Silicone Rubber for Mold Making

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SILASTIC- MC RTV2020 Base and SILASTIC CA30 Curing Agent High strength Silicone mold making rubber RTV-2 DESCRIPTION SILASTIC RTV2020 moldmaking rubber is a two-componet 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. Low hardness,easy demould 3. High tear and tensile strength 4. Easy de-mould from complex replica parts 5. Acid and alkali-resistance 6. Low linear shrinkage APPLICATIONS SILASTIC RTV2020 is suited for middle size reproduction of candle mold,soap mold,small size concrete stones,artificial stones,plaster moulding,figures,art objects,decoration moulding,the products with thin flower patterns. DETAIL STANDARD Base and Curing Agent Mixture(100:2 by weight) in 25 C(77F) testing Item RTV 2020 Color off-white Curing agent CA30 Mixing ratio 100:2 Mixed viscosity 24000-25000 cps Working time 30-40 mins Curing time 4-6 Hours Hardness 18-20 Shore A Tear Strength 25 N/mm Tensile Strength ≥3.8 Mpa Shrinkage ≤0.3% Elongation at break 550% Relative density 1.1-1.15 g/cm3 How to make the silicone mold? 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,SILASTIC RTV2020 Base and CA30 Curing agent have a usable life of 9 months.from the date of production. Note: SILASTIC RTV2020 is an industrial product and must not be used in food molding,dental human skin molding applications. Packing Part A base silicone：20kg/drum,25kg/drum or 200kg/drum Part B CA30 Curing Agent：0.25kg/bottle,1kg/bottle and 10kg/bottle 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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