Black Rubber Paint RAL 9004 — Liquid Rubber for Roof, Metal, Wood
Black liquid rubber paint (RAL 9004) is the most popular shade in the RubberPaint range — for good reason. The deep matte finish hides splash marks and surface texture better than any other colour, has the lowest UV-fade visible signature, and works on every substrate where elastic waterproofing is needed: roof, metal, wood, concrete and masonry. This page covers what makes black the workhorse choice and where it's the right answer.
Why black RAL 9004 specifically
RAL 9004 is "signal black" — a deep matte black without blue or warm tints. Compared to traditional black paints, it has:
- Lowest visible UV change — dark pigments show fade least visually
- Highest dirt-hiding — splash marks, fine cracks and surface texture all become less visible
- Matt finish — no glare under low sun, fits modern architecture
- Strong contrast when used as accent against lighter façade colours
Where black liquid rubber paint excels
- Flat roofs — traditional roof colour, matches existing bitumen finish if not fully recoating
- Metal structures — gates, railings, beams, agricultural machinery
- Garden fences and posts — modern black fencing is now standard in UK landscape design
- Industrial plant — tanks, ductwork, structural steel
- Plinth and base walls — hides dirt and splash marks better than any lighter shade
- Asphalt drives and decorative concrete as a refresh coat
Specifications
| Property | Value |
|---|---|
| RAL code | 9004 (signal black) |
| Finish | Deep matte |
| Binder | Water-based acrylic-latex |
| Coverage per coat | 100–200 g/m² |
| Drying time (touch dry) | 2 hours at 23 °C |
| Available sizes | 1.2 kg, 3.5 kg, 6 kg |
Thermal considerations
Black absorbs more solar heat than lighter shades. On surfaces in continuous direct sun (south-facing flat roofs, exposed metal structures) the cured film can reach 70 °C surface temperature on hot UK summer days. The coating remains within its service temperature range (rated to +50 °C ambient, surface peaks above are tolerated), but for cool-roof reflectivity choose white RAL 9003 instead.
Next steps
For white reflective alternative see White RAL 9003. For dark anthracite alternative see Anthracite RAL 7024. Order black 6 kg tub direct from the product page.
RubberPaint Team
Technical editorial · RubberPaint
