MS-Polymer vs Methacrylates

[gary1]

Morning Everyone,
I'm just after some opinions on what is considered the stronger of the two adhesive types, the first one is called an MS-polymer as opposed to a Methacrylate type of adhesive. They are both supposed to be water proof, I have never heard of a MS-Polymer before. I will be bonding Alluminium to an epoxy base just wondering which would be the better of the two as both make claims to being a permanent type of adhesive and claim to have structual strength properties. The MS- polymer type just sounds as though it may be a bit easier to work with. Anyhelp on this would be greatly appreciated.
Thank's
Gary

[kach22i]

I know nothing about the products you have listed.

I have always trusted my own observations over those of strangers and sales people/literature.

Acquire samples of both and test them, whack them, freeze them, heat them in the oven to 150 degrees.

Then when you read a little something, a light may go off and you will be able to read in between the lines, and cut through the fog.

Just my two cents.

[gary1]

Thank's Kach22i,
Appreciate the advice I've heard a bit about the Methacrylate just never heard anything about the MS-Polymer type. The thing is I live in a bit of an isolated area and by the time any samples get to me Iwas hoping to have this stage of my build out of the way as I'm on a bit of a deadline to finish this boat.
Thank's Again
Gary

[Jolly Dog]

I use an MS Polymer marketed by Bostic for ahereing tempered glass to frp windshield frames.

There are a few differences between MS Polymers and Methacrylates. First, the MS Polymer does not have the smell that Methacrylates have. Some people have a resperitory sensitivity to methacrylates. Second, MS Polymers are moisture cured. It may take days for a bead to cure. The Methacrylate is a two part adhesive and dependent on its formulation may cure in less than an hour. In all likelyhood the methacrylate may require a special gun to dispense were as the MS Polymer does not. Finally you will note that when cure the MS Polyer has a much higher elongation before failure.

As for your specific application nothing beats testing.