Plasterboard adhesive

[steviecat]

Hi

Just dot and dabbing boards onto brick wall in garage. Looked at online tutorials and started mixing. The problem is the mix. Using Knauf adhesive and no instructions on mix ratio. Started mixing it and what a hard job. using a whisk with 18V cordless and the cordless struggled. Eventually got a mix together that would hold and by this time I was already knackered - it weighs a tonne! Got one board up! and just washed up my tools which took ages and gave up.

i appreciate its a hard physical job but is there anything to make it easier, Do I need a better whisk. What is best mix for a 25kg bag? Am I just too soft?!

Thanks

Steve.

 

[PrenticeBoyofDerry]

Cordless mixer whisk will not deal with it. You need an electrical whisk/paddle. You can hire them.
The mix ratio per 25kg bag is recommended at 15.5l, a mix should have a 3 hour working time, but I strongly recommend that any mix is used within 45mins.

Prepare the walls, so they are free of dust and debris, generally no primer is required, but damping down the walls will not harm anything.

If you are using 2400mm x 1200mm boards, you will not get much left over from a 25kg bag for 2 boards

 

[garyo]

I use an old electric drill with a £5 paddle from screwfix fire my occasional mixing needs and it works well. Definitely wouldnt fancy it with a cordless.