Contact: Manager Zhang 13823551369
Manager Chen 13316540440
Mail box: 3265465343@qq.com
Fax: 0755-84826339
Website: www.szhtgj.cn
Address: 3020, Longcheng Avenue, Longgang District, Shenzhen, Guangdong Province
Introduction of Cement Product Mold Silica Gel:
Cement product mold silica gel is a mold silicone rubber developed for the heavier easy to damage molds of cement products. It is suitable for mass production reproduction of cement products, the reproduction pattern is exquisite, the pattern reproduction is clear, which solves the problem that other materials cannot replicate the pattern design on the cement surface.
液态硅胶
Use of silica gel for cement product mold:
Cement product mold silica gel is suitable for the duplication of large stone, plaster, cement components, cultural stones, background walls, sandstone carvings other products the production of silica gel molds. It can perfectly copy the small grain patterns of the product, which is suitable for mass production replication of cement products. The silicone mold can be reused, saving production costs for customers! The recommended hardness range is 15-40 Shore degrees, the final hardness value is determined according to customer product requirements processes.
Features of Cement Product Mold Silica Gel:
1. Good fluidity, easy operation, simple demoulding;
2. The made silicone mold is deformed, resistant to high temperature, does expand, has a long service life;
3. High tearing strength, good tensile force, many times of mold turning;
4. Low shrinkage rate (≤0.3%), fast curing molding at room temperature, performance can be adjusted according to customer requirements;
5. Suitable for all kinds of large, medium small, complex-shaped product replication silicone mold making.
Cement product mold silicone operation
1. Preparation tools: planks, rulers, knives, hot melt glue guns, etc.;
2. Clean the surface of the mold, evenly apply a layer of release agent (washing detergent), fix the mold on a flat wooden glass plate;
3. Cut the corresponding wooden board, surround the mold (leave a distance of about 5mm between the board the mold, apply a release agent), seal the gaps on the four sides with a hot melt glue gun;
4. According to the size of the mold, the complexity of the structure the use of weighed silica gel for proportioning, fully mix stir a part of the mold, then vacuum together;
5. After vacuuming, pour all the remaining silica gel into the mold;
6. After the silicone is fully cured (3-4 hours), remove the cardboard, remove the silicone mold, trim the excess silicone on the four sides with scissors;
7. Demould, take out the mould, trim the edge;
8. At this point, the whole process is over, it can be put into production after 24 hours. Store the silicone mold in a ventilated, cool dry place.
Cement product mold silica gel operation attention:
1. Use clean operating tools to prevent silica gel mixing with impurities affecting curing;
2. The amount of curing agent added should depend on the temperature, it will decrease if the temperature is higher. Excessive addition of curing agent will affect the quality of the mold, the silicone mold will become brittle; adding less curing agent will prolong the curing time;
3. Vacuum to -0.1mpa is enough, the vacuum time should be too long to prevent cross-linking reaction of silica gel when vacuuming, causing silica gel to become piece by piece, causing waste of raw materials;
4. After making the silicone mold, store it in a ventilated, cool dry place, put it into production after 24 hours.
Cement product mold silica gel parameters:
color | white/translucent | |||||
Hardness (Shore A) | 15±2 | 20±2 | 25±2 | 30±2 | 33±2 | 40±2 |
Vulcanizing agent addition (%) | 2-3 | |||||
Dynamic viscosity (mPa.s) | 1.3w±0.2w | 1.7w±0.2w | 2.5w±0.2w | 2.7w±0.2w | 2.5w±0.2w | 1.5w±0.2w |
Tensile strength (MPa) | 2.5 | 2.8 | 3.4 | 4.0 | 3.5 | |
Tearing strength (KN/m) | 16±2 | 19±2 | 24±2 | 25±2 | 21±2 | |
Elongation(%) | 380 | 530 | 410 | 420 | 450 | 180 |
Density (g/cm³) | 1.08 | 1.09 | ||||
Operating time (min) | 30-50 | 30-40 | 30-50 | |||
Curing time (h) | 4-5 | 3-4 | 4-5 | |||
Linear shrinkage rate (%) | 0.3 | |||||
standard packaging | 25kg |
Note: The above parameters are only regular parameters. If you have special requirements, please contact our company; the hardness, viscosity, operating time after curing can be specially adjusted provided according to customer needs.
Contact: Manager Zhang 13823551369
Manager Chen 13316540440
Mail box: 3265465343@qq.com
Fax: 0755-84826339
Address: 3020, Longcheng Avenue, Longgang District, Shenzhen, Guangdong Province
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