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Repairing a Torn Rubber Mold

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                                       © Smooth-On, Inc. (2005)
 

FAQ:  Can a rubber mold that has torn in production be repaired?

Answer: Although a repair may not be permanent, you can repair either a silicone or urethane rubber mold so that you can at least get a few more castings.  You can then use that a casting to make
a new mold.

Repairing a silicone mold – use Sil-Poxy silicone rubber adhesive.  Important; all surfaces to be bonded must be clean.  Use acetone
or other solvent to clean the area to be bonded before applying adhesive.

Repairing a urethane mold – use Ure-Bond urethane rubber adhesive.  Important; all surfaces to be bonded must be clean. 
Use acetone or other solvent to clean the area to be bonded
before applying adhesive.