Clayworks Interior Clay Plaster is manufactured in the United Kingdom from natural clay blended with mineral aggregates and pigments and supplied as a dry mix for interior application. The product is mixed with water on site and applied in one or more coats to form decorative wall and ceiling finishes. It is used in residential, commercial and cultural buildings where vapour open construction is required. The plaster is non combustible with reaction to fire class A1 and has a declared reference service life of 60 years. It integrates with clay and lime based substrates and breathable wall systems. The product is produced in Cornwall and distributed internationally. Environmental performance is documented in an EN 15804 compliant EPD.