Evostick Serious Glue

Are there two types of polyurethane glue then? I use Titebond Polyurethane Glue from Axminster and it does foam. The spec says; "Polyurethane glues cure by moisture and an effervescence is a by-product of this".

Is there one that doesn't foam?

Titebond polyurethane is a seriously good glue for all sorts of things, not just wood.

I used Araldite all my working life and in my opinion nothing else comes near.

Screwfix sells small quantities :

Presumably rubber resin is a solvent glue? Or is it a mix of 2 types? Whatever it is, its pretty tough and flexible.

NT

Hello. As we're writing about glues, what glue would be most suitable for sticking memory foam to memory foam? I have a "structured" mattress topper made of memory foam. The structuring consists of different size square areas of foam. To make the squares, _grooves_ have been cut into the foam. I've recently noticed that on a few of these grooves (at the bottom), the foam is beginning to break apart. This is only slight at the moment. I would like to glue narrow strips of foam to the bottom of the grooves, in the hope that the small damage present now will not _spread_.

Thanks in advance.

Sylvain.