Expanding foam....

[Dee]

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!

[Thorfun]

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

[Dee]

I could use mechanics but mbf is only 9mm thick

[SteamyTea]

Some MDF has a release agent built in, why it is not used to reinforce composite plastic parts.

[Dee]

12 hours ago, SteamyTea said:

Some MDF has a release agent built in, why it is not used to reinforce composite plastic parts.

Eh?

[SteamyTea]

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.

[TonyT]

Remember you get expanding foam and in similar sized cans adhesive

 

different products