The first coat of stucco applied to a stucco base in multiple-coat work, usually cross-raked or scratched to form a mechanical key for succeeding brown coat.
The first coat of plaster or stucco.
The first coat of plaster, which is scratched to form a bond for a second coat.
The first coat of plaster. It is scratched to provide a good bond for the next coat.
A mixture of Portland cement, sand and water applied as the first coat of mortar on a wall or ceiling. Its surface usually is scratched or roughened so that it will bond properly with subsequent coats of mortar.
A base coat used to improve the rigidity and/or bonding of subsequent topcoats. A scratch coat is often required for vertical stamped concrete.
The first coat of stucco or plaster which is roughened to hold the second coat.
The first coat of mortar or plaster, roughened (scratch) so the next coat will stock to it. Home Improvement Encyclopedia
The first coat of mortar applied against the block or substrate. The mortar should be scored before the material dries so the second coat will bond tightly to it.
An initial coat of plaster that is literally scratched while still wet so that the finish coat will bond properly.