239 of 264 
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DEC-16-9 S 01:2 7 PM PftCIFIC TAN K LT D 1 6 , c, , A t tBl<e., 

1 61 9 24 6 606 2 P . 0 2 

3i-e- W 

Date: November 20, 1998 

Contact! Mi. Norvald Faresrveit 

Company: Pacific Tank, LTD 

Telephone Number. (760) 246-6136 

Fax Number: (760) 246-6062 

Contact Summary: 

Mr. Norvald Faresrveit was contacted to update information provided in die 1993 EPA 

Reinforced Plastic/Composites Screening Survey submined by Pacific Tank, LTD for their facility 

located in Adelaiito, California. In response to my questions Mr. Norvald indicated die following: 

The facility makes conosion resistant products for a number of applications including 

chemical storage, water treatment, and semiconductor manufacturing- j 

The facility nses several processes to make the corrosion resistant products discussed above. j 

These processes include manual resin application (bucket & brush), mechanical resin application j 

(spray lay-up, chop-hoop filament winding), and helical filament winding. Helical filament winding j 

involves the wetting of reinforcement by drawing die continuous glass reinforcement through a resin j 

bath prior to the reinforcement being wound on a rotating mandrel. In chop-hoop filament winding, 

dry continuous glass reinforcement is helically wound on a mandrel (perpendicular to the axis) in 

a thin "wet bed" of resin and chopped reinforcement. The "wet bed" of reinforcement is applied to 

the mandrel using a spray gun (chopper gun) that feeds 1 or 2 strands of continuous glass 

reinforcement thorough the spray gun chopper mechanism during the resin application. In certain 

cases, both helical and chop-hoop filament winding are used to make the same product. 

During the 1997 calender year, the facility uses 50.880 lbs of isophthalic resin. The primary 

isophthalic resin used by the facility was Reichhold Dion 6631 although small quantities of Cargil 

8456 were also used. The HAP (styrene) content ofthe Reichhold Dion 6631 resin is 48.0% by 

weight. (This HAP content was supplied by Reichhold rather than Pacific Tank, LTD). The only 

HAP present in tbe isophthalic resins is styrene. No additional HAP (such as styrene) is added to 

the resins during or prior to fabrication. A vapor suppressant is noi added to the isophthalic resins 

during ov prior to fabrication. 

The facility also used 63,450 lbs of vinyl ester resin during die 1997 calender year The 

primary vinyl ester resin used by the facility was DOW Derakane 411-350 PA although small 

quantities of Ashland Hetron 922 were also used. The HAP (styrene) content of die DOW Derakane 

411 -350 PA resin is approximately 45.0% by weight. (This HAP content was supplied by DOW 

Chemical rather than Pacific Tank, LTD). The only HAP present iii die vinyl ester resins is styrene. 

No addilional HAP is added to diese resins during or prior to fabrication. A vapor suppressani is not 

added to the vinyl ester resins during optiaor to fabrication. 

INFORMATION IS ACCURATE^ 
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DEC-16-9S 01:27 PM PACIFIC TANK LTD 1 619 246 6062 P. 03 

sCuntuot Rti port 

Mr. Nor. aid Farestveit 

Pacific Tank LTD 

November 20, 199S 

Page Two 

The particular resin used by the facility is dependent on standard industry specifications such 

s.t ASTM DJ299. die chemical cnvironmcnt(s) die product will be exposed to, and the specifications 

of die product customer. For certain chemical storage environments the facility uses the same resm 

to make a particular produd, allhuuub Ihv product mtiy l;v umUv wtiun Uillwvul IfciUw^t'v.'-

processes. For example, a storage tank may be made using both hand lay-up and helical filament 

winding, but the resin applied using both processes will be the same resin. In odier cases, the facility 

will make the interior corrosion banier of die product with a premium, highly corrosion-resistant 

resin (e.g. a vinyl ester resin), and dien use a different resin for die structural ponions ofthe product 

(e.g. a fire-retardant resin or a higher HAP content isophthalic resin). 

INFORMATION IS ACCURATE £ _ 

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f DEC-16-9 S 01:2 6 PM PACIFI C TAN K LT D 1 61 9 24 6 606 2 P. 01 

Fax transmission cover sheet 

PACIFIC TANK LTD 

J7177 Muskrat Ave. 

Atlclanlo, CA 92301 

This transmission consists of ** pages, of which this is #1. 

Tel: (760)246-6136 

Fax: (760)246-6062 

TO; rao.r- ^ n/ •/! *J W M sS'4 \>*-v— JsPW \ cx5-J 

ATTENTION:jjjo /*o A T M , Qfr*Ht&-*ij FA* tf- in -*? YI - °L 3 V 

SENT UV: NI°^ K ^ F/4<vSV</^ , DATE: M^ -t^ 

COMMENTS: 

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