Sikkens Cetol BL Unitop

Sikkens Cetol BL Unitop

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Enter area above for 3 coats (Standard Protection)

Wood type and application can vary coverage

£57.80
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Sikkens Cetol BL Unitop is a water-based protective top coat for interior use. Gives a clear, non-yellowing, satin finish.

Features

  • A clear, water-based varnish for interior wood
  • Perfect for interior furniture, window frames, skirting and hand rails
  • High resistance against abrasion and impact damage
  • Offers a clear, non-yellowing, satin finish
  • Low V.O.C
Brand
Drying time
24 hrs
Coverage
Up to 16 m2 per litre
No. of coats
3
Size
2.5L
MPN
Please Select Size/Option
GTIN
Please Select Size/Option

Overview

Overview

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Sikkens Cetol BL Unitop is a water-based, acrylic and urethane varnish for use on a range of interior surfaces. It can be used to protect interior timber, previously painted surfaces, brickwork, concrete and masonry.

Perfect for interior projects such as window frames, hand-rails, skirting boards, wood panelling and cladding, doors and furniture. It can be used on bare wood or over a suitable wood stain.

Preparation

Preparation

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Ensure that surfaces to be treated are clean, dry and free from dust, dirt, wax, grease or any other surface contaminants. The moisture content of timber to be coated should not exceed 16%.

New or Bare Timber

  1. Degrease any exposed bare timber surface by wiping with a lint-free cloth dampened with methylated spirits
  2. Certain timber species contain high levels of natural wood extracts or exudates and some softwoods can be highly resinous. Any resinous deposits should be removed with a scraper
  3. Any remaining residues should be removed using a lint-free cloth dampened with methylated spirits, frequently changing the face of the cloth
  4. Allow solvent to evaporate fully before overcoating
  5. Fill any gaps or holes with a suitable wood filler

Old Timber

  1. All damaged or decayed timber must be removed, cutting at least 25mm into sound timber
  2. The use of wood hardeners is not recommend in conjunction with this product
  3. Secure any new spliced-in timber with non-ferrous screws or fixings and fill all voids surrounding the spliced-in area with a suitable filler

Application

Application

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Always do a test area before starting any project to assess product suitability and final finish. Follow the manufacturer's instructions on the tin at all times.

Do not apply if air / substrate temperatures are below 8°C or above 25°C during application or drying periods. Protect from frost until dry. Failure to meet these requirements may adversely affect the drying, visual quality and durability of the finish.

Ensure product is thoroughly stirred before and during application, otherwise sheen variations may be experienced. Sikkens Cetol BL Unitop is supplied ready for use. Do not thin.

  1. For best results, apply Cetol BL Unitop with a good quality synthetic bristle brush specifically designed for the application of waterborne products
  2. Apply the product in a full flowing coat, laying off in the direction of the wood grain, using the minimum number of brushstrokes required to produce an even finish
  3. Avoid over-brushing, as this will create brush marks and will reduce the protection afforded
  4. This initial coat should satisfy the porosity / absorption of the timber
  5. Carefully de-nib the first coat using a fine grade nylon abrasive pad or a fine grade (P240 or finer) wet or dry silicon carbide abrasive paper
  6. Remove all sanding dust before continuing
  7. Three coats of Cetol BL Unitop should be applied overall, allowing a minimum of 5 hours drying time between coats
  8. For best results, keep the interval between applications of the coats as short as possible
  9. Allow the final coat 24 hours to fully dry

Cleaning Equipment

Clean brushes and equipment immediately after use with lukewarm water. Do not use hot water.

Aftercare

Aftercare

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Maintenance

When looking to maintain the coating, take note of the current condition of the finish. Then clean, degrease and sand to create a key. If excessive damage has occurred, the surface must be abraded back to clean, bare timber, before applying 1-2 coats of Sikkens Cetol BL Unitop as required.

Please Note: If the timber has been previously stained, avoid sanding back to the underlying stain. For maintenance applications, the same drying times and application instructions are applicable.

Reviews

Reviews

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5 customer reviews
5.0/5.0
based on last 18+ months
5 stars
5
4 stars
0
3 stars
0
2 stars
0
1 star
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5/5
Excellent smooth finish
Purchased 2 unfinished internal doors. This product was highly recommended to me to seal the doors with a good finish Easy to apply and as stated in the title of my review, the finish was excellent and if I ever need to sand down the doors and redo them, this is what I would use. It's not cheap but you get what you pay for. Once dried it's solid and rock hard so as far as I'm concerned my doors are now well protected from the dog and the grandkids.
Chris Preston. , 2.5L (03/07/25)
5/5
Absolutely fantastic
Used this for a customers new oak veneered doors. It was brilliant to use, brushes on really well. Finish was the best I’ve seen, they kept their natural oak colour with a gentle sheen just enough to highlight the grain. Had a few people since compliment me on the doors finish. Can’t recommend it enough for oak doors
Sharon Rate. , 2.5L (16/04/20)
5/5
Not cheap but worth it
Leaves a very good finish, very pleased with the result. Internal doors look so much better having had this treatment.
Andy Noon. , 2.5L (22/07/18)
5/5
The Best out there
Have used this particular product ongoing over the past years. Have tried various others but I’m afraid sickens in my opinion outshines all the others. Excellent application,good lasting colour, easy to freshen up. Wouldn’t use anything else.
Elaine Harrison. , 2.5L (18/04/18)
5/5
Used on new oak bannisters and on an internal hallway door and partition
Easy to apply and highlights the wood grain brilliantly.
David Andrews. , 2.5L (21/02/18)