Product Description RTV2 Tin-based silicones,also called condensation cure silicone, are two- component materials which Cure at room temperature(RTV) to flexible,high tear-strength rubbers,Tin cured silicone can be poured onto models or they can be made brushable by adding a thixotropic additive. They are ideal for molds where easy release or high temperature resistance(Max 200 C) is required. Tin cured silicone can be used for casting polyurethane,epoxy,polyester resin,PU resin,cement,plaster,gypsum,candle,soap,waxes,toys crafts,poly resin crafts,Lighting,plastic toys,stationery gifts,statue,relieve furniture,furniture decorative materials,artificial stone,building decoration material,sculpture,sandstone,low melt alloys/metals,urethane,expoxy and so on . Tin cure silicone rubber for molding is white or translucent flowing liquid with general hardness of 15-60shore A after curing. Molding silicone rubber is a kind elastic silicone rubber mold which features with resistance to deformation, high-temperature, acid-alkali and expansion as well as high reproduction times, good tensile strength ,tear strength and elongation, Stripping the gender is good, Linear shrinkage rate low, Size stability is good. Data of Liquid Silicone Rubber for mouldmaking (MSDS) Tin condensation Rubber seriesItemRTV 2024Coloroff-whiteMixing ratio100:5Mixed viscosity20000-21000 cpsWorking time 90-120 minsCuring time 12-16 HoursHardness24 Shore ATear Strength35 N/mmTensile Strength4.7 MpaShrinkage≤0.3%Elongation at break544%Relative density 1.1-1.15 g/cm3Note: The TDS just for reference,we can according customer’s requirement to adjust the Color,viscosity and hardness.Welcome to contact us.Procedures1. 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 original6. 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.
