A large-scale commercial building in Manchester presented a precise specification challenge: Black FR (fire-retardant) Valchromat boards were selected as an exterior cladding detail, installed under cover, and required a sealing finish that would protect the boards without compromising their fire-retardant properties.
Koate Valchromat 606 Oil was specified for this application. As a one-coat oil formulated specifically for Valchromat boards, it provided the ideal solution — a clear, penetrating finish that seals and enhances the board without introducing any coatings that could affect the FR rating. The single-coat application also made it exceptionally practical for factory finishing, allowing large sheets to be treated efficiently before installation on site.
The colour specified was PURE — Koate's clear oil — which enhances the deep, rich character of the Black FR Valchromat without altering its tone. All timber strip details throughout the project were also coated with Valchromat 606 Oil, ensuring a consistent, cohesive finish across every element.
Koate Valchromat 606 Oil is the go-to choice for architects and designers working with Valchromat boards, and is frequently specified alongside our XMatt Varnish — another firm favourite for its ultra-flat, durable finish on Valchromat surfaces.
If you are specifying Valchromat for a commercial or residential project and require a finish that performs without compromise, our team is on hand to advise.
