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Product Description
Good fluidity, fine colloid, no impurities;
It can be many times of mold turning and is suitable for mass production and replication of gypsum cement products;
High tear strength, good tensile force, the long service life of silicone mold;
Low shrinkage (≤0.3%), It can be quickly cured at room temperature, and the performance can be changed according to customer requirements;
High-temperature resistance, acid and alkali resistance, no expansion, and no deformation of the mold.
Apply to
Gypsum products mold silicone rubber is suitable for the production of large and small pieces of gypsum products silicone rubber mold, which can be mainly used for the replication of fossils, background walls, gypsum lines, cement rockery, cement sculptures, and gypsum crafts.
Model | Viscosity（cps） | Hardness（Shore A） | Density (g/cm³) | Resilience (%) | Tensile strength (MPa) | Elogation at break (%) | Tear strength (KN/m) | Tensile set(%） | Line shrinkage (%) |
| Test Standard | DIN53019 | GB/T531.1 | GB/T533-2008 | GB/T1681- 2009 | GB/T528 | GB/T528 | GB/T529 | GB/T528 | CGB-T14235.4 |
| YR250-30MJ AB | 50 | 40 | 1.09 | 70 | 7 | 400 | 30 | 0.8 | 2.1 |
| YR250-43MJ AB | 50 | 40 | 1.09 | 70 | 7 | 400 | 30 | 0.8 | 2.1 |
| YR250-45MJ AB | 45 | 45 | 1.08 | 65 | 7 | 400 | 30 | 0.9 | 2.2 |
| YR250-40MJ AB | 45 | 40 | 1.09 | 68 | 7 | 420 | 30 | 0.9 | 2.1 |
| YR250-50MJ AB | 50 | 50 | 1.09 | 65 | 6.8 | 400 | 30 | 0.9 | 2.2 |
| Remark | Vulcanization conditions：A/B is evenly mixed，Mold:140mm×120mm×2mm,175℃×5min compression molding.Assistance with specifications are available by contacting our engineers. | ||||||||
Certification
FDA,MSDS,RoHS, REACH, and so on.
Color
Clear and milk white(standard colors)
Other wide variety of colors (customized)
Specification
25KG,200KG/ pails or Customized.
How to use
1. Divide two or more dies according to the product, so that the product can be easily demolded;
2. Fill the parts below the die line with sludge, the hardness of the sludge should not be too large, and it should be close to the mold seed when stacking;
3. Put on the tenon and leave the mold about one centimeter away, which is convenient for mold clamping and makes the mold, not in place;
4. Evenly coat the mold surface with a release agent, which can be detergent or soapy water;
5. Mix the gypsum product silicone rubber at a ratio of 100:2, mix it evenly, and put it into a vacuum machine to vacuum；
6. After the outer mold is completely cured, you need to remove the cardboard, the entire plaster outer mold, and the silicone mold. It can be put into production after 24 hours；
Store
It can be stored unopened for 12 months at a room temperature of 25°C.
It should be stored in a dry bath at room temperature and in an airtight container and do not contact with water to prevent deterioration.
