Sandtex 10 Year Gloss Pillar Box Red 750ml, based only on known product specs:

10-Year Protection: Long-lasting finish for exterior wood and metal, resists weathering, fading, and moisture.
Highly Durable: Formulated to prevent cracking and peeling over time.
Flexible Coating: Moves with the material beneath—ideal for fluctuating outdoor temperatures.
Vibrant Gloss Colour: Rich red tone designed to stay bright and bold, even in tough weather.

Surface Prep: Surfaces should be clean, dry, and free from grease or flaking paint. Light sanding helps with adhesion.
Primer Needed: Best results when used with Sandtex 10 Year Primer Undercoat.
How to Apply: Use a natural bristle brush or gloss roller for smooth, even coverage.
Touch Dry: In 4–6 hours (depending on conditions)
Recoat Time: After 16 hours
Coverage: Up to approx. 11–13 square meters per litre. A 750ml tin should cover 8–10 square meters depending on the surface.