1. Description of rtv 2 silicone rubber mold making for concrete casting mould C-830 liquid silicone rubber is condensation cure silicone rubber for mold making. The liquid silicone rubber will be cured under room temperature. It's two components, the mixing ratio is 100:2. Part a is a flowable liquid silicone, part b is the catalyst. It has an exceptional fluidity and good operability. 2. Characteristics of rtv 2 silicone rubber mold making for concrete casting mould An exceptional fluidity and good operability, easy to demold * good tensile strength and tear strength * suitable hardness * copy detailed pattern * good flexibility * eco-friendly * long shelf-time &lifetime 3. Application of rtv 2 silicone rubber mold making for concrete casting mould C-830 liquid silicone rubber is perfect molding material, it is suitable to make mold for concrete casting, artificial stone, brick, cement casting, gypsum decorations, plastic product, resin craft, polyester, polyurethane, bronze casting, statues, jewelry, wax, crystal, tire mold, shoe mold, clay casting, ceramic casting. Etc. C-830 liquid silicone rubber is mainly suitable for small or middle sized products with delicate pattern by pouring and brushing operation. Packing Package 25kg/drum vacuum packing for part a +1kg/ bottle catalyst for part b 200kg/drum packing for part a +1kg/ bottle catalyst for part b Shelf life 1. Twelve(12) months when stored under dry and cool place by original package under 25�?? Why choose us? 1.Free sample 2.Sample test 3.Technical support 4.Engineers site instruction 5.New products developing 6.New market developing 7.Factory visiting reception 8.China visiting reception 9.China latest silicone news 10.Related products purchasing assistance 11.More than 8 years experience in producing liquid silicone rubber