Ensure the timber surface is suitably prepared, clean and dry, with dust, dirt, wax and grease removed, and allowed to acclimatise to its end-use environment. The moisture content should not exceed 14% prior to coating We do not recommend the use of “knotting agents” with translucent finishes as they are not always fully effective in “sealing in” resin,
the presence of knots is often highlighted and adhesion of coatings can be impaired.
When filling, be sure to use fillers specifically designed for use with timber . General or all purpose fillers are not suitable as they cannot cope with timber movement and work loose.
New timber : Where a superficial application of preservative to softwood and hardwood is deemed necessary, such as timbers in Durability Class 3 or lower, use Cuprinol Wood Preserver Clear (BP). For Class 4 (in ground contact) and 5 (marine) use pre-treated wood specific to these conditions. Preservative pre-treatments must be fully dry before the application of the Cetol TSI Satin Plus. Do not use on substrates which have had water-repellent preservative pre-treatments applied. Where possible, at least the first coat should be applied all round prior to fixing. Only use non-ferrous screws, nails and fixings.