Rag Rolling
Rag Rolling
A two or more colour finish achieved by rolling over a wet coat of tinted glaze of a contrasting
colours with a chamois leather, clean rag or lining paper.
See: Specifications - Special Effects Tool Boxes and Broken Colour Techniques.
Raised Grain
The lifting of wood fibres from the main wood structure. Generally occurs when water based products are applied to timber surfaces.
Raking Out
Cutting out cracks or raking out deeper defects in plaster or rendering prior to repairing a surface.
RAL Colour Range
A colour range developed by the German RAL Institute. The range of colours are used as an international standards used not only for paint but many building components.
Render
Rendering on the exterior walls of building is generally used as an alternative to brick or concrete blocks.
Note. While dry render is paintable care should be taken as to the quality and nature of the work.
If in doubt regarding the condition and product suitability of a coatings to applied advice from the manufacture should be obtained.
Note: Exterior Render is made from 6 parts Sharp Sand 1part Portland Cement and one part Lime 6:1:1.
Lime is added as a plasticiser which makes it easier to work with. The addition of lime can weaken the overall strength of the render making it more porous.
In place of lime, suppliers now offer liquid plasticisers. 