What are the differences between silicone rubbers? Silicone Rubber Handbook https://www.redelease.com.br/downloads Material Cited: White Silicone Rubber (https://bit.ly/3XTyOET) Blue Silicone Rubber (https://bit.ly/2HPnO3r) Green Silicone Rubber (https://bit.ly/3kIPK28) Pink Silicone Rubber (https://bit.ly/2JhP6Bt) Red Silicone Rubber (https://bit.ly/3Y5qDoH) Black Silicone Rubber (https://bit.ly/2NYJr4N) Semi Crystal Platinum Silicone Rubber (https://bit.ly/3jeixLE) RX32 Silicone Rubber (https://bit.ly/2I3kPGX) BX3 8001 Silicone Rubber (https://bit.ly/3kU8XOD) Today we are going to talk a little about silicone rubbers and their differences. Well, basically, folks, we have two types of silicone rubber. Hot-cure rubber and ambient-cure rubber. The best-known here in Brazil are the ambient-cure rubbers, which are called RTV silicone rubber. Redelease has been distributing silicone rubbers from this family for over 30 years for the most diverse applications. Decorative items: Molding of sculptures and statuettes; Furniture: Molding of furniture or decoration elements; Civil construction: Pre-manufacture of decorative elements and restoration; Jewelry: Molding and replacement of parts in polyester, acrylic, epoxy, etc.; Die-casting and prototyping: Reproduction of industrial molds and matrices; Crafts: Molds for composing figures in biscuit, soaps, candles, plaster parts, etc.; These are the rubbers with a tin-based catalyst. Within this family, you have different types of performance in the rubbers, varying in their hardness, elasticity, and tear resistance. From most flexible to most rigid, we have the following rubbers: White, Blue, Green, Pink, Black and Red, which both have the same shore. Oh, and what is the difference between the elasticity of silicone rubbers? The more flexible the rubber is, in theory it will have a better copy of details, precisely because you can bend it more when unmolding. However, the more flexible the rubber is, for example, the larger the mold wall you have to make so that it does not lose the mold square. For example, for soap molds, people use the white one a lot, for 3D plaster molds many use the blue one, sculptures use the pink one, and so on. In the case of red and black, which are very rigid, they have the characteristic of having great resistance to temperature, and this makes them capable of producing some castings such as lead, tin, zamak and other metals that have a casting temperature close to 400 degrees. We also have self-performing rubbers, which in this case are rx32 and bx3 silicone rubbers. With them, you can get a LOT more parts, up to 4x more than "entry-level" rubbers. These are widely used in encapsulation of electronic components; manufacturing of parts; high-resistance skin molds for the footwear industry; high-frequency molding. But it is important to be clear that nothing is written in stone; you can do your own tests and adapt any of them to your application. Within the ambient cure, we also have semi-crystal platinum rubber, in this case it is much more expensive. Normally, these rubbers are 1:1 and tend to have greater tear resistance, greater chemical resistance, better finish and durability. In addition, platinum rubbers can be completely non-toxic, thus being used for molds for confectionery, orthopedic prostheses, sexy shop items, etc. Obviously, for this to happen, it needs to undergo tests to have the appropriate certifications to obtain medical and food grade. Platinum-based silicones have a slightly more delicate characteristic that in many cases can be a problem, which is precisely their ease of contamination. Some materials, such as those listed below, can easily contaminate rubber: Tin derivatives (e.g., tin system catalysts, etc.) Amine derivatives (e.g., epoxy resin catalysts, etc.) Sulfur derivatives (e.g., vulcanized rubbers, certain dyes, etc.) So with them, you end up needing a more sterile environment. Well, now let's talk a little about HTV, which are heat-curing silicones. This type of silicone is also called high-consistency silicone, it is a gum that is pressed into a mold at high heat and its catalyst is peroxide-based. Its main disadvantage is that its production is done only by machinery and in order to reduce costs the molds are extremely thin and produce on a gigantic scale and precisely because of the thin walls the molds last very little and lose their squareness quickly On all Social Networks @redelease Where to buy: http://www.redelease.com.br Visit a Redecenter. https://www.redelease.com.br/lojas-fi...