Plasterers Scratch Tool 7 Prongs

The Faithfull Plasterer’s Scratching Tool is designed for use in plastering and rendering applications where a mechanical key is required between coats.

The tool is used to score the surface of a freshly applied base coat, forming a textured finish that assists the bond of subsequent plaster or render layers.

It is intended for manual use by plasterers during the application of multi-coat systems.

Function and Application

In multi-coat plastering and rendering, the base coat is scratched before it has fully cured. This process creates a series of grooves in the surface, increasing the surface profile to promote adhesion of the next coat.

The tool is drawn across the surface of the applied plaster or render to produce consistent scoring. The depth and spacing of the scratches will depend on the pressure applied and the condition of the base coat at the time of use.

Suitable for scratching backing coats of plaster or render in preparation for subsequent finishing coats.

Use and Handling

The tool should be used once the base coat has firmed sufficiently to hold a defined scratch without tearing or excessive displacement.

The operator should apply even pressure and consistent passes to achieve a uniform key across the treated area.

Safe handling practices should be followed during use. The tool should be cleaned after use to remove residual plaster or render material.

Technical Data