Base coat/acrylic over blockwork

[User___removed]

Got a job to price.the spec is k-rend base coat followed by 3mm topcoat.its over new blockwork.ive applied over board,insulation before so know the thickness needed.how thick should the base coat be over the blocks?
Cheers

 

[smedhead]

If the blockwork is of a decent standard I would put a 8-10mm

 

[Plasterers1StopShop]

Hi mate, British Standard states a minimum of 12mm over blockwork.

Through what I have seen and feedback we have had you can get away with 10mm but there is the risk then.

 

[User___removed]

So at that thickness a rule would probably be needed then.mesh also?
Ryan can you mail me tomorrow with prices for the systems you guys sell?

 

[plasterjfe]

it wont be the same base as you use on board/insulation anyway pal those are very hi polymer adhesives, onto block an ocr or uf base from krend will suffice at a push hp12 but not necessary.

we have done miles of it finished with a silicone texture and manufacturers are more than happy with 10mm thick base with this protective finish.

UF base with mesh at 10mm followed by a 1.5 mm texture is the bulk of what we have done on this type of work

 

[User___removed]

Thanks jfe.

 

[Plasterers1StopShop]

John is right mate. You can use Mapei's standard base-coat onto block but it isn't a cost effective way of doing it. Will send you over the details now mate.

 

[Gibbo]

Ocr and topcoat bob

 

[Gibbo]

Or just sand and cement and topcoat

 

[Ziggerbo]

Yeah yeah

 

[User___removed]

This is a old thread!!!