Fixing a contiboard shelf Fillers, sealants and adhesives for all types of DIY work. Help, advice and information on all aspects of this subject

[Frenchman69]

Hi There

I am hoping to attach a small shelf of contiboard to a cement window ledge.

I was hoping that " no more nails would do" , I have scored the board underneath where it meets the concrete, do you think that will work.

[plumbbob]

Grab adhesives will work fine.

Any problem will not be with it adhering to the the contiboard though, but rather the concrete. If it is powdery or dry, the adhesive may not stick.

Seal the concrete first with PVA or some other such stabiliser to make sure the adhesive has a sound surface to cling to.

[Frenchman69]

Thanks for reply, did exactly that, pva first