Description FASSA S 650 is a bio white undercoat for the restoration of damp masonry, suitable for both interiors and exteriors. S 650 undercoat white dry mortar made from natural lime, sulphate-resistant hydraulic binder and graded limestone sands. Use: S 650 bio white undercoat is used as a renovation undercoat for damp walls to promote the adhesion of the renovation plaster S 639 to the wall, by enhancing its anti-saline action. Supply Special bags with moisture protection from approx. 25kg Suitable for interiors and exteriors Grading: 3mm Coverage: approx. 3-5kg/m² Thickness: 4-5mm Application: by hand or by render sprayer UKCA Approved Compliant with European standard EN 998-1 GP-CSII-W1 Please note: S 650 ships by pallet Pallet quantity: 40 bags per pallet Before using any of our Fassa products, we always advise checking the data sheets before use, please refer to the Fassa Bortolo website