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resin used in cowls

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fklein(at)orcasonline.com
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Posted: Sat Sep 26, 2009 10:53 pm Post subject: resin used in cowls

I'm planning on building a special cowl for a non-standard engine and,  

thus far, I have been unable to locate any information on temperature  

limitations for the epoxies we normally use, in my case Aeropoxy. Does  

anyone know what resins are used in the stock cowl?



Thanks in advance for any help in this area,



Fred

A194

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ami(at)mcfadyean.freeserv
Guest

Posted: Sun Sep 27, 2009 12:23 am Post subject: resin used in cowls

Class 2 fire retardant polyester resin.

Which has a Tg of about 80C, AFTER heat curing.

It's very difficult to find a fire retardant epoxy resin (that can be used 

for lay-up), but the Dow Chemical vinyl-ester types can be obtained in fire 

retardant forms (and are better than polyester resins).



Duncan Mcf.

---

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fklein(at)orcasonline.com
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Posted: Sun Sep 27, 2009 8:14 am Post subject: resin used in cowls

On Sep 27, 2009, at 1:16 AM, Duncan & Ami McFadyean wrote:

 	  Quote: 	
		  Class 2 fire retardant polyester resin. Which has a Tg of about 80C, AFTER heat curing. It's very difficult to find a fire retardant epoxy resin (that can be used for lay-up), but the Dow Chemical vinyl-ester types can be obtained in fire retardant forms 	




Duncan...thank you...googling "fire retardant vinyl-ester resin" took me immediately to:

Interplastic Corporation (interplastic.com), a specialty chemical company with its headquarters in St. Paul, Minnesota. 

CORVE8441M-AT is a promoted, fire retardant, vinyl ester resin. This versatile resin contains antimony pentoxide to enhance fire resistance. According to the ASTM E84 Tunnel Test, it has a Class 1 flame spread rating of less than 25 without further additives. This product is corrosion resistant and is used in customer applications in the corrosion, transportation, construction, and fire resistant engineered products markets. Easily applied in spray-up, hand lay-up, and filament winding operations.

This may be the ticket for me...but I'll check Dow Chemical too,

Fred

  [quote][b]

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grahamsingleton(at)btinte
Guest

Posted: Sun Sep 27, 2009 2:42 pm Post subject: resin used in cowls

Fred

I suspect it is a polyester resin, or maybe vinyl ester. Probably with 

fire retardent. I'll see if I can find out.

Graham



Fred Klein wrote:

 	  Quote: 	
		   



 I'm planning on building a special cowl for a non-standard engine and, 

 thus far, I have been unable to locate any information on temperature 

 limitations for the epoxies we normally use, in my case Aeropoxy. Does 

 anyone know what resins are used in the stock cowl?



 Thanks in advance for any help in this area,



 Fred

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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