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How to Join Two Pieces of Foam Board Together


by DoItYourself Staff

To join two pieces of foam board without the aid of any adhesives is to make their adjacent sides into interlocking teeth. Foam board is very durable and holds its shape well. The polystyrene core also possesses the necessary friction to create an adequate bond when pieces are joined tightly. 

Joining Two Pieces of Foam Board

You will need an razor cutter for this task, along with a pencil and a straight edge.

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