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Sikkens Cetol Filter 7
A highly durable, medium build, solvent-borne exterior woodstain that provides a highly translucent, UV resistant, semi-gloss finish.
Features
- Medium build, solvent-borne woodstain for exterior joinery
- Perfect for soft and hardwood joinery, windows and doors
- Long lasting protection from weathering and UV damage
- Flexible coating prevents cracking and flaking
- Dries to a translucent, semi-gloss finish
- High V.O.C
Brand
Drying time
16 hrs
Coverage
Up to 16 m2 per litre
No. of coats
2
Size
1L
2.5L
5L
MPN
Please Select Size/Option
GTIN
Please Select Size/Option
Overview
Sikkens Cetol Filter 7 is a medium build, solvent-based woodstain for doors, windows and other exterior joinery. Formulated with UV absorbers to give wood superior protection against sun damage. Being moisture vapour permeable, it allows water vapour to escape and not get trapped under the surface.
Sikkens Cetol Filter 7 was previously called Sikkens Cetol Filter 7 Plus. The formulation has remained unchanged.
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Preparation
Preparation
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Timber surfaces to be treated must be clean, dry and free from dust, dirt, wax and grease. The wood should be allowed to acclimatise to its end-use environment before treating. The moisture content of the timber should not exceed 18% prior to coating.
Joinery should be treated with a base coat of Sikkens Cetol HLS Plus which Sikkens state will provide 5 years of protection from weathering.
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. This product is ready to use straight from the tin and does not require thinning.
Only apply at temperatures ranging between 5°C and 35°C and a relative humidity of no more than 85%. Stir thoroughly before and periodically during application to ensure a consistent finish.
- Apply 2 coats of Sikkens Cetol Filter 7
- For best results, it is necessary to keep the interval between application of these coats as short as possible
- Allow to dry fully before application of the next coat
Aftercare
Aftercare
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Maintenance
The finish should be inspected yearly to check for any surface defects or damage as a result of weathering. If required, areas of wear or damage can be rectified by carrying out the following.
- If required, fill any holes with a suitable wood filler
- Colour any defective areas after preparation with the matching colour of Sikkens Cetol HLS Plus
- Re-apply one coat of Sikkens Cetol Filter 7
F.A.Q.
F.A.Q.
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Can Filter 7 be used as a stand-alone product?
I have received two tins of Sikkens but one looks different to the other. One is orange and one has a purple band on. Are they safe to use?
No, the Sikkens Cetol HLS Plus must be applied to bare wood first. If this product is applied directly to bare wood, then it will appear patchy as it is a higher build wood stain.
I have received two tins of Sikkens but one looks different to the other. One is orange and one has a purple band on. Are they safe to use?
Absolutely, in 2024 Sikkens have rebrand this product. They have assured us that the formula inside the tins are identical.
Datasheets
Datasheets
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Reviews
Reviews
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339 customer reviews
5.0/5.0
based on last 18+ months
5 stars
311
4 stars
25
3 stars
2
2 stars
0
1 star
1
An excellent product, when used with Sikkens cetol HLS, on new wood
I used Sikkens cetol HLS and Cetol Filter 7... on a new build in 1994, all external wood was treated on all sufaces inside and out, before fitting, facia and soffit boards are still in excellent condition...@2026...
P .Arscott. Dark Oak (009) D9.54.32T, 1L (07/08/26)
Great stuff
Does what it says on the tin
Carl Davison. Dark Oak (009) D9.54.32T, 1L (06/08/26)
LAST COAT LASTED JUST UNDER 7 YEARS
I’ve used this product before and bought it again because I know how good it is. Last time I used it was just under 7 years ago. I think it’s guaranteed to last 5 so it lasted longer. This time I sanded/scraped all the old paint back to bare wood. I gave the wood 2 coats of the recommended ( Sikkens Cetol HLS Plus ) and then 2 coats of
( Sikkens Cetol Filter 7 ) I must say it looks beautiful and I know it will last 5 plus years. Also, the side of the lodge that was painted is in the sun for around 7 hours during the summer days.
Mr John Walcher. Mahogany (045) B8.29.15T, 5L (05/08/26)
Good for treating exterior hard wood window frames
Used this product to treat external window frames - provides good protection for a number of years.
BJA. Walnut (010) C6.16.11T, 1L (01/08/26)
Long lasting protection
I have been using this Sikkens product for many years to protect our wooden swing seat. Hopefully it will last for many more years.
Mike Gower. Teak (085) D5.51.29T, 1L (01/08/26)
Good product, easy to apply
Having used this for a number of years I don’t think there is a better product for the job.
Eric Dower. Light Oak (006) E5.58.44T, 2.5L (30/07/26)
Fantastic product, great results
Love the way this product goes down, really nice to apply. Colour from the chart is not wholly accurate but I suppose it depends a lot on the material it's being applied to. Great results and worth the money.
Kerry Morgan. Q7.03.30T, 1L (27/07/26)
Very high quality product
One of the best wood stains on the market in the uk
Andrew Parkes Painter & Decorator. Light Oak (006) E5.58.44T, 5L (26/07/26)
Only just used it,but looks really good
Easy to use,covers well,brought a tired exterior door back to life
Lynn Ryding. Light Oak (006) E5.58.44T, 1L (12/07/26)
Excellent
Good coverage. Not cheap but “does the business”.
Ian Collinge. Teak (085) D5.51.29T, 5L (03/07/26)
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