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technical@renderplas.co.uk

 

    Richard Harley
    Technical Manager

GLOSSARY


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

S

Scat coat

A scat coat is another term given to a rough cast finish such as pebble dash.

Scratch coat

A scratch coat is usually the first coat or render or plaster to be applied to a substrate and is scored to form a key or prepared bonding surface for a top coat or finish.

Scrim

Scrim is a mesh fabric made from materials such as fibreblass and is used between other materials to give reinforcement and stretch resistance. Scrim is often used in patches or repairs to rendered or plastered surfaces and used where non moving joints can be found.

Shadow gap

A vertical or horizontal linear recess feature on an internal wall. Often used around flush fitting doors and instead of skirting boards a clean cut linear recess is formed into the wall surface itself using a shadow gap bead clipped into plaster board.

Skim bead

Skim bead is a general term for a bead with an arris of 2mm or less and used during the plastering process to help to stregthen and form regular edges and corners.

Skimming

Skimming describes the process of applying the top coat of plaster and is done to create a smooth finished surface.

Spalling

Spalling describes render or plaster flaking or falling away in chips. It is usually caused by water ingress where materials have been mixed incorrectly, poorly applied or the surface has not been properly prepared.

Spar dash

Spar dash is a render finish where aggregates with sharp edges are applied to the surface of the render when still wet and left to form a textured finish.

Stop bead

A Stop bead is a bead used to form a strong clean edge during rendering and plastering. Generally used around window and door openings, but is also used architecturally to help to form features in render and plaster

Stucco

Stucco is a smooth render finish.