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Gluing plexiglass to polyethylene blueman 08-30-2006
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Posted by blueman on August 30, 2006, 1:26 pm
I would like to glue a 7" wide extension strip of 1/8" PLEXIGLASS to a
POLYETHYLENE window well cover.

My understanding is that many/most glues do not stick well to
polyethylene.

Any suggestions on type of glue and technique for bonding PLEXIGLASS
to clear, smooth POLYETHYLENE?

Plumbing 468x60
Posted by Stubby on August 30, 2006, 2:43 pm
blueman wrote:
> I would like to glue a 7" wide extension strip of 1/8" PLEXIGLASS to a
> POLYETHYLENE window well cover.
>
> My understanding is that many/most glues do not stick well to
> polyethylene.
>
> Any suggestions on type of glue and technique for bonding PLEXIGLASS
> to clear, smooth POLYETHYLENE?

Not likely because the solvent/glue for plexiglass comes in polyethylene
squeeze bottles.

Posted by Lew Hodgett on August 30, 2006, 3:08 pm
blueman wrote:

> I would like to glue a 7" wide extension strip of 1/8" PLEXIGLASS to a
> POLYETHYLENE window well cover.
<snip>

Never going to happen, but you can still get a seal between the materials.

Rough up both surfaces with a 36 grit right angle sander to provide a
rough surface, then apply 3M 5300 caulk.

Allow 1 week to cure.

Lew

Posted by Toller on August 30, 2006, 4:27 pm

> blueman wrote:
>
> > I would like to glue a 7" wide extension strip of 1/8" PLEXIGLASS to a
> > POLYETHYLENE window well cover.
> <snip>
>
> Never going to happen, but you can still get a seal between the materials.
>
> Rough up both surfaces with a 36 grit right angle sander to provide a
> rough surface, then apply 3M 5300 caulk.
>
> Allow 1 week to cure.
>
I was going to suggest 3M 5200. It will glue anything.



Posted by Michael Daly on August 30, 2006, 3:33 pm
blueman wrote:

> Any suggestions on type of glue and technique for bonding PLEXIGLASS
> to clear, smooth POLYETHYLENE?

You're going to need an adhesive specifically designed for low surface energy
plastics. These are not cheap. There are some made by Loctite and 3M among
others. They are usually called structural adhesives and one example is 3M™
Scotch-Weld™ Structural Plastic Adhesive DP8010. You won't find this stuff in
your friendly neighbourhood hardware store - it is only available from adhesives
suppliers and a few specialty shops.

Do a web search on "polyethylene adhesive" and see what you find.

Mike

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