Opti Signal Black

Opti Signal Black is a non-reflective, acrylic topcoat for railway signalling equipment and other primed metal surfaces.


Product uses

  • Topcoat for railway signalling equipment.
  • Topcoat over primed galvanized metal and other metal surfaces.
  • Can be applied to old and new masonry, cement, concrete, bricks and plaster.



  • Excellent weather and UV resistance – water vapour permeable.
  • Ready to use – less wastage, no mixing or thinning required.
  • Very good flow and hiding capabilities.
  • The product is flexible which prevents cracking and peeling.



10m² per litre per coat. Applied in a single coat.





Available Sizes






While Optima Coatings makes every effort to ensure that paint colours match those shown on this website, variations will occur due to different computer screens. Please ask your Optima Coatings Technical Sales Consultant for more accurate colour swatches. To ensure consistency of sheen and colour, always check that paint containers carry the same batch number.