Sadolin Stainable Wood Filler

Sadolin Stainable Wood Filler is perfect for wood imperfections, particularly corner work and holes up to 50mm deep, such as knots. 350ml container contains base and hardener. Specially formulated to accept woodstains, providing the perfect match to your wood or woodstain.

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Timber surfaces to be filled must be suitably prepared, clean, sound and dry. The moisture content should not exceed 18% prior to filling.

1. Any existing paints, stains or varnishes must be totally removed from the area to be filled
2. Take special precautions during the surface preparation of pre-1960's painted surfaces as they may contain harmful lead
3. Timber exhibiting signs of decay must be removed and cut back 25mm into sound material, and made good where appropriate
4. When filling large areas, consideration should be given to splicing in new timber sections
5. After cutting back, treat the area to be repaired (and any new timber) with Sadolin Quick Drying Wood Preserver and allow to fully dry prior to repairing with Sadolin Stainable Woodfiller
6. Timber treated with Sadolin Quick Drying Wood Preserver can be repaired after 24 hours
7. Extra adhesion may be achieved by inserting clean, non-ferrous nails or screws to just below the level of the finished surface, and then filling with Sadolin Stainable Woodfiller

Please Note: Failure to provide a suitable substrate may result in poor adhesion and performance of the repair. When used in accordance with the manufacturer's recommendations, and the repaired area is sanded flush, perfect results are achievable.

Always do a small test area before beginning any project and follow the manufacturer's instructions on the container at all times.

Do not apply if there is a risk of rain, or when air / substrate temperatures are below 8°C or the relative humidity is above 80% during application or drying periods. Protect from frost and rain until dry. Failure to meet these requirements may adversely affect the curing, visual quality and durability of the filler.

Sadolin Stainable Wood Filler is supplied in two parts - a can of filler and a tube of hardener. Both components must be combined for use.

1. Place filler about the size of a golf ball onto a suitable clean, non-porous board, then squeeze about 3.5cm of the hardener from the tube and mix with the filler
2. Ensure the two components are thoroughly blended together to a consistent colour
3. Once mixed, the workable life is approximately 5 minutes at 20°C
4. At higher temperatures this time will be reduced, therefore only mix a sufficient amount for immediate requirements
5. For repair work, the mixed material should be applied with a plastic spatula or similar implement, and left sufficiently proud of the surface to allow for subsequent machining or sanding
6. Ensure that the filler is carefully forced into the area to be filled in order that all the air is forced out and good contact is made between the filler and the timber
7. Using masking tape to protect the area surrounding the repair will help prevent leaving a 'halo' effect on bare wood and make it easier to isolate the working area
8. Ensure the tape is removed immediately after you have completed the fill whilst the product is still workable
9. For deep fills it may be necessary to build up the product in layers
10. Excess filler should be removed after the initial 5 minute curing period using a sharp chisel
11. During the curing process heat will be generated but this does not affect the repair
12. Allow a minimum of 15 minutes before sanding, however this will depend on the thickness of the filler applied
13. Coatings can be applied after 30 minutes drying time when the filler will have achieved full hardness
14. The surface of the filler must be lightly abraded to improve the uptake of wood stains or dyes

Cleaning Equipment

Immediately remove / scrape off excess filler from spatulas and filling knives and clean with cellulose thinners.

Once dry, wood can be overcoated with a suitable top coat from the Sadolin range.

When overcoating with translucent products, as with all such products, the final appearance is dependent on a number of factors including the timber species, the relative absorbency of the timber and the filler, and the presence of any existing coating.

If the timber that is filled is much darker than the filler, e.g. walnut, mahogany or teak, or if the surrounding timber has been stained, apply a little stain to the filled surface using an artist's brush, to bring it to a similar colour before re-staining or varnishing the whole surface. Certain timbers will absorb to a greater extent than the filler, and 2 or 3 applications of stain to the filled area may be needed to achieve the desired result.

Always carry out a test application, especially when very accurate colour matching is of importance. It is essential to ensure that the colour match between the substrate and filler is acceptable in terms of colour, density and workmanship before overcoating with clear or translucent finishing coats.

In exterior locations the decorative protective finish should be maintained in the usual way, as required. If the timber is left unprotected it will move excessively and this may result in a breakdown of the bond between the timber and filler.