XPS insulation board adhesive

[Marnhullman]

I have some UltraTile ProRapid RS Rapid adhesive. Can I use it on XPS insulation boards? The information on the pack doesn't say whether it's suitable i.e. whether it will adhere to polystyrene.

I know Soudal make an adhesive specifically for polystyrene boards but there's nothing to indicate whether it can be used under an electric heat map. Ultra Tile ProRapid can be used under a heat mat so I'd like to use what I've got rather than having to shell out for another product!

Thanks

 

[noseall]

I have some UltraTile ProRapid RS Rapid adhesive. Can I use it on XPS insulation boards? The information on the pack doesn't say whether it's suitable i.e. whether it will adhere to polystyrene.

I know Soudal make an adhesive specifically for polystyrene boards but there's nothing to indicate whether it can be used under an electric heat map. Ultra Tile ProRapid can be used under a heat mat so I'd like to use what I've got rather than having to shell out for another product!

Thanks

You wish to tile directly onto polystyrene?

 

[mrrusty]

I would look on the manufacturers website and use what is recommended. Anything else is a gamble.