Clean the Surface Thoroughly.
Use a uPVC cleaner or Degreaser on a clean cloth. All silicone should be removed from the perimeter of the window and to at least 5mm below the surface so that the window can be re-sealed later.

Protect areas like brick, render, glass, and seals from overspray.

Use Masking tape along the edges of the uPVC.
masking Paper, plastic sheeting. should be used for larger areas

Use a Sanding Sponge or 600-grit sandpaper.
Lightly rub the entire surface — the aim is to dull the sheen, not remove the material.
Ensure consistent abrasion across the frame without gouging the uPVC. Important: Don’t skip this step — All paints require a key to bond.

UPVC PRO is a 1K Polyurethane that does not require a primer, this paint bonds direct to UPVC and other hard plastic surfaces. Spray in smooth, overlapping passes, maintaining a consistent distance (about 6–8 inches). 150 - 200mm,
Apply 2–3 light coats rather than one thick coat.
Allow 10 -15 Minutes drying time between coats.

Carefully remove tape and masking materials before the paint fully hardens to avoid peeling, Inspect the finish for runs or missed spots,
Lightly sand and recoat if necessary.

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