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Building Tips and technical articles. => Paint and finishing => Topic started by: Mike Griffin on November 21, 2019, 01:27:11 PM

Title: Tautening or non tautening?
Post by: Mike Griffin on November 21, 2019, 01:27:11 PM

When covering with silkspan or polyspan on built up flaps, do you use tautening or non tautening dope?  I was worried about tautening dope causing the flap to warp.

Mike

Title: Re: Tautening or non tautening?
Post by: Ken Culbertson on November 21, 2019, 04:12:57 PM

A trick that I stumbled on when I ran out of tauting dope and was too impatient to wait on an order using polyspan was to dope it with the non-tauting then hit it with a heat gun while it was still plastic.  After two coats like this it was drum tight and has stayed that way for a year.  The good (and bad) thing about polyspan is that it will keep shrinking if you keep heating it - right up to the point it melts.  Once those tauting coats dried, the non-tauting did not loosen it.

Ken

Title: Re: Tautening or non tautening?
Post by: Mike Griffin on November 25, 2019, 02:23:53 PM

Thank you for the help.

Mike