p.1 

OAR Box 1384 

Prepped by Charmelle Mathews 

Documem Number: 

1) ll-E-150 

Docket Number: 

A-94-52 

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From: 

Date: 

Contact: 

Company: 

FAX BIZ 482 5107 SUNK1SE FIBERGLASS 

^^919941023 4 PES RTP MC 

Contact Report 

10001 

10002/003 

A 94 5? 

Robert Jemison, Pacific Environmental Services, Inc. (PES) 

April 21,1998 

Mr. Byron Rieck 

Sunrise Fiberglass Corporation 

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Telephone Number: (612)462-5313 

Fax Number: (612) 462-5107 

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Contact Summary: 

Mr. Byron Rieck was contacted on behalf of the U.S. EPA to update information provided 

in the 1993 EPA Reinforced Plastic Composites Screeoing Survey submitted by Sunrise Fiberglass 

Corporation for their facility located in Wyoming, Minnesota. In response to nay questions Mr. 

Rieck indicated the following: 

The facility is a "job shop" that produces a wide variety of products. 

The facility uses hand lay-up to apply polyester and vinyl ester resins in ihe fabrication of 

certain products. The polyester and vinyl ester resins applied by hand lay-up contain approximately 

40% HAP by weight (on average). The only HAP initially present in the polyester and vinyl ester 

resins is styrene. No additional HAP is added to the resins during the fabrication process with the 

exception of small amounts of HAP that may (or may not) be present in initiators, promoters and/or 

catalysts added to the resins. Approximately 90% ofthe resins applied using hand lay-up contain 

a vapor suppressant. 

The facility uses spray lay-up to apply polyester and vinyl ester resins in the fabrication of 

certain products. The polyester and vinyl ester resins applied by spray lay-up contain approximately 

40% HAP by weight (on average). The only HAP initially present in the polyester and vinyl ester 

resins is styrene. No additional HAP is added to the resins during the fabrication process with the 

exception of small amounts of HAP mat may (or may not) be present in initiators, promoters and/or 

catalysts added to the resins. Approximately 85% ofthe resins applied using spray lay-up contain 

a vapor suppressant. 

The facility uses spray lay-up to apply a number of pigmented polyester gel coats which 

contain approximately 38.6% HAP by weight (on average). The gel coats contain both styrene 

(approximately 34% by weight) and methyl methacrylate, (approximately 4.6% by weight). No 

addilional HAP is added to the gel coats during the fabrication process with the exception of small 

amounts of HAP thai may (or may not) be present in initiators, promoters and/or catalysts added to 

the gel coats. 

INFORMATION IS ACCURATE^ ^ TVrt^ - ^ (^KM^ > 

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04/23/98 „ THU 16:37 FAX 612 462 5107 ^FJi*^5* ®003/!oT <&3

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Sunrise Fiberglass Corporation 

April 21,1998 

Page Two 

The facility uses the resin transfer molding (RTM) process on a limited basis. The vinyl ester 

resins applied using the RTM process contain approximately 45% HAP by weight (on average). The 

only HAP initially present in the vinyl ester resins is styrene. No additional HAP is added to die 

resins during the fabrication process witii the exception of small amounts of HAP that may (or may 

not) be present in initiators, promoters and/or catalysts added to the resins. 

The facility uses a vacuum-assisted molding process in the fabrication of certain products. 

The vacuum assisted molding process is conducted by pouring a resin into a mold, covering the mold 

with a rigid cover, and then applying a vacuum to the mold. The facility does not roll out the resin 

prior to covering the mold. The polyester and vinyl ester resins used with the vacuum assisted 

molding process contain approximately 40% HAP by weight (on average). The only HAP initially 

present in the polyester and vinyl ester resins is styrene. No additional HAP is added to the resins 

during the fabrication process with the exception of small amounts of HAP that may (or may not) 

be present in initiators, promoters and/or catalysts added to the resins. 

There are no mixing operations conducted at this facihty. 

INFORMATION IS ACCURATE 

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