Sounds more like:
1. the aren't thick enough. 2. Or you have some nasty wrinkles in the breather layer. 3. You might have some hardened epoxy in the breather.
Do the worm tracks always wind up in the same spot? If so check the above.
Any chance while sanding the cores that you scarred them with a sanding block?
[EMAIL PROTECTED] wrote:
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
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-- Jeff Steifel
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