Artificial/Cement Stone Mold Making Silicone

FEATURES 1. Good flowability and long working time2. Medium hardness3. High tear and tensile strength4. Easy de-mould from complex replica parts5. Acid and alkali-resistance6. Low linear shrinkageAPPLICATIONSSILASTIC RTV2066 is suited for middle size reproduction of cement molding, concrete stones, artificial stones. Base and Curing Agent Mixture (100:2 by weight) in 25 C (77F) testingItem No.RTV 2066Coloroff-whiteCuring agentCA30Mixing ratio100:2Mixed viscosity25000-26000 cpsPot life20-30 minsCuring time 2-3 HoursHardness28-30 Shore ATear Strength27 N/mmTensile Strength≥3.8 MpaRelative density 1.09-1.15 g/cm3Shrinkage≤0.3%Elongation at break420%Methods of moldingBrushing/PouringHow to make the silicone mold?1. PreparingThe surface of the original should be clean and free of loose material. If your products with thin flower patterns, and especially with porous substrates, pls use a suitable mold release agent such as soap water, detergent, waseline or petroleum jellies.2. MixingPlease weight 100 Part A base and 2 parts of CA30 Curing Agent in a clean container. Thoroughly stir Part A base silicone before use, as filler separation may accour upon prolonged storage. Mixing Part A and Part B evenly until the CA30 completely dispersed in the base. Hand or mechanical mixing can be used, but do not for an extended period of time or allow the temperature to exceed 35C (95F). Mix suitably small quantities to ensure thorough mixing of base and curing agent.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. Volume increases of 3—5 times will accour on vacuum de-airing the mixture. So a suitably large container should be chosen.3. Pouring and curingPour the mixed Part A base silicone and CA-30 curing agent as soon as possible onto the original, avoiding air entrapment. The catalyzed material will cure to a flexible rubber within 6 hours (or faster by different mixing ratio or room temperature), we advice you de-mold after 24 hours, it is will improve the replicate times of silicone mold. PACKAGING Part A base silicone：20kg/drum, 25kg/drum or 200kg/drum Part B CA30 Curing Agent ：0.25kg/bottle,1kg/bottle and 10kg/bottle STORAGEWhen stored at or below 30 C (85F) in the original unopened containers, SILASTIC RTV2066 Base and CA30 Curing agent have a usable life of 9 months from the date of production.NoteSILASTIC RTV2066 is an industrial product and must not be used in food molding, dental human skin molding applications.