Old 11-14-2018, 11:17 AM
  #10  
Cari-in-Oly
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Join Date: Aug 2014
Location: Victorian Sweatshop Forum
Posts: 4,096
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When a mat that I have got warped I laid it flat out in my shop loft and put a big piece of flat wood on top of it with boxes of stuff on top of that. Left it there for few months(actually forgot about it) and now it lays flat again.

Cari
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