Re: Sourcing an Acrylic / Plexiglas / Perspex / PMMA adhesive

From: Marshall Dudley (mdudley_at_king-cart.com)
Date: 01/17/05 

Date: Mon, 17 Jan 2005 12:35:56 -0500

I always simply mix a solvent with acrylic, to form a glue with the
consistancy desired. Once dry, it is pure acrylic, so it forms joints that
are clear and darned near as strong as the original acrylic.

However I do not understand the requirement of:

Must be unaffected by long term UV or Sunlight

Since acrylic IS affected by UV and sunlight, why does just the joint have
to be not affected?

Marshall

grant wrote:

> I am currently trying to source an acrylic adhesive that fulfils the
> following requirements, and I would appreciate any product suggestions.
> Thanks
> Grant
>
> Requirements:
>
> 1/ Must be structural, very high strength
> 2/ Must be gap filling
> 3/ Must be clear after setting (no colouration, no bubbles released
> from solvent evaporation)
> 4/ Must be unaffected by long term UV or Sunlight
> 5/ Must be permanently submersible in water (fresh and sea water)
> 6/ UV setting adhesives cannot be used due to nature of the join
> 7/ Must not give off extremely noxious vapours on setting
> 8/ Must be distributed in Europe
> 9/ Easily dispensed would be appreciated
>
> The product is intended to bond cast, extruded and formed acrylic
> together in a high-pressure, load bearing application. The intention is
> to anneal the acrylic either before bonding or after. (Annealing and
> setting the adhesive at the same time - I would be interested to know
> some opinions on doing this together)
>
> I have currently tested some products, specific polymer adhesives more
> than general adhesives. I have tested:
>
> IPS Weld-On #16 - seemed to fulfil the requirements except for the
> bubbles released from the solvent. I have tried cooling the
> solvent-based adhesives to 5deg °C before use to limit the bubbles
> formed, but the result was still unsatisfactory.
>
> IPS Weld-On #40/42 - has a yellow colour tinge.
>
> A 'self-mixed' adhesive of Bostik Extrufix with acrylic cuttings
> added to form a paste - seemed to fulfil the requirements except for
> the bubbles released from the solvent.
>
> Bostik Tensol #3 - From the specification it seemed this would fulfil
> the requirements perfectly, however in use it gives of the most noxious
> vapours.

Relevant Pages

  • =?ISO-8859-1?Q?Re=3A_Tubulars_for_Brev=E9=3F?=
    ... Buff the rim base and clean with petrol or similar solvent ... Wetting the base tape with the relevant solvent first will help to ... draw in the cement. ... adhesives use acetone as the solvent, ...
    (rec.bicycles.tech)
  • Sourcing an Acrylic / Plexiglas / Perspex / PMMA adhesive
    ... I have currently tested some products, specific polymer adhesives more ... IPS Weld-On #16 - seemed to fulfil the requirements except for the ... bubbles released from the solvent. ... A 'self-mixed' adhesive of Bostik Extrufix with acrylic cuttings ...
    (sci.chem)
  • Re: Wheres a flat spot on a 01 Dash?
    ... residue with some sort of solvent, but unless you know exactly what ... me, I'd just plan on replacing whatever I stuck it to(via adhesives, ... velcro is a potential solution. ... The best alternate location is between the air vents, ...
    (rec.autos.makers.ford.mustang)
  • Sourcing an Acrylic / Plexiglas / Perspex / PMMA adhesive
    ... I have currently tested some products, specific polymer adhesives more ... IPS Weld-On #16 - seemed to fulfil the requirements except for the ... bubbles released from the solvent. ... A 'self-mixed' adhesive of Bostik Extrufix with acrylic cuttings ...
    (sci.materials)
  • Re: Sourcing an Acrylic / Plexiglas / Perspex / PMMA adhesive
    ... The acrylic to be used is UV stabilised, and hence the glue will need ... to be also (finished product location could be outside- in sunlight). ... In the past I have done exactly as you suggest, in mixing a solvent ...
    (sci.chem)