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EXTERIOR
What is the best Sikkens product to use on my previously uncoated Cedar front or garage door?
The most commonly used system for exterior dressed timber is 1 coat of Cetol HLSe followed by 2 coats of Cetol Filter 7 plus. Click here for application guide
How long will my Sikkens coating last?
There are a number of factors which determine the durability of any coating.
1. The species of timber. Some species are more stable than others.
2. The cut of the timber. Quarter sawn timber is much more stable than crown cut timber and should be used in sunny exposed situations wherever possible.
3. The aspect. A north facing structure will suffer much more UV damage than a south facing structure.
4. The situation. An exposed building site close to the sea will be subjected to the abrasive effects of salt laden winds more so than a sheltered inland site.
In the worst case the coating will require a maintenance coat after 1 year. In the best case a maintenance coat may not be required for 8 years.
My cedar door has been previously coated with a penetrating oil. Can I apply Sikkens over the old coating?
Any previous coating must be completely removed prior to coating with Sikkens. It may be possible to remove the oil residue with Jac Jay Timber Revitaliser. Click here for full details.
Dust has settled on my coating after applying the first coat. Can I sand between coats?
Sanding should be carried out with great care as any variation in coating thickness will present itself as a colour variation and may look patchy. Use only fine sandpaper such as 320 grit or finer.
I really like the look of my front door which is coated with Cetol HLSe & Cetol Filter 7 plus. Can I coat interior timber with the same system?
Cetol Filter 7 plus is a flexible coating designed to expand and contract with changes in temperature. To achieve a similar appearance indoors with better wear resistance we recommend coating with Cetol HLSe followed by Cetol TS Interior. Click here for full details.
I have stained my outdoor furniture with Cetol HLSe and the coating is still not dry after two days. What is wrong?
Teak and some other hardwoods are naturally oily. These oils retard the drying of all surface coatings and will also impair the adhesion of the coating. Oily timber should be thoroughly degreased with Sikkens Oplosser prior to coating. Click here for more information. High solids coatings such as Novatech are more susceptible to this problem.
There are 2 Sikkens systems available. Either 3 coats of Cetol HLSe or 1 coat of Cetol HLSe followed by 2 coats of Cetol Filter 7 plus. Which should I choose?
The HLSe/Filter 7 plus system has a higher gloss and film build and is the preferred system on front doors, garage doors and other joinery. We recommend the HLSe only system on weatherboards as it is easier to maintain.

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Office & Showroom, 25 Walls Rd, Penrose. 0800 SIKKENS (745 536)