Maintenance Guidelines
Influence of Building Design and Weather Exposure
The maintenance period is influenced by the design of the building and its exposure to weathering. The table below provides the predicted maintenance schedule for factory-finished windows and doors coated with the above products.

Impact of Dark Colours on Maintenance
Dark colours are highly susceptible to solar heat gain, which can result in significant changes in moisture content. This can lead to higher levels of dimensional movement in the timber substrates.
Sharp Edges and Coating Thickness
Sharp edges pose a challenge as the coating film tends to have a lower thickness in these areas. Consequently, maintenance will be required sooner in these locations.
Coastal Locations and Dry Sand Blasting
Dry sand blasting is a common phenomenon in coastal locations, leading to rapid erosion of the coating film. This necessitates more frequent maintenance.
Maintenance Periods and Limitations
The maintenance periods provided are indicative and do not constitute a guarantee. It is not possible to account for every aspect of a building’s design, such as the lifespan at each compass point. However, south-facing aspects are known to deteriorate the fastest.
Considerations for Very Light Shades
For very light shades, the lifespans in the provided table may not apply. These shades often require more frequent maintenance. Additionally, the colour of the timber under lighter translucent shades can significantly change. For specific advice, please consult us.
Contact Information
For further advice, contact Anker Stuy Coatings UK at sales@ankerstuy.co.uk
Choose Your Primer
Hydrolux Baseprimer
- Excellent adhesion
- Water-based formulation
- Suitable for exterior timber
- Primer-only specification available
Hydrolux Filling Primer
- High-build filling properties
- Smooth, uniform finish
- Excellent sanding characteristics
- Suitable for most exterior joinery
Hydrolux ISO Primer
- Helps prevent tannin staining
- Ideal for oak and hardwoods
- Excellent adhesion
- Professional exterior performance
