---------------------------------------------------------- Glasair-List Digest Archive --- Total Messages Posted Fri 09/21/07: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:35 AM - Acetone on "cured" resin (MPPalmer@aol.com) 2. 10:20 AM - Re: Acetone on "cured" resin (Steve Thomas) 3. 10:22 AM - Re: Acetone on "cured" resin (frequent flyer) 4. 11:06 AM - Re: Re: Glasair-List Digest: 2 Msgs - 09/18/07 (Craymondw@aol.com) ________________________________ Message 1 _____________________________________ Time: 09:35:53 AM PST US From: MPPalmer@aol.com Subject: Glasair-List: Acetone on "cured" resin I remember something from the factory in the GlasairNews years ago about concern over Alcohol in fuel (maybe as it related to auto-gas.) because it wasn't compatible with our resin. So out of curiosity, I took a 2 ply layup that had been sitting around for a while and let it sit in a jar of acetone for a week. I was curious to see if cured resin could be leeched out. Yes, it can. There were raw spots of fiberglass after the experiment. Maybe the difference between what the previous writer said and my results are due to the fact that our resin system doesn't quite fully cure until you heat it to 180 or so? In any event, sounds like another experiment is in order. Someone should soak a layup in Ethanol. My 2 cents. Mike Palmer <><

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See what's new at ________________________________ Message 2 _____________________________________ Time: 10:20:11 AM PST US From: Steve Thomas Subject: Re: Glasair-List: Acetone on "cured" resin Mike, It is well known that acteone will soften the Derakane vinyl ester resin. In fact, if you want to clean cured fiberglass off of aluminum or any other metal, just soak it in acetone for a wile and it will come right off. Ethanol is another matter. Vinyl esters were developed specifically for underground gas tanks. Go ahead and soak some layups in Ethanol and tell us how it works out. Best Regards, Steve ____________________________________________________________________ On Sep 21, 2007, at 9:34 AM, MPPalmer@aol.com wrote: > I remember something from the factory in the GlasairNews years ago > about concern over Alcohol in fuel (maybe as it related to auto- > gas.) because it wasn't compatible with our resin. > > So out of curiosity, I took a 2 ply layup that had been sitting > around for a while and let it sit in a jar of acetone for a week. I > was curious to see if cured resin could be leeched out. > > Yes, it can. There were raw spots of fiberglass after the experiment. > > Maybe the difference between what the previous writer said and my > results are due to the fact that our resin system doesn't quite > fully cure until you heat it to 180 or so? > > In any event, sounds like another experiment is in order. Someone > should soak a layup in Ethanol. > > My 2 cents. > > Mike Palmer <>< > > > ***************************** ________________________________ Message 3 _____________________________________ Time: 10:22:31 AM PST US From: frequent flyer Subject: Re: Glasair-List: Acetone on "cured" resin Hi Mike, Interesting results. They have said that the vinyl ester resin we use is used to make fuel storage tanks but I have no proof of that. Acetone is a little more likely to affect it than alcohol I would think. Jack MPPalmer@aol.com wrote: I remember something from the factory in the GlasairNews years ago about concern over Alcohol in fuel (maybe as it related to auto-gas.) because it wasn't compatible with our resin. So out of curiosity, I took a 2 ply layup that had been sitting around for a while and let it sit in a jar of acetone for a week. I was curious to see if cured resin could be leeched out. Yes, it can. There were raw spots of fiberglass after the experiment. Maybe the difference between what the previous writer said and my results are due to the fact that our resin system doesn't quite fully cure until you heat it to 180 or so? In any event, sounds like another experiment is in order. Someone should soak a layup in Ethanol. My 2 cents. Mike Palmer <>< ***************************** --------------------------------- Fussy? Opinionated? Impossible to please? Perfect. Join Yahoo!'s user panel and lay it on us. ________________________________ Message 4 _____________________________________ Time: 11:06:19 AM PST US From: Craymondw@aol.com Subject: Re: Glasair-List: Re: Glasair-List Digest: 2 Msgs - 09/18/07 Some Glasair builders coated the inside skin leading edge areas to prevent fiber glass fibers from getting in their fuel system. If they didn't use exact ratio of resin to catalyst and the resin hasn't fully cured, they may have problems with ethanol. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message glasair-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Glasair-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/glasair-list Browse Digests http://www.matronics.com/digest/glasair-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.