Just tried a mock-up. Salvaged mouth blow valves from inflatable vynil
ducks, rings and the like (toys for kids), left a patch as large as a CD
aroud the valve. Drew a sponson tapered in the ends to fold along centerline
and glue on borders (on glue line only, or weld, better. Welding here costs
1.5 usd per metre) Then put a hole thorugh pvc fabric from inside prior to
glueing to make the valve stick out. glued with pvc glue (henkel's
transparent diluted with acetone. Backed with another larger vynil patch to
improve air tightness along border of patch 1.
Fold and weld outside seam.
What I miss is where to get those neat tube+ mouth valve seen on commercial
sponsons.
Thanks for any info in this direction, Stefano.
----- Original Message -----
From: William Samson <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, January 08, 2001 3:55 PM
Subject: [foldingboats] Re: PVC glue
> Stephano says he is having problems gluing PVC
> material. I've successfully used Bostik 3206
> polyurethane adhesive, which works just like an impact
> adhesive. This glue is made specifically for
> PVC-coated polyester cloth and is widely used by firms
> who make trailer covers.
>
> I've also used it to glue Velcro to PVC cloth.
>
> Also - a question. Has anyone successfully made their
> own inflatable sponsons? If so, how did they do it?
>
> Bill
>
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