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Posts made in October 24th, 2012

How to make a two-part mold

Posted by on Oct 24, 2012 in Blog, Uncategorized | 46 comments

This video segment will show you how to make a simple two-part mold using Urethane RTV molding rubber. Block mold explanation. This is the most basic mold method for silicone rubber. This is a good method when speed is more important than overall cost. We used 73-45 platinum silicone for this particular mold. A cut block mold like this works best with rubber that is shore A20 or higher. This means a medium rubber. Soft rubber such as Gel-10 would be too soft and would distort at the seams. Video Rating: 4 /...

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