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Bristol Finish Bare Wood Application

By January 18, 2016 Boat Varnishing Tips

Use a mild wood cleaner to ensure the surface is free of moisture, oils & other contaminants before sanding. Sand wood as required to expose a fresh surface, with final sanding to a 240 grit profile, when dry sanded. Ensuring the wood surface is free of dust, blow down with clean, dry, filtered air & wash with a Surface Prep solution using the two-cloth method (one wet one dry). Clean, non-drycleaned rags should be used, or commercial cleaning cloths such as 3M Automotive Wipes, which are lint free.

  1. To a clean, dry surface, apply 1 coat of Bristol Finish, thinned 50% to allow necessary wood grain fill. Repeating this process, apply a second coat thinned 40%, a third coat thinned 30%, a fourth coat thinned 20%, and a fifth coat thinned 10% to assist further wood grain fill. Allow a minimum of 1 hour, but no longer than 24 hours between coats. No sanding is required if overcoating occurs within this time period. If this time is exceeded, sand to a 240 grit profile, when dry sanded. Wash with a surface Prep solution using the two-cloth method (one wet, one dry) before the next coat application.
  2. To a clean, dry surface, continue to apply a minimum 5-6 coats of Bristol Finish Traditional Amber Urethane. Thin to a maximum of 10% with acetone or Bristol Finish Tropical Reducer, if desired. More coats may be required, especially for porous & problematic timber, such as mahogany. Allow a minimum of 1 hour, but no longer than 24 hours between coats. No sanding is required if overcoating occurs within this time period.If this time is exceeded, sand to a 240 grit profile, when dry sanded. Wash with a Surface Prep solution using the two-cloth method (one wet, one dry), before the next coat application.
  3. Before application of the final finishing coat, allow a minimum of 48 hours from the previous coat, then sand the surface to a 240 grit profile, when dry sanded. Wash with a Surface Prep solution using the two-cloth method (one wet, one dry). Use tack cloths prior to painting. Apply 1-2 final coats. If a reduced gloss finish is desired, use Bristol Finish Satin Additive in the final coat. Refer to the relevant technical data sheet.