# Hardening balsa, ply, and tubes.

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#### DinoAP

##### Well-Known Member
Hey guys just wanted to share. I know we use CA to harden softer materials but I have something else for you to try. I use a product called "Wood Hardener" from Minwax to harden BT ends and to strengthen ply and balsa. Works great, drys super fast, and you don't need to use sanding sealer on your fins any more.

I use it on spiral wound tubes in fireworks making and it gives those tubes about 90% the strength of convolute wound tubes.

#### dhbarr

JB Weld WH is about $2 cheaper / pint. I used several coats on my ultralight Dig Baddy after removing the glassine layer. Thin CA is still the way to go for Balsa edges. #### Nytrunner ##### Pop lugs, not drugs TRF Supporter JB Weld WH is about$2 cheaper / pint.

I used several coats on my ultralight Dig Baddy after removing the glassine layer.

Thin CA is still the way to go for Balsa edges.
That's a new one on me. I'll have to figure out if its cheaper to ship vs picking up minwax at home depot.

#### dcullen

##### Well-Known Member
That's a new one on me. I'll have to figure out if its cheaper to ship vs picking up minwax at home depot.
I suspect that these are the same stuff. I'll try the JB when I run out of the Minwax. It does work really well