Re: Air bubbles in polyurethane castings

From: Nathaniel J. Leon (
Date: Fri Jul 24 1998 - 00:35:23 EEST


I have never heard of a gas that will do that and would be very
surprized if one existed.

Couple of questions for you:

Do you degass the urethane before pouring?

Are you talking about surface bubbles?

Have you modified your pouring techniques to minimize the problems?

What about looking at different mold releases that may be less likely to
trap air?

Niel Leon - CDS,inc

For more information about the rp-ml, see

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