RTV Mold making silicone rubber

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DESCRIPTION MC Silicone RTV2 mold making rubber is a two-component material, consisting of Part A base silicone and Part B CA30 curing agent, cures at room temperature by a condensation reaction. These materials can be cast into the cured silicone mold: plaster, polyurethane, PU, GRC, cement, resin, polyester, wax etc... FEATURES 1. Good flowability and long working time 2. Medium hardness 3. High tear and tensile strength 4. Easy de-mould from complex replica parts 5. Acid and alkali-resistance 6. Low linear shrinkage APPLICATIONS MC Silicone RTV2 series are suited for reproduction of cement molding, concrete stones, artificial stones, plaster molding, figures, art objects, decoration molding, GRC products, gypsum products, resin products, PU molds. Etc. Item RTV 930 Color off-white Curing agent CA30 Mixing ratio 100:5 Mixed viscosity 16700 cps Working time 60-80 mins Curing time 8-12 Hours Hardness 28-30 Shore A Tear Strength 28 N/mm Tensile Strength 4 Mpa Shrinkage ≤0.3% Relative density 1.1-1.15 g/cm3 Elongation at break 510% Procedures 1. Make sure the surface of the original is clean and free of loose material. 2. Weight 100 Part A base and 2 parts of CA30 Curing Agent in a clean container. 3. Stir Part A base silicone before use thoroughly , as filler separation may occur upon prolonged storage. 4. Mix Part A and Part B evenly until the CA30 completely dispersed in the base. 5. Pour the mixed Part A base silicone and CA-30 curing agent as soon as possible onto the original 6. De-mold after 24 hours ,it is will improve the replicate times of silicone mold. Note:It is strongly recommended that entrapped air be removed in a vacuum chamber, allowing the mix to completely expand and then collapse. After a further 1-2 mins under vacuum, the mix should be inspected and can be used if free of air bubbles. A volume increase of 3-5 times will occur on vacuum de-airing the mixture. So a suitably large container should be chosen. STORAGE When stored at or below 30 C(85F) in the original unopened containers, RTV2 Silicone Base and CA30 Curing agent have a usable life of 10 months from the date of production. After 10 months stockpiles use the Stir to mixing the Part A silicone for some mins, then the silicone can be use again, no influence for other performance. Packing 20kg/drum,25kg/drum or 200kg/drum of Part A base silicone 0.25kg/bottle,1kg/bottle and 10kg/bottle of Part B CA30 Curing Agent The information above is just for reference, if you're interested or have any questions, please feel free to contact Nicole: Web:www(dot)mcsilicone(dot)com E-mail:nicole(at)mcsilicone(dot)com Skype:nicoleszmc MSN: nicoleszmc (at)hotmail(dot)com

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Mingcheng Group Limited

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