Thread: Busted fins
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Old 05-30-2019, 07:10 PM
UlteriorModem UlteriorModem is offline
Intermediate Rocketeer
Join Date: Sep 2015
Posts: 97

Originally Posted by Chas Russell
I cut or scrape away the glassine coating on paper tubes to get to the rougher paper to aid in the adhesive soaking in. I score the glassine slightly wider than the fin and the fillet covers the bare area. Another technique is the in method. Use a pin, drill bit, or knife blade to put small holes along the fin mounting line. I also carefully poke holes or score the balsa fins for adhesive absorption. On plywood fins I use a razor saw to cut lines in the root area to increase the area to glue.


Thanks Chas, Yea I only recently learned about the glassine coating and tricks to mitigate it. But you offer even more great ideas. My thanks.
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