A carefully selected range of graded stone dusts, including Bath, Portland, Hamstone, Hornton Brown, Shaftesbury Green and Chalk, is crushed, graded and sieved in-house to ensure consistency and quality. Available in a variety of particle size distributions, these materials are integral to the accurate formulation of mortars, plasters and sheltercoats, contributing both colour and texture. These stone dusts are selected for consistency, workability and compatability with lime.

Each stone dust reflects the geological character of its source, enabling precise matching to existing masonry and finishes acting as high-quality aggregate for lime mortars, plasters, and finishes. Their use supports a considered and authentic approach to conservation and repair, allowing new work to sit comfortably within its historic context.