Epoxy in mold

[Fastrr]

I have a question. I noticed epoxy (when compared to polyester resin) tends to gas off slow. Meaning air bubbles take longer to rise and “pop”.

Do you pro carbon workers think it is possible to use epoxy in a two part pressure mold? there would be no vacuum just clamps holding the mold halves together. Would this trap visible gas/air bubbles in the part surfaces? The laminate is 3 to 6 layers of carbon fiber.

note: I probably would not use clear gel coat unless it became necessary.

Q: Will polyester resin odor supressors tint the color of the resin to such a degree that it would be visible on a carbon fiber/clear gel coat part?

Thanks for the help!

[Werksberg]

I have a question.
Q: Will polyester resin odor supressors tint the color of the resin to such a degree that it would be visible on a carbon fiber/clear gel coat part?
Thanks for the help!

No. PER odor suppressors only change the odor of the PER. Did you ever get any of mine…?

[hojo]

I have a question. I noticed epoxy (when compared to polyester resin) tends to gas off slow. Meaning air bubbles take longer to rise and “pop”.

Do you pro carbon workers think it is possible to use epoxy in a two part pressure mold? there would be no vacuum just clamps holding the mold halves together. Would this trap visible gas/air bubbles in the part surfaces? The laminate is 3 to 6 layers of carbon fiber.

note: I probably would not use clear gel coat unless it became necessary.

Q: Will polyester resin odor supressors tint the color of the resin to such a degree that it would be visible on a carbon fiber/clear gel coat part?

Thanks for the help!

epoxy takes longer to gas off because generally it is more viscous than poly/vinylesters. people use epoxy for compression molds all the time. the amount of pressure and size shape and how well your molds are offseted will determine weither you seen visible air on the surface. make sure you have good stiff molds because otherwise just using clamps may not create equal pressure on the part.

[riff42]

So you want to do RTM? There are many RTM resins, both VER and Epoxy. Any real problems you might have, are leaks, and dry spots (depending on…well…everything. Mold, Part, permeability, resin, pressure, etc)