Can interior sealers be used outside and can exterior sealers be used inside?
The interior sealers cannot be used outside. They do not provide protection against the sun as they do not contain any UV-absorbers. The exterior sealers can be used inside, but will take longer to dry than outside. It is recommended however, that interior sealers are used inside and exterior sealers outside.

Are the different interior sealers compatible, e.g. can Woodoc 20 be applied over Woodoc 10?
The different interior sealers are compatible and can be applied over each other, provided the surface is first cleaned/scrubbed well with steel wool and white spirits (mineral turpentine).

Are the different exterior sealers compatible, e.g. can Woodoc 30 be applied over Woodoc 50?
The different exterior sealers are compatible and can be applied over each other, provided the surface is first cleaned/scrubbed well with steel wool and white spirits (mineral turpentine).

Can interior sealers be applied over exterior sealers and exterior sealers over interior sealers?
This is not recommended, as the exterior products have been formulated with exterior conditions in mind and the interior products with interior conditions in mind.

Can Woodoc sealers be applied over other sealers/sanding sealers/varnishes/paints?
Because Woodoc Sealers are penetrating sealers, they ideally should be applied to bare, sanded surfaces so that they can penetrate deeply to feed the wood, bind with the wood and finally form a protective coating on the surface. Woodoc sealers may work over other varnishes, sealers, paints or sanding sealers, however we cannot guarantee its performance. In such cases make sure the underlying substrate is sound and test on a small area first.

Can other paints/varnishes/sealers be applied over Woodoc products?
Most oil paints with white spirts (mineral turpentine) as solvent can be used over Woodoc products. The best is to consult manufacturers of other products to determine whether their products can be used over Woodoc products and to test a small area first.

How to prevent furniture from becoming dull/waxy/smeary when using Woodoc Deep Penetrating Furniture Wax?
The furniture wax should be used sparingly in order to avoid a wax build-up which will cause furniture to look dull and smeary. Do not squirt the wax directly onto the surface. Dampen a cloth with wax and wipe over the surface. If a wax build-up does occur however, it is easily removed with cloth/steel wool, dampened with white spirits (mineral turpentine).

What is the difference between Woodoc Deep Penetrating Furniture Wax and Woodoc Patio/Woodoc Penetrating Weatherproof Wax?
These three products are both maintenance waxes, with the only difference the fact that Woodoc Patio and Woodoc Penetrating Weatherproof Wax contains UV absorbers and are therefore the ideal maintenance products for a sealed surface exposed to the sun. Woodoc Deep Penetrating Furniture Wax is a maintenance product for interior surfaces. While the Woodoc Patio and Woodoc Penetrating Weatherproof Wax can be used inside, the Woodoc Deep Penetrating Furniture Wax is not recommended for use outside as it has no UV protection.

Can Woodoc Deep Penetrating Furniture Wax and Woodoc Antique Wax be used on French Polish?
Yes, but if you want to maintain a high gloss on the French Polish, the surface will need to be buffed once dry. Woodoc Antique Wax is recommended as the product of choice for highly polished surfaces such as French Polish.

Can Woodoc Penetrating Weatherproof Wax be used on unsealed garden / patio furniture?
Yes, but it will provide very limited protection on unsealed surfaces and will need to be reapplied regularly. Ideally the surfaces should be sealed with a Woodoc exterior sealer and the weatherproof wax used for maintenance. It will feed the wood through the sealer and help the sealer to last longer.

How to ensure that Woodoc 5 does not create a shiny/glossy finish?
Stir the tin very well before and also during application. Do not apply in direct sunlight. Finish off with fine steel wool and Woodoc Deep Penetrating Furniture Wax for a smooth "oiled" finish after the third coat of Woodoc 5 has dried.

How to ensure that Woodoc 10 does not create a shiny/glossy finish?
Sand lightly with fine steel wool or wet/dry sand paper (>220 grit) and Woodoc Deep Penetrating Furniture Wax after the third coat had dried. This will create a lovely, smooth velvety finish.

Why does a wet glass leave watermarks, even though the surface had been sealed with a Woodoc interior sealer?
A water mark is an indication that not enough product was applied. The application of three liberal coats of sealer, according to the application instructions, will prevent water marks.

Why do the Woodoc interior sealers sometimes leave a patchy finish on wood types such as Imbuia and African Padauk?
These are oily wood types and difficult to finish. The wood should be scrubbed thoroughly with steel wool and white spirits (mineral turpentine) after sanding and before applying a Woodoc sealer. Wipe dry and apply. Do not wait for days before applying a sealer as the oil will exude again.

What causes Woodoc interior sealers peel off?
They could peel off if applied over old varnish or polish, or if there is oil in the wood, preventing penetration of the sealer. Damp wood could also cause the sealer to peel off as the moisture will prevent the sealer from penetrating into the wood.

What type of finish do you obtain with Woodoc 25?
Woodoc 25 is available in two finishes:
Satin - a satin finish (Note that with sufficient film build the product can become quite glossy).

Matt - a matt finish (Note that because a film is formed to protect the wood a small amount of sheen will be visible even with the matt finish).Woodoc 25 is available in two finishes:
Satin - a satin finish (Note that with sufficient film build the product can become quite glossy).

Matt - a matt finish (Note that because a film is formed to protect the wood a small amount of sheen will be visible even with the matt finish).Woodoc 25 is available in two finishes:
Satin - a satin finish (Note that with sufficient film build the product can become quite glossy).

Matt - a matt finish (Note that because a film is formed to protect the wood a small amount of sheen will be visible even with the matt finish).Woodoc 25 is available in two finishes:
Satin - a satin finish (Note that with sufficient film build the product can become quite glossy).

Matt - a matt finish (Note that because a film is formed to protect the wood a small amount of sheen will be visible even with the matt finish).

Can Woodoc sealers be used on veneers?
Woodoc products were formulated for use on solid wood. Veneers are glued onto a substrate and although Woodoc is compatible with most glues the solvent in the product can affect the glue, particularly the hot-melt type glues. If in doubt use the water borne W25 or Woodoc 2000 which dries very quickly. With other products such as W5, 10, 20, 25 we recommend testing on a small area first to confirm compatibility.

Why did the sealer not last well/ started to biodegrade after only a few months?
Not enough product was applied. It is very important to apply 3 proper coats. The tinted sealers, such as Woodoc 35/Woodoc 55 will last longer than their clear equivalents, Woodoc 30/Woodoc 50. The transparent iron oxides in the tinted products provide additional protection against the UV rays of the sun.

Why did the sealer peel off?
Not enough sealer applied, or there was still oil/old varnish on the surface when the sealer was applied. If the wood is damp, the sealer will also peel off.

Why did the sealer make white marks?
- The exterior sealers usually make white marks if they have become wet e.g. if it rains soon after application. If this happens, the surface will have to be sanded down again and resealed.
- Damp could also cause white marks.
- The use of thinners can also cause this problem.- The exterior sealers usually make white marks if they have become wet e.g. if it rains soon after application. If this happens, the surface will have to be sanded down again and resealed.
- Damp could also cause white marks.
- The use of thinners can also cause this problem.- The exterior sealers usually make white marks if they have become wet e.g. if it rains soon after application. If this happens, the surface will have to be sanded down again and resealed.
- Damp could also cause white marks.
- The use of thinners can also cause this problem.- The exterior sealers usually make white marks if they have become wet e.g. if it rains soon after application. If this happens, the surface will have to be sanded down again and resealed.
- Damp could also cause white marks.
- The use of thinners can also cause this problem.

Why did the sealer remain sticky and tacky long after it should have been dry?
- If the wood was wet/damp, the sealer will not dry properly and will remain sticky.
- If there was still oil in the wood, the sealer could also remain sticky.
- The use of thinners can also cause this problem.

Scrub well with steel wool and white spirits (mineral turpentine) in all three cases and apply more sealer.- If the wood was wet/damp, the sealer will not dry properly and will remain sticky.
- If there was still oil in the wood, the sealer could also remain sticky.
- The use of thinners can also cause this problem.

Scrub well with steel wool and white spirits (mineral turpentine) in all three cases and apply more sealer.- If the wood was wet/damp, the sealer will not dry properly and will remain sticky.
- If there was still oil in the wood, the sealer could also remain sticky.
- The use of thinners can also cause this problem.

Scrub well with steel wool and white spirits (mineral turpentine) in all three cases and apply more sealer.- If the wood was wet/damp, the sealer will not dry properly and will remain sticky.
- If there was still oil in the wood, the sealer could also remain sticky.
- The use of thinners can also cause this problem.

Scrub well with steel wool and white spirits (mineral turpentine) in all three cases and apply more sealer.

What is the difference between Woodoc Wood Dressing and Woodoc Exterior Sealers such as W30 and W50/W50MAT?
Woodoc Wood Dressing is more akin to a penetrating oil than a sealer. It does not form a film on the surface of the wood which makes it particularly suitable when treating rough timber and very hard woods and wood that may be exposed to very damp conditions. It has anti-mildew properties and UV-protection however it will not provide the same longevity as a film forming product such as W30, W50/W50MAT and will probably require seasonal reapplication. It is compatible with W30, W50/W50MAT which can be used to over coat to seal the wood, if desired.

Which wood types are suitable for the application of Deck Sealer?
Soft porous wood types, e.g. pine, meranti. Decks in climates with long, damp winters should be sealed on all surfaces if using Deck Sealer (See Deck Dressing or Wood Dressing as an alternative).

Which wood types are suitable for the application of Deck Dressing?
Deck Dressing was developed specifically for hard dense wood types, (e.g. balau, iroko, kari, teak, saligna, oak, mahogany) however it can be used on all wood types and gives a very natural, oiled look and feel to the wood.

What type of finish does the Deck Sealer provide?
A low-gloss finish.

Why a Deck Sealer when Woodoc 55 is also suitable for soft porous decking?
Customers wanted a low-gloss finish for decks. If customers prefer a high gloss product, they can use Woodoc 55.

Surface preparation before applying the Deck Sealer?
The same as for any Woodoc Exterior Sealer - the wood should be smooth, clean and dry (<20% humidity).

Surface preparation before applying the Deck Dressing or Wood Dressing?
Deck Dressing and Wood Dressing should be applied to clean dry wood, however it can be rough sawn timber or smooth timber - the texture of the finish will be the same as the original timber. For previously finished timber, remove/sand down any old sealer or varnish. It is very important that it be applied to an unsealed or bare surface. If the surface had been oiled/Woodoc Penetrating Weatherproof Wax had been used, scrub well with stiff brush and white spirits (mineral turpentine).

Can the Deck Sealer be used on other surfaces, besides decks?
Woodoc Deck Sealer is also suitable for window frames, doors, gates, where a low-gloss finish is required, but where Woodoc 35 is not preferred, e.g. at the coast.

What type of finish does the Woodoc Deck Dressing and Woodoc Wood Dressing provide?
The finish will vary from matt/oiled to glossy, depending on application, product build-up, and type of wood - it will look more matt on more porous wood types. It will give a glossier appearance on dense, oily wood types and will weather slightly quicker in these situations.

Surface preparation before applying the Deck Dressing or Wood Dressing?
Remove/sand down any old sealer or varnish. It is very important that it be applied to an unsealed or bare surface. If the surface had been oiled/Woodoc Penetrating Weatherproof Wax had been used, scrub well with stiff brush and white spirits (mineral turpentine). Woodoc Deck Dressing and Woodoc Wood Dressing can be applied to rough timber, i.e. it is not necessary to sand the surface of rough sawn timber.

Can the Deck Dressing or Wood Dressing be applied over old varnish/sealer which had only weathered partly or which had not been stripped off completely?
No! If the Deck Dressing or Wood Dressing is applied over old sealer/varnish it will not be able to penetrate, it may cause drying problems (Deck Dressing in particular) and when the old sealer/varnish starts coming off, the Deck Dressing or Wood Dressing will also come off.

Is the Deck Dressing a sealer or an oil?
Neither. It can be placed between an oil and a sealer. It will last longer/work better than an oil, but not as long/as well as a sealer. Because it is not a sealer, it does not form a hard layer on the surface which makes it more suitable for very hard woods and in cold/damp climates.

Is the Wood Dressing a sealer or an oil?
Neither. It can be placed between an oil and a sealer. It will last longer/work better than an oil, but not as long/as well as a sealer. Because it is not a sealer, it does not form a hard layer on the surface which makes it more suitable for very hard woods and in cold/damp climates. Wood Dressing has enhanced drying and water repellency compared to Deck Dressing.

Will Deck Dressing and Wood Dressing protect wood against moisture?
Yes, but as it wears naturally more product may need to be seasonally applied in worn areas. The area just needs to be clean and dry before applying a maintenance coat. This minimum preparation, easy-to-maintain finish is a chief benefit of using Woodoc Deck Dressing and Wood Dressing.

When should the Deck Dressing be reapplied?
When the wood starts looking worn and/or dry. This may be as much as once every 6 months, in high-traffic areas but in other areas lasts much longer. We recommend checking the deck seasonally for areas or wear. Porosity also plays a role. The more porous the wood is, the more often it will have to be applied.

What should be done before the Deck Dressing is re-applied?
Clean with a stiff brush and white spirits (mineral turpentine) before reapplication.

Drying time for Deck Dressing and Wood Dressing?
Deck Dressing can take up to 2 days per coat to dry particularly on hard woods. On soft woods drying time is shorter. Wood Dressing has faster drying properties that range from 4-24 hours depending on the wood, ventilation, temperature and wood (soft woods will dry faster).

What about fungus/mildew and fungal growth?
The Deck Dressing and Wood Dressing contain a dry film fungicide. It will combat fungal growth and still be environmentally friendly. It is a fungicide, not an insecticide and has been approved by the EU (European Union). But:

- It is not a wood preservative.
- Deck Dressing and Wood Dressing used on untreated wood will not protect from insects.
- Climatic conditions also play a role: in very humid areas, fungal growth could still be experienced occasionally.The Deck Dressing and Wood Dressing contain a dry film fungicide. It will combat fungal growth and still be environmentally friendly. It is a fungicide, not an insecticide and has been approved by the EU (European Union). But:
- It is not a wood preservative.
- Deck Dressing and Wood Dressing used on untreated wood will not protect from insects.
- Climatic conditions also play a role: in very humid areas, fungal growth could still be experienced occasionally.The Deck Dressing and Wood Dressing contain a dry film fungicide. It will combat fungal growth and still be environmentally friendly. It is a fungicide, not an insecticide and has been approved by the EU (European Union). But:
- It is not a wood preservative.
- Deck Dressing and Wood Dressing used on untreated wood will not protect from insects.
- Climatic conditions also play a role: in very humid areas, fungal growth could still be experienced occasionally.

Why does the Deck Dressing not get hard?
Because hard dense wood types expand more on a hot day than soft porous wood types, the Deck Dressing is "soft" in order to be more flexible and be able to move with the wood.

Can the Deck Dressing only be used on decks?
The Deck Dressing can also be used on window frames, doors, gates, but it will have to be done regularly. It should be used with care on garden/patio furniture as the product does not form a hard layer, so it could come off on cushions and clothes. Wood Dressing is the preferred choice on general timber softwoods and including garden furniture, planters, fences etc.

Can other Woodoc Sealers be applied over Deck Dressing?
Yes, but make sure the surface is clean. If necessary clean with a stiff brush and white spirits (mineral turpentine).

Deck Sealer, Deck Dressing and Wood Dressing are available in the same colours, but do they look the same once applied to wood?
Although the products have the same pigment composition, it will not necessarily look the same on wood. The Deck Sealer forms a film, which will give better colour development, while the Deck Dressing and Wood Dressing do not form a film and therefore a different colour appearance will be formed.

Why was no colour build-up achieved?
The final colour is built up over the three coats. No colour usually means that not enough product had been applied. If the wood is very porous, the product will penetrate a lot and lots of product would have to be applied in order to get proper colour build-up. Stir well before and during application.

Why was a streaky, uneven finish achieved?
This usually occurs when the product is not stirred well and the Colour/Stain settles at the bottom of the tin. Always stir very well before, as well as during application.

Why do the Colours bottle feel heavier than the Stain Concentrate bottle, although it is the same size?
The bottles are the same size, but not the volume of the contents. The density of the Colours is also much higher than that of the Stain Concentrates. Although the bottles are the same size, the Colours Bottle contains 25 ml of liquid and the Stain Concentrate bottle contains 20 ml of liquid.

Can the Stain Concentrates/Colours be diluted with anything other than a Woodoc Sealer?
No, they can only be used in a Woodoc sealer.

Can the Stain Concentrates/Colours/Gel Stains be applied directly to the wood?
- The Stain Concentrates and Colours have been specially formulated to be used in a Woodoc Sealer and cannot be applied directly to The wood.
- The Gel Stain is a wipe-on Stain and should therefore be applied directly to The wood.- The Stain Concentrates and Colours have been specially formulated to be used in a Woodoc Sealer and cannot be applied directly to The wood.
- The Gel Stain is a wipe-on Stain and should therefore be applied directly to The wood.

Do the Stain Concentrates/Colours perform equally well in all the Woodoc sealers?
The glossier the sealer is, the more intense the colour will be. A stain used in Woodoc 20 will therefore give a more intense colour than a stain used in Woodoc 5. Avoid using the Ebony Stain Concentrate in Woodoc 5, as it does not give good colour build-up.The glossier the sealer is, the more intense the colour will be. A stain used in Woodoc 20 will therefore give a more intense colour than a stain used in Woodoc 5. Avoid using the Ebony Stain Concentrate in Woodoc 5, as it does not give good colour build-up.

Does Gel Stain protect the wood?
No, the wood should be sealed after the application of Gel Stain.

How long after the application of Gel Stain can the wood be sealed?
The wood can be sealed one hour after the use of Gel Stain.

Which type of applicator can be used to apply Gel Stain?
A sponge or soft cloth. It works best when a little Gel Stain is put on a margarine tub lid, or similar surface, and then the sponge or cloth dipped in the gel.

How to clean applicator after the use of Gel Stain?
The best is to throw away the sponge or cloth, but it can be cleaned with water. Do not use white spirits (mineral turpentine).

Can Gel Stain be applied to sealed/varnished/oiled surfaces?
No, Gel Stain can only be applied to bare wood.

Can the wood be sealed with a sealer/varnish other than Woodoc after the use of Gel Stain?
Yes, however, please check the instruction on the product label and with the manufacturer. We strongly recommend testing over a concealed area to make sure you are happy with the results.

Is Gel Stain a water-based product?
No, Gel Stain is not a water-based product, but it contains a water-soluble solvent and is therefore compatible with water.

Can more than one bottle of Stain Concentrate/Colours be added to one litre of Woodoc sealer?
Yes, but that could retard the drying of the sealer used with the Stain/Colour. It could also influence the finish achieved. The maximum that can be added is 3 X 20 ml bottles of Stain Concentrate or 3 X 25 ml bottles of Colours into one litre of Woodoc sealer.

Is it necessary to sand between coats?
A light sanding with 220 grit or greater sand paper or fine steel wool (000 or 0000) is essential as it smoothes down the wood fibres which tend to stand up when the sealer is applied. If no sanding is done between coats, the end result will be a rough finish.

Why do the sealers thicken in the tins and how to prevent this from happening?
As the tin is opened and the sealer used, oxygen enters the tin and this causes the sealer to thicken eventually.

- Storing the tin upside down will help.
- Always close the lid in the same position by marking the tin and the lid with a marker pen.
- Do not use a hammer directly on the lid when closing, it damages the lid. Rather put a plank over the lid and hammer the plank.
- It is also a good idea to decant the remaining sealer into a smaller tin or a glass bottle with a long neck.
- Keeping the tin artificially full by adding marbles as the sealer is used, also helps to prevent the sealer from solidifying.As the tin is opened and the sealer used, oxygen enters the tin and this causes the sealer to thicken eventually.
- Storing the tin upside down will help.
- Always close the lid in the same position by marking the tin and the lid with a marker pen.
- Do not use a hammer directly on the lid when closing, it damages the lid. Rather put a plank over the lid and hammer the plank.
- It is also a good idea to decant the remaining sealer into a smaller tin or a glass bottle with a long neck.
- Keeping the tin artificially full by adding marbles as the sealer is used, also helps to prevent the sealer from solidifying.

What to do if the sealer (mostly Woodoc 10) turns to jelly in the tin?
Although it is too late to dilute it, this "jelly" can still be applied with a cloth to create a lovely velvety finish.

What to do if the sealer remains sticky after application and does not dry completely?
Clean down well with steel wool and white spirits (mineral turpentine), allow to dry and apply next coat. If it remains sticky, sand down to bare wood.

Why can the Woodoc sealer sometimes be scratched off the surface?
If the sealer can be scratched off the surface, it probably has not dried properly, in which case it should be left to dry. In cold weather the sealer will take longer to dry. There could however, be another reason: if there is any oil/wax/polish in the wood, it could be preventing the sealer from drying properly. Leave to dry, but if not dry within a day or so, scrub very well with steel wool and white spirits (mineral turpentine). If the problem continues, sand down to bare wood.

Why does one litre of Woodoc Sealer/Penetrating Wax not weigh one kg?
This has to do with the density of Woodoc products. Water, which has a density of 1 g/ml, is used as a standard measure of density and one litre of water will weigh one kg. All the Woodoc sealers and waxes have a density of less than 1 g/ml and that is why one litre of Woodoc will not weigh one kg, but slightly less, depending on the densities of the raw materials used.

Can a Woodoc sealer be used over a spirits-based stain?
This can be done, provided that the wood is left for at least two weeks so that the stain can dry completely and the solvent can evaporate completely. Then only can the Woodoc sealer be applied.

Why do the clear sealers not look clear in the tin?
This is caused by the raw materials used in the sealers. The raw materials appear coloured, but the sealers will dry to a clear finish. To test, apply sealer to a clear glass panel and leave to dry.