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by donb
Mon Apr 21, 2003 3:35 pm
Forum: Techniques and Tools
Topic: Cement Mold Issue
Replies: 1
Views: 3114

Cement Mold Issue

Hello, I am using using the cement mold mix from Boyce Lundstom's glass fusing book 1. I am getting a bowing in flat molds that are 9 ish inches and longer. Does anyone know why this is happening and how to reduce/eliminate it? Mold mix formula: 6 parts calcium aluminate 3 parts sand 2 parts vermicu...