Great Dane excavating co.

[tc1cat]

Have been thinking about your mold making and tire making project. If memory serves me correctly- don't bet on it!!- you can put your mold in the vacuum chamber as it cures so that it won't distort if you put the completed mold in the vacuum chamber with resin in it to mold the tire. This way all of the trapped air is removed from both the mold and the resin for the tire. I am sure this is what Alumalite recommends. Never purchased a vacuum chamber as I tried to stick to open or 1 sided molds. I do remember them saying that you need to use the vacuum chamber for all phases of the process. Just using the vacumm on the mold silicon and the resin before molding is not enough to get ALL of the air out. The vacuum must be used during the curing time to remove any trapped air accumulated during the pouring process. Modelman's pouring vents also help a lot.

Hope that this might help.