Table (2) Comparison of technical data of unknown plaster with
common type of plaster moulding and plaster casting.
Carefully take the rule from the surface, removing surplus plaster with
Carefully take the rule away from the surface, removing the surplus plaster with
If they are, just fill any holes in the plaster with
filler or fresh plaster.
Most are round-pole post and beam construction with thick walls of straw-clay in fill or lath and plaster with
blown-in cellulose insulation.
Next a "scratch coat" (a rough plaster with
the texture of sandpaper) is applied, followed by a final coat of smooth plaster.
Undercut the old plaster with
a can opener so that its edge slants back toward the lath and the new plaster can "key" or lock in behind existing plaster.