Sikkens Cetol BL Unitop

A colourless, water-borne, protective varnish providing a satin finish
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Key benefits
  • Excellent resistance to knocks, spillages and abrasion
  • Non-yellowing
  • Low odour
  • Quick drying
Technical Information
  • Finish Satin
  • Coverage 12-18 m²/L
  • Drying Time 2 hours
  • Recoatable 5 hours
  • Composition Water-based
Product Features
  • Durable

Product Description

Cetol BL Unitop is a water-borne acrylic urethane varnish which provides a satin finish.

Application Description

Conditions: Do not apply when air/substrate temperatures are below 8ºC or above 25ºC during application or drying periods. Protect from frost until dry. Failure to meet these requirements may adversely affect the drying, visual quality and durabilityof the finish. Ensure product is thoroughly stirred before and during application, otherwise sheen variations may be experienced.Cetol BL Unitop is supplied ready for use. Do not thin.
For best results use a good quality synthetic-fibre brush specifically designed for the application of water-borne products. Apply the product in a full flowing coat, laying off in the direction of the grain, using the minimum number of brushstrokes
required to produce an even finish. Avoid overbrushing, which creates brushmarks and will reduce the protection afforded.
This initial coat should satisfy the porosity/absorption of the timber. Carefully denib the first coat using a fine grade nylon abrasive pad or a fine grade (P240 or finer) wet or dry silicon carbide abrasive paper. Remove all dust. Three coats of Cetol BL Decor should be applied, allowing a minimum of 5 hours drying time between coats or a two coat application onto a coloured coating such as Cetol BL Decor for protection.

Technical & Safety Documentation

Tips & Advice

  • 1. Preparing the Surfaces
    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” as they are not always fully effective in “sealing in” resin. In addition, 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,particularly on external areas, as they cannot cope with timber movement and work loose. Only use non-rusting screws, nails and fixings.New timber : Degrease any exposed bare timber surface by wiping with a cloth dampened with a suitable solvent. Certain timber species contain high levels of natural wood extractives or exudates and some softwood can be highly resinous. Resinous deposits should be removed with a scraper. Any remaining residues should be removed using a lint-free cloth dampened with suitablesolvent, frequently changing the face of the cloth. Allow solvent to evaporate fully before overcoating. The use of both eye and hand protection is strongly advised.All damaged or decayed timber must be removed and replaced, cutting at least 25mm into sound timber. Secure any new spliced-in timber with non-ferrous fixings and fill all voids surrounding the spliced-in area with a suitable repair compound such as Dry-Flex from Repair Care.
  • 2. Cleaning
    Brushes should be cleaned immediately after use with warm, soapy water, and then rinsed thoroughly with clean water. If spilled Cetol BL Unitop may be reoved immediately while still wet using warm,soapy water
  • 3. Storing
    Store in cool, dry, frost-free conditions
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