Need some advice on a vacuum bagging problem. It's more cosmetic than structural but I can't seem to get rid of the effect.
Just about every time I bag a wing, I get what look like worm tracks on the surfaces. It's primarily on the upper surface but sometimes shows up on the lower. These are little sinuous tracks - indentations really - on the surface that wander around for a few inches. Looks just like what you'd see if you split a piece of wood and it had been internally munched by some critter. Maybe 1/32 to 1/16 inch deep and 1/8 inch wide. I usually get one or two of them per session. Just enough to uglify an otherwise nice finish. Using Foamula 250 and an ACS bagging system/pump. West Sytems with 205 hardener. Light glass and carbon (DLG wings). I thought it was trapped air and have been rolling from the edge to get rid of it but that doesn't work. Any suggestions would be appreciated. Could this just be a bad batch of foam? - Dave R RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.
