Hot Sell RTV2 Mould Liquid silicone rubber for Resin Products
1. Description of Hot Sell RTV2 Mould Liquid silicone rubber for Resin Products
Addition-curing, Food grade, Translucent, Two-component mold making silicone.
2. Characteristics of Hot Sell RTV2 Mould Liquid silicone rubber for Resin Products Acceptable for food contact Outstanding release properties Low viscosity Easy mixing and degassing High flowability Odorless and Nontoxic Enhanced durability
3. Application of Hot Sell RTV2 Mould Liquid silicone rubber for Resin Products
rtv liquid silicone rubber suitable for casting hundreds of products, for example: Industries of shoe mold, tire mold, jewelry mold and so on. Building decorations of plaster, gypsum, concrete, art stone, marble, cement, reinforced plastic, fiber glass resin, GRC, GFRC etc. Crafts of PVC, plastic, low melting point alloy, wax, toys etc. Arts of resin, candle, soap, relief etc. Furnitures of polyurethane wood imitation, resin, polyester, polyurethane, urethane etc. Sculptures of cement, plaster, bronze, clay, mud, pottery, terracotta, ice, ceramic, statues, figurine etc.
4. Datesheet of Hot Sell RTV2 Mould Liquid silicone rubber for Resin Products
Mixing Ratio (by weight)
Hardness (Shore A)
Working Time(at 23℃/75℉, MINS)
Curing Time(at 23℃/75℉, HRS)
Tensile strength, Mpa
Tear strength, KN/m
Elongation at break,%
5. Using instructions of Hot Sell RTV2 Mould Liquid silicone rubber for Resin Products Step 1: Prepare and clean the prototype. You must make sure your original molds perfect, fix the original mold on a board, then using some assistant material (like cardboard) to make a frame for to surround the prototype. The frame is no need, if we make the mold by brushing way.
Step 2: Take the silicone and catalyst as the ratio 1:1 by weight, mix the silicone rubber and catalyst evenly.
Notes: rtv silicone rubber is a kind of flowing liquid and it contains two parts. Part A is a kind of flowing liquid and part B is the curing agent. Remember to mix part A and part B evenly, otherwise the silicone rubber will be partly solidified and this will bring troubles for your final operation. What's more, the finishes molds will have a short life. All of these will cause a waste of silicone rubber.
Step 3: Vacuum pumping. After mixed the silicone evenly, it is better to release the bubble by vacuum pumping.
Step 4: Pouring cast or brushing cast. After released the bubble, we can pour/brush the silicone rubber on the prototype.
Notes: Please finishes all the steps within the operation time. If not, it will cause cross linking reaction, and no more further steps will be available. So, we have to pay attention to the pot life and curing time.
1.Why does the silicone mold appear to dry outside but wet inside? Some molding silicone rubber is a kind of condensation cure silicone rubber, which would get solidified after absorbing moisture.
While in order to provide a significant shelf-life for the silicon rubber, we will dry out the water in the silicon rubber.
So when the humidness is lower than 50%, this would happen.
Solution: Add 0.1% water into the silicon rubber and Stir over a low speed briefly when you use it.
2.Why the silicone mould cured incompletely?
a. Inexact mixing ratio, didn’ t weigh the part A and hardner according to the standard ;
b. The silicone and catalyst have not been mixed evenly and totally.
We should pay attention to avoid this kind of problem, otherwise there will be a waste of silicone mold.
R & D Capabilities
We have own lab with the experienced&professional R&D and production team as well as advanced devices. Here show only parts of the whole testing.
DONGGUAN SIBETTER NEW MATERIAL TECHNOLOGY CO.,LTD that established in 2005, is a science and technology corporation which is engaged in production, R&D, and sales of organic silicone new material.
SIBETTER has its own lab and factory with the experienced&professional R&D and production team as well as advanced devices. Now, SIBETTER is procuring high-quality products with high-class raw materials, advanced production equipment, scientific production technology and strict quality testing methods. Thus, SIBETTER’s silicone rubber has achieved the international advanced level with authentication of SGS, FDA, RoSH, UL and ISO9001 quality management system, etc. And SIBETTER is providing customized products and solutions and makes optimization for production to meet different needs. Also, on-time delivery service and perfect before&sales service help SIBETTER become more and more popular.
Now, SIBETTER are offering various kinds of silicone rubber in several industries, and its products have been exported to the Southeast Asia, Europe, America and other countries and regions with good reputation and high repurchase ratio. Our products included 18 series in hundreds of kinds of silicone products like silicone rubber,liquid silicone rubber, RTV-2 molding silicone rubber, condensation cure silicone rubber, addition cure silicone rubber, life casting silicone, food grade silicone rubber, tyre mold silicone rubber, silicone gel, liquid foaming silicone, etc.
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