Description
Sadolin Extra Durable Wood Stain is manufactured for all softwood and hardwood apart from decking or areas subject to heavy wear/abrasion. It is particularly suitable for joinery such as doors and windows, where its flexible nature and water repellence provide long lasting protection. For optimum durability on new wood, the use of Sadolin Classic as a base coat is recommended, particularly when treating hardwood.
Preparation
General
- Timber surfaces must be suitably prepared, clean, sound and dry.
- The moisture content should not exceed 18% prior to coating.
- Resinous deposits should be removed.
- Degrease any exposed bare timber surface by wiping with a cloth dampened with methylated spirits.
- “Knotting agents” should not be used with Sadolin translucent woodstain systems.
- Fillers specifically designed for use with timber such as the Sadolin woodfillers should be used for making good any minor surface defects, imperfections and open joints etc. General or All Purpose fillers are not suitable.
- Only use non – ferrous screws, nails and fixings.
New Timber
- Any non preservative treated softwood timber should be treated with two liberal coats of Sadolin Wood Preserver, paying particular attention to end grains, allowing 24 hours drying time between coats and before overcoating with 1 full coat of Sadolin Classic.
- Where possible, the base coat should be applied all round prior to fixing.
- Base Stained Joinery
- Prepare all surfaces in accordance with the manufacturers instructions and apply one coat of Sadolin Classic and allow to dry, (refer to the Sadolin Classic page for additional information).
- Finish with 2 full coats of Sadolin Extra.
Application
Conditions
- Do not apply if there is a risk of rain, or when air / substrate temperatures are below 8°C or above 25°C, or if 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 drying, visual quality and durability of the finish.
Initial Procedure
- Ensure product is thoroughly stirred before and during application, otherwise sheen and colour variations may be experienced.
- Sadolin Extra Durable Wood Stain is supplied ready for use. Do not thin.
Applying the Product
- Sadolin Extra should be applied in a full flowing coat ensuring all surfaces and end grains are fully coated.
- For best results use a good quality, long-haired, soft bristle brush.
- Pay special attention to end grain, tops and bottoms of doors, and undersides of cills.
- Following surface preparation and application of Sadolin Classic in accordance with the manufacturers recommendations (refer to the Sadolin Classic page for additional information).
- Finish with two full coats of Sadolin Extra Durable Wood Stain allowing a minimum of 16-24 hours drying between coats.
Maintenance
- The need for maintenance is indicated by a lightening in colour, reduction in sheen as the coating erodes, and a loss of water repellence.
- All defective coatings should be completely removed.
- Any grey denatured exposed timber surfaces must be thoroughly sanded back to clean, bright timber.
- Organic growths must be removed and infected surfaces should be treated with a suitable fungicidal solution.
- Remaining sound surfaces should be cleaned using a warm water and mild detergent and rinsed thoroughly with clean water.
- Bare timber should be patch primed with one or more coats of Sadolin Classic in the appropriate colour to match existing colour.
- On weathered / eroded surfaces apply a further coat of Sadolin Classic overall and allow to dry.
- Finish with 1 or 2 coats of Sadolin Extra Durable Wood Stain as required.