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leinad
Joined: 19 Sep 2006
Posts: 283
Location: Central Virginia
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 Posted: Fri Aug 08, 2008 2:23 pm Post subject: fiberglass mold making questions |
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I've made my form, and have materials to make the mold, but I have some questions.
When laying up fiberglass the instructions I've seen talk about using a paint brush to apply the resin. Does this mean I need one paint brush (to throw away) per layer of glass?
I've seen instructions from one source that used only 3 layers of glass for the mold and 2 for the parts. Another used 14 layers for the mold and didn't say how many for the parts. For stabilizer tips does someone have a recommendation?
Dan
601XL plans builder
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Scratch building XL with Corvair Engine |
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larry(at)macsmachine.com
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| Posted: Fri Aug 08, 2008 3:33 pm Post subject: fiberglass mold making questions |
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Hi,
You only need two layers of a 9-ounce cloth to do the product in the
mold. Assumed you've paste waxed the mold several times and buffed it.
A brush is used to wet the mold with activated resin, then lay the
pre-trimmed cloth in the mold,
wet the cloth with more resin, apply the second layer of cloth and wet
the inside until the cloth until both layers are wet. Stipple the
bubbles from the cloth
at each layer and allow only 20-minutes to get all this done. To save
the brush, keep a jar of acetone handy to clean it and wipe it with a
bunch of paper towels.
Don't do this without throw-away latex gloves. I'm assuming your using
a polyester resin , so do use a respirator.
Larry McFarland 601HDS at www.macsmachine.com
leinad wrote:
| Quote: |
I've made my form, and have materials to make the mold, but I have some questions.
When laying up fiberglass the instructions I've seen talk about using a paint brush to apply the resin. Does this mean I need one paint brush (to throw away) per layer of glass?
I've seen instructions from one source that used only 3 layers of glass for the mold and 2 for the parts. Another used 14 layers for the mold and didn't say how many for the parts. For stabilizer tips does someone have a recommendation?
Dan
601XL plans builder
--------
Scratch building XL with Corvair Engine
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