Clean surfaces from dirt, dust and loose material with steel or scrubbing brush. Wash moldy surfaces with Tikkurila Homeenpoisto Mould Removal or Tehopesu Super Clean according to instructions. Prime surfaces at the earliest possible stage of construction with Valtti Pohjuste or Valtti Plus Base. Protect plants from splashes of priming oil.
Surfaces previously treated with semi-transparent product:
Remove loose material and wood turned grey with a scraper and/or steel brush. Clean the surface and wash with Homeenpoisto Mould Removal or Tehopesu Super Clean, if necessary. Prime bare wood surfaces with Valtti Pohjuste or Valtti Plus Base. If a clear possibly gloss film remains on the wood surface, remove it or at least sand carefully.
Make sure that timber cladding, weatherboarding and timber glazing beads, etc. are adequately fastened with non-corrosive fixings. Valtti Akvacolor is not recommended for use with linseed oil putty. Good quality non-setting glazing compounds which form a protective skin should be used in accordance with manufacturers instructions. Particular attention with regards to preparation should be given to wood such as Oak, Teak, Cedar, Douglas Fir, Mahogany and Idigbo, etc. which contain oil and water soluble tannin which may impair the drying, hardening or adhesion of surface coatings.