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Building Tips and technical articles. => Paint and finishing => Topic started by: Bootlegger on September 05, 2016, 02:26:26 PM

Title: poly span
Post by: Bootlegger on September 05, 2016, 02:26:26 PM

  How in the world can you tell which side of this stuff is the top?  I have tried rubbing my beard on it to tell and it DON'T work!!  What does??

            T I A... HB~> HB~> HB~> HB~> mw~ mw~ mw~

Title: Re: poly span
Post by: Fredvon4 on September 05, 2016, 03:09:03 PM

I put a small dab of Sigment or ambroid on my pinky and let it dry ...then fuss with it a bit to make it have rough edges....

the inside side drags and smooth out side slips.... my eyes CANNOT see the distinction

Title: Re: poly span
Post by: Russell Shaffer on September 06, 2016, 09:44:27 AM

Maybe the smoother grades of Velcro?  Something that will slide on the smooth side and catch on the bottom.

Title: Re: poly span
Post by: john e. holliday on September 07, 2016, 09:03:12 AM

So far the Poly-Span I have used curls towards the surface that is the ruff side.   As stated, if you hold it under a light you will see the ruff side is a little duller sheen.   But if you so put it down wrong, put several more coats of dope on before sanding very lightly,  other wise use Larry Renger's idea of SLC(Super Lite Covering)  from Corehouse instead of dope. 

Title: Re: poly span
Post by: Larry Renger on September 07, 2016, 05:09:44 PM

 After a couple of coats of dope, wet sanding with 2000 grit will cut the fuzz without raising more if you screw up.