Primer G on Chipboard

[victorianreno]

Hi - I'm laying hardiebacker on top of green chipboard. I have a load of Mapei Primer G left over so can I use this to prime the chipboard before I put down adhesive and screw on the hardiebacker?

I've heard acrylic or sbr is best suited..but primer G does say it can be used on chipboard..

 

[Dave]

Just wipe floor over with a sponge to remove dust. Then adhesive and screw boards down. 👍