Blue Gray isn\'t quite as simple as its name suggests, appearing more blue, grey, or even green depending on the light. A small amount of black pigment gives it a relaxed, almost weathered feel. Try it as a less intense version of French Gray.Exterior Masonry is a super-matt, long-lasting finish for exterior walls. Its water-resistant formula protects walls, while at the same time offering the highest level of water vapour permeability to allow them to breathe. Applied in line with the Product Advice Sheets, it resists flaking, peeling, and fading for up to 15 years. Available in 108 Farrow & Ball colours. Providing it has been applied in accordance with Farrow & Ball Product Advice Sheets. Not suitable for use on exterior plastic surfaces or decking.