Description BONDING AGENT FOR CEMENT & SAND SCREEDS AND RENDERS • ENHANCES BOND STRENGTH & FLEXIBILITY • PRIMER FOR ABSORBENT SUBSTRATES Plastinex is a water based styrene butadiene latex additive specifically designed to enhance the bond (tensile) and flexibility (shear) strength of cement based adhesives to non-porous tiles. Plastinex, diluted with water, reduces the porosity of boards & renders and is recommended as a general primer. ADHESIVE MODIFIER : Dilute 1 litre of Plastinex with 4 litres of water for approximately every 25kg of adhesive. CEMENT SCREEDS : For screeds & renders mix 20L of diluted Plastinex (4:1) with 120kg of clean sand and 40kg of cement (3:1). CEMENT RENDERS : For thin section (3:1) mortars, mix 20 litres of Plastinex with 40kg of mortar. For thick bed (3:1) mortars, mix 20 litres of Plastinex with 40kg to 80kg of mortar. SUBSTRATE PREPARATION All substrates to be sealed must be flat and true, free from oil, dirt, grease or any other contaminants. Dilute 1 litre of Plastinex with 4 litres of water for sealing or priming applications. Concrete : New concrete must be allowed to cure for 6 weeks and should have a wood float finish. Use Floor Prep to acid etch an adhesive key into concrete finished with a steel float. Cement Render : Render to be left with a wood float finish and allowed to cure for 7 days. Plasterboard : Plasterboard must be fixed as per manufacturer’s instructions. Prime all jointing compounds. Fibre Cement Sheets : Joints must be taped with PVC duct tape and all boards fixed according to the manufacturer’s instructions. MIXING & POT LIFE Add Plastinex to clean water at a 1 to 4 ratio. Add the adhesive, cement or mortar and mix to a smooth paste free from lumps by using a drill that has a speed lower than 300 rpm, or mix by hand. Slacken the adhesive or mortar and re-mix after 5 minutes. In mortar, Plastinex has a pot life of approximately 3 hours at 23°C and 50% relative humidity
