My method of balsa nose cone finishing

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Construct_VA
Posts: 10
Joined: Wed Nov 18, 2015 9:39 pm

My method of balsa nose cone finishing

Postby Construct_VA » Sun Dec 06, 2015 10:32 am

On my last rocket build, I had to do finishing on a balsa nose cone. The method I used was quite simple. I lightly sanded the surface, and then applied a thin layer of lightweight spackle. Once it dried, I sanded it smooth and addressed any areas of concern. After a final sanding, I applied primer and a first coat, which I wet sanded after drying. Another two coats of paint was then added. The final finish was very smooth. My only concern was the durability of the lightweight spackle but I have launched the rocket a few times and the nose cone has held up just fine.

I'll post pictures for reference soon.

dixontj
Posts: 18
Joined: Thu Nov 19, 2015 9:21 am

Re: My method of balsa nose cone finishing

Postby dixontj » Sun Dec 06, 2015 1:56 pm

Many years back I used spackle as a way to smooth fillets. The durability seemed fine, but it was on a white rocket and the spackle area yellowed badly within a year or so. Never used it again.

Construct_VA
Posts: 10
Joined: Wed Nov 18, 2015 9:39 pm

Re: My method of balsa nose cone finishing

Postby Construct_VA » Sun Dec 06, 2015 6:38 pm

dixontj wrote:Many years back I used spackle as a way to smooth fillets. The durability seemed fine, but it was on a white rocket and the spackle area yellowed badly within a year or so. Never used it again.


Interesting. I'll have to keep an eye out. It hasn't quite been a year yet since I did the balsa cone. Maybe the multiple layers of paint will prevent yellowing.

mdutch
Posts: 72
Joined: Mon Nov 09, 2015 4:01 pm

Re: My method of balsa nose cone finishing

Postby mdutch » Fri Dec 11, 2015 8:08 am

Yellowing for anything white was a big problem way back. One way to fix that was to paint a coat of Future floor wax on it. But if you brush it on your weight would increase ridiculously, it would be thinner if you used a air brush system. You just had to clean your equipment out real good to keep it working. At least white paint is better now then it use to be.
Mike Dutch
URRG & MRSI Founder
TAP L3CC
"I just want to fly ROCKETS"


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