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Old 01-18-2010 | 01:05 PM
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FliteMetal
 
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From: Houston, TX
Default RE: AEROWORKS P51 Build

Any particular reason acetone was used to dilute your Z poxy instead of denatured alcohol?

I ask because this is the first time I recall anyone using acetone with "epoxy" because acetone's out-gas during evaporation would in all probablility melt EPS or XPS foams utilized in cores of wings and tail feathers. I mention this with respect to the readers of your thread as it relates to their personal projects...and not necessarily this specific airframe...

Your viewers may not be aware of the fact the use of acetone could effect their projects and come unglued (literally) with the resulting goo their sheeted components could contain after application of resin diluted with acetone. A 30~40% dilution of 90% denatured alcohol is typically used as it enhances the interlink of resin to cellulose of the balsa resulting in stronger bond and a greater T/C without the threat of melting EPS or XPS.

The denatured alcohol leaves no residual effect on Z-poxy with respect to its strength because the alcohol evaportates. Its more or less a flow agent used for disbursement and a how rather than how much issue as is the case with most of your project. Hope this wasn't considered a distracting post.

I more or less was taking advantage of an opportunity to prevent a future Flite-Metal customer's assumptions from creating an issue with EPS or XPS on their project. I believe this P-51 is all built up wood, at least the wing is. Are the tail feathers built up as well?