Large Output Liquid Silicone Rubber For Continuous Factory Casting And Molding Work
Description of Tin Cure Silicone Rubber
Tin-cured liquid silicone rubber, also referred to as condensation-cure liquid silicone rubber, is supplied as a two-part A+B system with a typical mixing ratio of 100:2. Capable of curing at ambient temperature, it is classified as RTV silicone rubber.
Application of Tin Cure Silicone Rubber
HN-620 A/B Industrial-grade liquid silicone rubber for manufacturing construction molds is suitable for the molding and reproduction of large-scale stones, gypsum, cement parts, cultural stones, artificial stones, Roman columns, stone carvings and other furniture, construction and decoration products; it can also be used for
resin handicrafts, gypsum handicrafts, soap handmade soaps, tire turning molds, and other segmented molds.
Technical parameter of Tin Cure Silicone Rubber
| Model |
HN-640AB |
| Feature |
easy foaming |
| Viscosity (cs) |
170000 |
| Gravity ( G/cm 3 ) |
1.06 |
| Hardness(A°) |
20 |
| Linear Shrinkage(%) |
≤0.2 |
| Operating Time( mins ) |
30-40 |
| Curing Time( hours ) |
3-4 |
Feature of Tin Cure Silicone Rubber
High tear resistance, temperature, chemical and aging resistant
Good flowability, easy defoaming & demolding, no whitening on finished goods
Molds tolerate frequent turning over, long service cycle
Linear shrinkage ＜ 0.2%, high replication precision
Adjustable color, hardness, viscosity and operation time on demand
Operation method:
1. Mix the mold adhesive and curing agent in a weight ratio of 100:2-3 and stir evenly;
2. Place the mixed and stirred silicone gel into a vacuum machine for vacuum exhaust bubble treatment. The advantage of doing so is to make the product smooth and free of bubbles (without a vacuum machine, the curing time can be extended to allow bubbles to naturally discharge, but the effect is not very ideal);
3. Spray (apply) a layer of release agent on the already made mold and mold frame, fix the mold in the middle, and slowly and steadily pour the liquid silicone that has discharged the bubbles into the mold frame until the silicone completely covers the mold, and then let it rest until it fully solidifies;
4. Wait until the silicone gel of the mold is fully cured before demolding, and remove the silicone mold for edge treatment;
5. It is recommended to leave the silicone mold for 24 hours before putting it into use, in order to achieve the best use effect of the mold.
Packing
Packaging: 25kg / 200kg iron drums
Storage: Sealed, cool, shaded and dry environment
Shipping: Non-hazardous material
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