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Expanding foam....


Dee

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Can expanding foam be used to fill and stick MDF panels to uneven plastered walls? 

I resorted to zig zagging adhesive but not convinced!

I tried it today but the foam just 'rolled' off....the panels are 600 x 1200.

What's the best technique to stick them?

Thanks!

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I bought some of this https://www.toolden.co.uk/sealants-adhesives/adhesives/grab/illbruck-pu700-multi-purpose-construction-adhesive/?gad_source=1

 

seems pretty solid. used it to stick timber to my screed that has ufh pipes in it as I didn't want to screw into the screed. 

 

can't you use fixings though? would be rock solid with mechanical fixings

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18 minutes ago, Dee said:

Eh?

Many materials have chemicals added to them to help the manufacturing process.

Some MDF have a resin that bonds to timber, but rejects water.  This is because one end of the molecule hydrophobic (non polar), this rejects water (polar), and other materials that have the same electrical charge.

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