Eurocell Rounded Window Sill Cover Board Plastic Upvc Window Cill Capping - 1M Length - 180mm Width - 9mm Thickness - White

While the material is 'exterior grade UPVC' and unaffected by moisture, the description specifies it for 'internal window sills'. It is primarily designed to cover existing *internal* sills, particularly in wet indoor areas like bathrooms and kitchens, to provide a neat finish and protection.

Info needed: A strong, solvent-free grab adhesive or a high-quality silicone-based adhesive is generally recommended for securing UPVC cover boards to existing surfaces. Always check the adhesive manufacturer's recommendations for use with UPVC and the substrate material.

You can cut UPVC cover boards using a fine-toothed hand saw (like a uPVC saw or junior hacksaw) or a power saw with a suitable blade designed for plastics. Always mark your cutting line clearly and use a miter box for accurate straight or angled cuts.

Painting UPVC is generally not recommended as standard paints may not adhere well or may chip/peel over time. If you wish to change the color, specialized UPVC paints are available, but ensure the surface is properly prepared and primed according to the paint manufacturer's instructions.

For optimal results, the existing sill should be as level and stable as possible. Minor imperfections can sometimes be covered, but significant damage or unevenness may need to be addressed before installing the cover board to ensure a smooth and secure fit.

This specific variant is 1M long, 180mm wide, and 9mm thick in white. However, Eurocell offers a range of UPVC sill cover boards in various lengths, widths, and some color options (like Golden Oak), as indicated by other product variants. Please check product listings for available alternatives.

This often indicates inaccurate measurements or cuts. Carefully re-measure your existing sill and the cover board. If small gaps remain, they can sometimes be filled with a suitable UPVC sealant or caulk.

Ensure you used a strong, appropriate adhesive and that the existing sill surface was clean and dry before application. Apply sufficient pressure during installation and allow the adhesive ample time to cure fully without disturbance. In areas prone to flexing, additional adhesive or temporary bracing might be needed during curing.

While UPVC is designed to resist yellowing, prolonged exposure to harsh cleaning chemicals or direct, intense sunlight can sometimes contribute to it. Clean regularly with mild soap and water. If discoloration occurs, specialized UPVC restorer products may help, but prevention through proper care is best.