SITREN® SRA P 260 is a powdered shrinkage reducing additive based on a polyether on an inorganic carrier.
SITREN® SRA P 260 effectively decreases the shrinkage of cementitious, dry-mix and specialty mortar formulations, that can occur when the formulation is losing moisture during the drying process. Main applications are:
• Self-levelling mortars (SLU/SLO)
• Flowable screeds
• Tile adhesives
• Non-shrink grouts
• Repair mortars
• Waterproofing membranes
• Powder paints
BENEFITS & ADVANTAGES
SITREN® SRA P 260 functions by reducing capillary tension of pore water, a primary cause for drying shrinkage. In addition SITREN® SRA P 260 provides the following benefits:
• Superior reduction of drying as well as plastic shrinkage
• Reduced potential for slab curling
• Fast curing-almost no impact on initial setting and early strength development of cementitious binder system
• Very low contribution to VOC (volatile organic compound)- allows to formulate final products that meet e.g. EMICODE EC1PLUS regulation
• Good workability properties
• Reduces the magnitude of capillary stresses and shrinkage strains
• Improved impermeability and durability
• Low impact on air void content of the mortar-no formula adjustment needed, good workability
• Excellent long-term stability in dry mortar formulations
• Easy-to-use powder (not hygroscopic)
