Mold release opinions?

[Mike Kimball]

I'm getting close to being ready to lay fiberglass over my "mold" built in
place for the nose cowl on my Super Rebel. The mold is currently sculpted
foam. I was planning on covering the foam with either wall spackling or
bondo. Then I would sand the mold smooth and cover it with a mold release
agent. Then the glass would be laid up on the mold and hopefully will
release from the mold after curing. I have experimented with wall spackling
because it cures fast and is easy to sand. I have used it to fill gouges
and other mistakes and then I can sand the foam/spackling area nice and
smooth. I don't know if the spackling would be suitable for the final
surface to apply the mold release to. Anybody know? I know bondo works but
it's harder to sand. The other question I have is about the agent.
Aircraft Spruce lists a product called Plastiease 512B which is to be
brushed or sprayed on and also a product simply called mold release wax
which comes in a can that looks like a car wax can. That makes me think
that it is thicker and would be applied like car wax. The Plastiease sounds
easier. Any opinions on the Plastiease versus the wax?



Sure doesn't seem right for this to be a topic on a list for builders of all
metal airplanes but I'll gratefully accept any thoughts.



Mike

044SR





-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

[eric.r]

Johnsons paste wax in the can ... Pure, proven, and works.
On 3/16/2006 8:11 PM, mkimball@gci.net wrote to rebel-builders:

-> I'm getting close to being ready to lay fiberglass over my "mold" built in
-> place for the nose cowl on my Super Rebel. The mold is currently sculpted
-> foam. I was planning on covering the foam with either wall spackling or
-> bondo. Then I would sand the mold smooth and cover it with a mold
release
-> agent. Then the glass would be laid up on the mold and hopefully will
-> release from the mold after curing. I have experimented with wall spackling
-> because it cures fast and is easy to sand. I have used it to fill gouges
-> and other mistakes and then I can sand the foam/spackling area nice and
-> smooth. I don't know if the spackling would be suitable for the final
-> surface to apply the mold release to. Anybody know? I know bondo
works but
-> it's harder to sand. The other question I have is about the agent.
-> Aircraft Spruce lists a product called Plastiease 512B which is to be
-> brushed or sprayed on and also a product simply called mold release wax
-> which comes in a can that looks like a car wax can. That makes me think
-> that it is thicker and would be applied like car wax. The Plastiease sounds
-> easier. Any opinions on the Plastiease versus the wax?
->
->
->
-> Sure doesn't seem right for this to be a topic on a list for builders of all
-> metal airplanes but I'll gratefully accept any thoughts.
->
->
->
-> Mike
->
-> 044SR
->
->





-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------