Rob
     SIG  Stix It, will work on polyspan,I picked some up at Col Taylor Hobbies,Wagga
on my way back from Melbourne,Kelletts in Sydney may carry it.

Paul Allen

Rob


"Applying The Covering  (Silkspan, Japanese Tissue, Sig Koverall, Polyspan)  I have always applied one coat of Sig Nitrate dope unthinned to the bare wood sanding after each coat with 600.  The reason for using Sig Nitrate is to seal the wood and create a base that the covering will adhere to.  When using polyester coverings it is mandatory for proper adhesion of the covering unless you are using Sig Stix-it to adhere the covering to the framework.  The first coat of dope on the polyester covering is always Nitrate followed by Butyrate.  Butyrate can be applied over Nitrate but Nitrate will not go over Butyrate.  Another advantage of Nitrate is the thick glue like characteristics.  This comes in handy when trying to seal the fuzzy edges of Koverall before sanding and blending."
http://winshiprc.tripod.com/painting_techniques.htm

Here are some more good tips..
http://www.rcgroups.com/forums/showthread.php?t=170038

Here is the Starline site with it's tips on Polyspan.. this is how I have done my 2 planes that I have used this stuff.. weight wise it's OK .. the paint can build up quickly buy the finish is nice .. I still can make a plane lighter with silkspan. But I sure like the durability a whole lot more..

http://www.faimodelsupply.com/starline-polyspan2.htm

Jim

All,
How above 3M spray can adhesive to adhere the polyspan?  Not sure if it's available down under.

Rob,
What do you plan to paint the open bays with since you are trying to avoid dope and polyspan won't take water-based paints?

Kim Mortimore
Santa Clara, CA

I applied polyspan using Baslaloc, a water based heat seal adhesive.  Is that available?  You apply a thin layer to the wood surface and after it dries, apply the polyspan with a covering iron, just like monocoat.  After shrinking, I then sealed the polyspan with Minwax Polycrylic.  Worked pretty well.  Also, can you get some of the SLC film?  It's a thin mylar film.  You cover just the open bays with it and then cover the whole wing with silkspan attached with polycrylic.  Just as strong as polyspan.