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Best glue to fix plastic mouldings to balsa wood?

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martin collins 124/05/2020 15:09:52
429 forum posts
199 photos

As per title i have some plastic cowl moulded parts to glue to the balsa fuselage, what would be the best adhesive to make sure i get a strong long lasting bond......

john stones 124/05/2020 15:33:38
11590 forum posts
1517 photos

Cyano will stick pretty much anything, might not be the best choice though, will the parts get handled in use, they dummy exhausts or similar ?

flight124/05/2020 15:39:07
736 forum posts
37 photos

canopy clue works the best formula 560 dries clear and has a bit of flex in it , so takes little knocks better

martin collins 124/05/2020 15:40:02
429 forum posts
199 photos

Parts are cowl cheeks which glue to the fuselage on my 1/4 scale Cassutt, cyano out for me, i can`t use the stuff it gives me breathing problems.......

john stones 124/05/2020 15:47:16
11590 forum posts
1517 photos

They already painted Martin or is there work left after gluing ? Been impressed with the Brown Gorilla glue myself, it does expand though, canopy glue I've used that's good, neater than epoxy for me.

Dwain Dibley.24/05/2020 16:07:21
1520 forum posts
1506 photos

I fill the parts, if they are hollow, with a balsa plug, this is where your glue choice matters, ( I use good for you, but perhaps the gorilla glue would be good.) then tape fine grit sandpaper to the place they need to fit and rub them over the surface, you now have two parts with identical surfaces, and a nice fat area to glue. Wood glue will now give you a very good bond.


ken anderson.24/05/2020 16:27:52
8710 forum posts
808 photos

hello martin, consider aquarium grade clear silicone...small tube around about £5.00 great for what you want...strong as out.

ken dept.

Engine Doctor24/05/2020 16:31:00
2530 forum posts
39 photos

Try using Modified Acrylate 2 pack adhesive . It sets very quickly and etches into most plastics and is very strong . Its quite thick so has good gap filling qualities .Ive only seen it on the net but you may find it in the UK

Mike Bell24/05/2020 17:19:06
298 forum posts
217 photos

I always use Deluxe RC Modellers glue for canopies and other plastic bits, works great, sets clear.

Brian Cooper24/05/2020 17:26:45
564 forum posts
27 photos

Another vote here for canopy glue.

leccyflyer24/05/2020 17:42:27
1511 forum posts
325 photos

I just put the plastic wheel well inserts into my Kyosho Mustang using UHU-POR as a contact adhesive, which I find works well for fixing plastic parts to foam or to balsa. I wouldn't hesitate to use RC-56 if I was going to leave it taped into place for 24 hours in accordance with the directions.

Steve J24/05/2020 18:02:38
1972 forum posts
54 photos

If you can't use medium cyano, then I would suggest varnishing the wood and using either fish tank silicon or decent double sided tape.

McG 696924/05/2020 22:11:58
3298 forum posts
1252 photos

... no need for extravagant solutions here, Martin.

If the plastic parts are hollow, Dwain's tip is a strong one.

If they are 'plain', just use a drop of Deluxe Superphatic as it will achieve a perfect solid bond between the plastic/wood parts without nasty odours or fumes... yes



Ronaldo24/05/2020 22:28:53
266 forum posts
21 photos

I use canopy glue. Needs to be held securely and given plenty time to set, at least 24hrs or longer.

Bob Cotsford25/05/2020 11:40:36
8628 forum posts
483 photos

Watch out for silicon if you are painting anything after gluing it together as paint generally doesn't like silicon. I've used brown Gorilla and canopy glue in the past, both take paint ok.

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