RunRyder RC
 9  Topic Subscribe
WATCH  1 page 510 views POST REPLY
AlignRC Thunder Power RC
Mikerobe

Veteran

Green Turtle Cay,Abaco, Bahamas.

My Posts: All  Forum  Topic

I have a few sets of NIB non-weighted, finished, wood blades that I'd like to seal/clear coat. I thought about dipping them in epoxy and hanging to dry but I'm not sure if the epoxy will be absorbed properly before curing.
Any tips would be appreciated!

The lot I got is not a lot, but I thank God a lot for the lot I got!

09-04-2016 05:03 PM
PM  EMAIL  GALLERY  Attn:RR
Four Stroker

Elite Veteran

Atlanta

My Posts: All  Forum  Topic

1) Tim Schoonard demonstrated that heat shrink tube will lift off of the airfoil some 30 years ago. Not good.

2) A heat applied airplane covering can warp the blades during installation.

3) A sticky back stuff like shelf paper was sold by MA to cover blades. Worked OK. No 3D back then.

4) You could light weight fiberglass and paint them if you don't intend on crashing any time soon. Hard to balance.

Why are you using wood blades anyway ?

When you say "finished" what do you mean ?

09-04-2016 05:12 PM
PM  EMAIL  GALLERY  Attn:RR
ErichF

Elite Veteran

Gainesville, FL 32606

My Posts: All  Forum  Topic

If I had a nickel for every wood blade I had to build and finish back in the day.

09-04-2016 05:15 PM
PM  EMAIL  GALLERY  Attn:RR
helitom

Senior Heliman

Pine Grove, Calif, USA

My Posts: All  Forum  Topic

Cover with clear Monokote.

The older I get, the fewer things seem worth waiting in line for.

09-04-2016 05:38 PM
PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR
flycatch

Senior Heliman

Barstow, California

My Posts: All  Forum  Topic

helitom is correct.

09-04-2016 05:55 PM
PM  EMAIL  Attn:RR
Blademan

Veteran

Morehead, KY

My Posts: All  Forum  Topic

Automotive clear coat works well also

CHP

09-04-2016 06:23 PM
PM  EMAIL  GALLERY  Attn:RR
helifanatix

Veteran

Fountain Valley, CA

My Posts: All  Forum  Topic

What do you value more: Time or Money?

Spend a lot of effort on the
- monokote
- epoxy
- gel
- fiberglass

maybe it will be OK. Maybe it will Questionable

Or

Get some none wood blades, balance and go FLY

- Scott

09-04-2016 07:02 PM
PM  EMAIL  GALLERY  Attn:RR
Ghia

Senior Heliman

Abq, NM

My Posts: All  Forum  Topic

Thin 30 min epoxy with a heat gun and coat the blade with a rubber squeegee. No more covering peeling off and the epoxy is fuel proof. I still have woodies that I fly and been doing this for years.

Your not trying to preserve the blade for future generations, just a light coat to seal the wood pores. If you fly electric helis prob no need to even coat. Put trackin tape on first if you wish then balance. Works great.

A lot of the old school techniques are being forgotten it seems.

09-04-2016 07:19 PM
PM  EMAIL  Attn:RR
TMoore

rrMaster

Cookeville, TN

My Posts: All  Forum  Topic

Monokote is not a good choice. It is far too thin. Heat shrink was fine on narrow chord blades but would lift on wide chord blades as was mentioned earlier. Fascal Mylar is what you want, CA or epoxy the roots and the tips and you are done. The Fascal helps with blade torsion much better than something like. I've built hundreds of wood blades and this is my best recommendation.

Delayed Response Operator Not Engaged

09-06-2016 05:52 AM
PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR
Jabber

Heliman

Hong Kong

My Posts: All  Forum  Topic

They always used to come with Fablon to stick on, and longevity wasn't a problem as we didn't have gyros then either!

09-06-2016 10:02 AM
PM  EMAIL  Attn:RR
icanfly

Elite Veteran

ontario

My Posts: All  Forum  Topic

if the blades have any balsa they will absorb more resin than other woods used for the d-spar leading edge, point is you have to seal the wood before you go soaking them in resin of any kind, in fact a good urethane is as good as epoxy. Polyester resin is easier to sand, stinks bad, cheap, takes half hour to harden and is used on a lot of blades made today, not expensive eopxy. You could seal with polyester brush on squeegee off, sand with 220 and 320, clear urethane or lightly buff as is unless you've sanded the resin off in places observed as lighter natural wood (do edges very lightly). Basically keep the coating controlled and to a minimum before you start affecting the balance of the blades. Some people just coat with shellac a few times to seal them from moisture and be done, heck you could even just wax them assuming your not flying nitro.

Only fiber glass will stiffen them marginally.

09-07-2016 01:42 PM
PM  EMAIL  GALLERY  Attn:RR
BeltFedBrowning

Key Veteran

USA

My Posts: All  Forum  Topic

I had a heli running wood blades back in the 1990's with the white stick-on covering. The covering got damaged and the trailing edge was torn and flapping. It made a wonderful whop whop noise. Would have been nice on a scale Huey. Not advocating this, just a fun memory.

perfer et obdura; dolor hic tibi proderit olim

09-07-2016 04:27 PM
PM  EMAIL  GALLERY  Attn:RR
Doug

Elite Veteran

Port Saint Luice Florida....

My Posts: All  Forum  Topic

Back in the day we used McDonald's bumper stickers

First member of Member of Bearings Anonymous

09-07-2016 05:53 PM
PM  EMAIL  GALLERY  Attn:RR
BeltFedBrowning

Key Veteran

USA

My Posts: All  Forum  Topic

That would probably work pretty good!

perfer et obdura; dolor hic tibi proderit olim

09-07-2016 06:06 PM
PM  EMAIL  GALLERY  Attn:RR
allns47

Key Veteran

Richmond IN.

My Posts: All  Forum  Topic

the best way to finish wood blades is to walk to the nearest trash can..drop them in and your done..I'm just jokin...I always had to use to much tape to balance

09-07-2016 06:13 PM
PM  EMAIL  GALLERY  Attn:RR
BeltFedBrowning

Key Veteran

USA

My Posts: All  Forum  Topic

Especially if you start painting or glassing them. How do you do both blades the same? If you are a modeller at heart, it is a fun challenge and not just worth the effort, it is because of the effort.

perfer et obdura; dolor hic tibi proderit olim

09-07-2016 06:16 PM
PM  EMAIL  GALLERY  Attn:RR
TMoore

rrMaster

Cookeville, TN

My Posts: All  Forum  Topic

Wood blades require CG correcting. The best way to do that is to load the blades and balance before covering.

Delayed Response Operator Not Engaged

09-08-2016 02:02 AM
PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR
WATCH  1 page 510 views POST REPLY
ProModeler Scorpion Power
 Print TOPIC Advertisers 

 9  Topic Subscribe

Tuesday, December 6 - 2:04 pm - Copyright © 2000-2016 RunRyder   EMAILEnable Cookies