Painting External Plastering

[Hugh Rynal]

Is there a product available to seal up minor cracks (shrinkage and movement ones) in external plaster before repainting ?

 

[jbonding]

Is there a product available to seal up minor cracks (shrinkage and movement ones) in external plaster before repainting ?

there was a guy who used to post on here who invented an external paint that stops cracks but unfortunetly doesnt post anymore (see the last post) poor Freddie //www.diynot.com/forums/viewtopic.php?t=56027&postdays=0&postorder=asc&start=0

 

[JohnD]

Urinal, when you say external plaster, do you mean lime plaster? Or cement render?

Lime plaster will need a different paint system (like limewash perhaps) and is soft and expected to crack a bit.

 

[Hugh Rynal]

It's cement render. The plaster cracking is in the usual stress places, e.g. 45 degree angles from windows and door openings.

 

[Third_Eye]

I have seen some painters use a product that apparently seals exterior cracks but it causes flashing through the finish paint that looks terrible. However is your walls flat ?