Granite composite undermount kitchen sink in Rock Grey, made from Blanco's proprietary Silgranit material for superior scratch, heat, and stain resistance.
The Blanco Subline 500-U is a premium undermount kitchen sink made from Silgranit PuraDur, Blanco's proprietary composite of approximately 80% natural granite. The undermount installation creates a clean, uninterrupted line from the worktop into the sink, which is both visually elegant and practically useful since crumbs and water can be swept directly from the surface into the bowl. The Rock Grey colour is a versatile neutral that works with stone, quartz, and solid surface worktops.
The undermount sink has become the preferred choice for kitchens with stone, quartz, or solid surface worktops. The Blanco Subline 500-U is one of the most specified models in the UK market, and the Silgranit material offers advantages that stainless steel and standard ceramic cannot match.
Silgranit PuraDur is composed of approximately 80% natural granite bound with acrylic resin. This creates a surface that resists scratching from everyday kitchen use, withstands temperatures up to 280 degrees Celsius, and does not stain from tea, coffee, wine, or food colouring. The material also incorporates hygiene protection that inhibits bacterial growth on the surface.
The sink is fitted from below the worktop, with the stone or composite surface extending right to the edge of the bowl cutout. This requires a solid worktop material, as laminate worktops do not support undermount installation due to moisture exposure at the cut edge. The result is a smooth, continuous surface that makes kitchen cleaning faster and more thorough.
The Blanco Subline 500-U in Rock Grey is a premium kitchen sink that justifies its price through material performance and longevity. The Silgranit surface handles the demands of a busy kitchen without showing wear, and the undermount installation delivers both visual and practical benefits.
| Bowl Dimensions | 500mm x 400mm x 190mm deep |
|---|---|
| Material | Silgranit PuraDur (80% granite) |
| Installation | Undermount |
| Colour | Rock Grey |
| Waste Outlet | 3.5 inch (90mm) |
| Min Cabinet Width | 600mm |
| Warranty | Lifetime (Silgranit) |
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