Mould making silicone rubber Applications: Introduction This is a two component room temperature condensation curing silicone compound. The cured product is an exceptionally flexible rubber with very high mechanical properties and good shelf life stability. It is suitable for mould making of intricate patterns with extremely good pick up of fine details. Mould making silicone rubber with the hardness of 25-30 shore A, is specially suitable for medium crafts mould making and duplication of poly resin crafts in pouring way, PU crafts, gypsum or plaster, unsaturated resin, lighting and candles crafts, plastic toy, stationery gifts crafts, large statue buddha, furniture decoration, cement, articficial stone, etc. Mould making silicone rubber Advantages: light viscosity, pourable effort, good fluidity, easy-operation, good tension and high tear strength. Description of Mould making silicone rubber: Mould making silicone rubber mainly used for shoe molds, sand casting, sole sampling, plaster models, simple products, products with non-complex patterns, as well as product models with stable size and non-deformation. Features of Mould making silicone rubber (1)high tensile & tear strength (2)Low linear shrinkage (3)free Curing agent (4)brushing & pouring (5) high duplication times (6)easy operation (7)High temparate resistance,acid and alkali -resistance Mould making silicone rubber data sheet: Item Mixing Ratio Color Hardness (shore A) Viscosity (cps) Operating time (25°C) Curing time (25°C) Tear- Strength Tensile- strength Elongation Shrinkage S815 100:3 White 15±2 11000 ±3000 30-50mins 3-4h 22±3 ≥3.3 ≥500 ≤0.1% S820 100:3 White 20±2 14000 ±3000 30-50mins 3-4h 26±3 ≥3.3 500 ≤0.1% Datesheet for our hot sell mould making silicone rubber S825 100:3 White 25±2 22000 ±3000 30-50mins 3-4h 26±3 ≥3.4 400 ≤0.1% S830 100:3 White 30±2 24000 ±3000 30-50mins 3-4h 26±3 ≥4.2 350 ≤0.1% Using Mould making silicone rubber advantages: * Reusable * Molds can be used over and over again. * Does not shrink * Has good abrasion resistance. * Comes in a wide range of hardnesses and therefore gives long mold life. * Can be poured, brushed or sprayed on to the original model. * Is the most economical overall (compared to other mold rubbers). Storage and precautions for liquid silicone rubber Liquid silicone rubber, which is an environmentally-friendly liquid silicone product, is not easy to burn and can be stored and transported as non-hazardous goods. The shelf life of the product is about one year from the date ofproduction. Inspection is required when exceeding the time limited. It can continue to be used in case of neither thickening nor deterioration. Packing view 1. Tin drum Frequently asked questions of Mould making silicone rubber Why the Mould making silicone rubber mold appear with weak tear strength? When making silicone rubber mold, some customer add a lot of silicone oil to reduce the viscosity of silicone rubber. In fact, this has the opposite effect. The tension and tear strength will be reduced badly with the addition of silicone oil, which leading to the weak and flimsy condition of silicone rubber molds. Why is the appearance of the finished mold striate and unsmooth? It is because the appearance of the product or the model itself is not perfect, and it has not been polished before the further operation. So when you make silicon molds, firstly you should polish the product, spray the mold spray evenly on the product. In this case, the problem can be avoided. How to deal with the bubbles during the mixing process? It depends on your practical situation. Firstly you can deal the mixture with a vacuum machine if you have one; If no such machine, you can reduce the mixing ratio of the hardener from 4% to 1%-2%.Then in the prior period of the reaction of the mixture will be slower, then the air in the mixture will exhaust by itself for a longer curing time to release the bubble. Any questions of Mould making siliconerubber, please feel free to contact Smily: MOBILE:0086-18720095225 Website: www(dot)ottsilicone(dot)com E-MAIL: ottsmily(at)gmail(dot)com Whatsapp:0086-18720095225