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When we stucco on
block, you
can see the block joints.
How do you kill the block joints ?
Rule one: Don't rod a block wall up. Only side to side.
You can't see the block joints on any of
my jobs.
Period.
This is not a do it yourself material. Plastering should be only done
by qualified
craftsmen.
After scratch coat sets hard(overnight for stucco),
brown coat may be applied.
Screeds are set with a rod or a string line. Wall is filled in between
the screeds. Wall is then rodded side-to-side. If not, you will see
the block
joints.
I learned this trade under old people who were real demanding.
For years, I worked on schools and hospitals, plastering on block.
Plaster on
block has been a preferred choice for years on walls that have to
withstand
abuse.
The scratch coat on plaster must set hard (about 2-4 hours),
before apllying the brown, or double up coat. On stucco we always
let the scratch coat set overnight.I had the good
fortune of working
under old plasterers that taught me right.
Plaster is about the same as cement mortar (stucco mortar), except
cement has a mind of it's own.
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