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Litho

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David Holland 224/11/2020 17:09:08
254 forum posts
28 photos

Can anyone help, please, with the best adhesive for litho to balsa? Does cyano wokk or epoxy?

Thanks, David

Former Member24/11/2020 17:11:48
380 forum posts

[This posting has been removed]

Martian24/11/2020 18:46:41
2700 forum posts
1270 photos

I used contact adhesive for large areas tricky to line up but very effective

Engine Doctor24/11/2020 19:34:12
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2724 forum posts
44 photos

I have always used contact adhesives like UHU . You have to apply the adhesive evenly though as any dragged adhesive , through over spreading , can show through when the litho is rubbed down. Never tried epoxy.

Alan Gorham_24/11/2020 20:56:33
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1415 forum posts
147 photos

Can't remember where but I read a recommendation to use a strong spray on contact adhesive to ensure a thin even layer of glue.

I wanted to put on large litho panels over light balsa sheeting.

I used this and I think I would use it again certainly in preference to epoxy which I would find messy and laborious to apply as well as heavy and expensive.

la-1000881747267:kwd-1000881747267:cmp-757438067:adg-44804851896:crv-207912323492id-87-1124:dev-m&gclid=CjwKCAiA-_L9BRBQEiwA-bm5fnIV60wyNP_vSjkt5tCqONSm4SP6ShiFRHI64rhflxty0N2dx3LsyRoCKvwQAvD_BwE">Link

Edited By Alan Gorham_ on 24/11/2020 20:57:20

Jon - Laser Engines25/11/2020 08:13:46
5758 forum posts
275 photos
Posted by Engine Doctor on 24/11/2020 19:34:12:

I have always used contact adhesives like UHU . You have to apply the adhesive evenly though as any dragged adhesive , through over spreading , can show through when the litho is rubbed down. Never tried epoxy.

I have use impact contact adhesive and had similar results. Nasty stuff but it clings like..err, chocolate to a blanket.

Andy Joyce25/11/2020 11:24:26
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426 forum posts
69 photos

Don't use UHU POR as I did on one of my models as the litho is now lifting due to engine oil/fuel ingress.

Engine Doctor25/11/2020 12:54:42
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2724 forum posts
44 photos

Ah ! yes forgot to add. I seal edges when happy with either some cyano or Clearcote as most fuels will attack contact adhesives . I dont use the UHU POR either as its not as strong as the ordinary UHU,

Edited By Engine Doctor on 25/11/2020 12:56:47

David Holland 225/11/2020 14:34:00
254 forum posts
28 photos

Cheers, Guys, went with contact adhesive and it worked a treat. It would have been difficult without an instant grab adhesive as the component is a shape that would be almost impossible to clamp in place while curing took place.

I'm all electric so fuel ingress won't be an issue but I think a drop of cyano wicked round the edges would be a plan.

Thanks,

David

Doctor Chinnery25/11/2020 14:52:58
137 forum posts

A bit late to the party - but what about Methyl Methacrylate ?

David Holland 225/11/2020 14:55:33
254 forum posts
28 photos

What's that, Doc, never come across it?

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