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Internal limewash preparation
Matured slaked lime putty should be diluted with clean water in a bucket or other robust container until the consistency of thin cream is achieved.
Where pigment is to be used it should first be mixed with clean hot water and thoroughly slurried as this will help it mix more easily in to the bulk of the limewash.

External limewash preparation
Follow the instructions for mixing internal limewash. Then to improve the external weathering characteristics raw Linseed oil can be whisked in to the mixture at the rate of approximatley 5ml per 1litre of limewash.
Limewashes should normally be carefully sieved before use however this is unnecessary with Bleaklow Matured Slaked Lime Putty which is free of any grit or lumps.

Application of limewash should be carried out by applying at least 3 thin coats after the careful preparation of the walls. This should be accomplished by brushing down the surface to be limewashed with a stiff bristle brush to remove dust, old scaling limewash and loosely adhering particles of stone or render.
Walls should be damped down before limewash is applied and each coat should be allowed to dry for 24 hours before a subsequent coat is applied. The walls should also be carefully damped down between coats to avoid the limewash drying out too quickly.

Limewash requirements should be based on the approximate coverage rate of 19 square metres per 5 litres of limewash applied with a 100mm brush. This should then be multiplied by the number of coats required.