View Single Post
  #8  
Old August 14th 17, 03:46 AM posted to rec.aviation.soaring
Eric Greenwell[_4_]
external usenet poster
 
Posts: 1,939
Default Solvent for Gap-Seal tape prep

wrote on 8/13/2017 3:37 PM:
I sand the area where the stickie will go with 200 grit and sand the inside (10mm) of the Mylar with 200 grit also. Then wipe everything down with Acetone.........it won't hurt Poly Urethane. Mask off the area to insure the Mylar goes on straight, then roll it down with lots of pressure. I use a 1" bearing on a stick.
JJ


Is the sanding on the Mylar to roughen, or to remove a surface treatment that
interferes with adhesion? I ask because the Mylar tapes I've bought with the
pre-applied transfer tape are not sanded underneath the transfer tape, and I don't
have any adhesion problems with them.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1
- "Transponders in Sailplanes - Dec 2014a" also ADS-B, PCAS, Flarm

http://soaringsafety.org/prevention/...anes-2014A.pdf