Knauff Plasterboard Adhesive

I

Ian_Rob

New Member
Hi Everybody. I am new to this forum and a DIYer looking for a bit of advice regarding the use of Knauff Plasterboard Adhesive. I have been using it to stick 72.5mm Kingspan K118 insulated plasterboard to some walls but there is a short section of wall where I need to use a thinner board. As K118 is expensive and only available in multiples of 11, I was proposing to just use a single sheet of 50mm thick Kingspan Therma instead. Both the K118 and the Therma have a foil backing but whereas the foil on the K118 is slight ribbed it is much smoother on the Therma.

Will Knauff plasterboard adhesive satisfactorily stick Therma to a wall? Would it be best to apply PVA to the foil to help adhesion?

Once fixed it will be over-boarded with Marmox again stuck with the adhesive and the whole construction mechanically fixed to the wall with screws and washers.

Thanks.
 

Dabbing foil backed board.

Help. Gotta wall to skim that will have to be dabbed. Builder has specified 25mm celotex backed board, however, there is an area of the wall that is too proud to put on the celotex board, I've got to use foil backed 12.5mm for that bit. Question is ........will it stick? What adhesive is best...
www.plasterersforum.com
 
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