Products
Addition Silicone Rubber for Mold Making
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Product Description
Description
Addition Silicone Rubber for Mold Making is also commonly referred to as two-component room temperature vulcanization addition silicone. Both components A and B of silica gel can be fluid liquids. Among them, the A component contains platinum catalyst catalyst or other additives. After the two components are mixed, it can be heated and cured at room temperature.
Features
1. Not limited by product thickness, deep vulcanization
2. Low linear shrinkage rate (<0.1%), low molecules are not released in the cross-linking process, so the volume remains unchanged, and the copied product has high accuracy
3. Has excellent chemical resistance, high temperature resistance can reach 250℃
4. Food grade, non-toxic and tasteless, passed FDA food grade certification
5. High tensile and tearing strength, many times of mold turning, not easy to deform
6. Good fluidity, easy to infuse, can be cured at room temperature or heated, easy to operate
Application
1. Manufacturing of precision molds for metal crafts and alloy vehicles
2. Molding of epoxy resin, polyester resin, polystyrene, vinyl plastic, paraffin wax and other materials
3. Mold manufacturing for large cement components, cultural stones, concrete and other products
4. Design and production of high-precision prototype molds, rapid prototyping design
5. Food grade mold making
6. It can also be specially adjusted according to customer product requirements
8 series of addition molding translucent mold silicone rubber parameters (25℃)
Parameters
8 series of addition molding translucent mold silicone rubber parameters
|
Model
|
815
|
820
|
825
|
830
|
840
|
|
Color
|
translucent
|
translucent
|
translucent
|
translucent
|
translucent
|
|
Hardness (Shore A°)
|
15±2
|
20±2
|
25±2
|
30±2
|
40±2
|
|
Two-component mixing weight ratio (A:B)
|
1:1
|
1:1
|
1:1
|
1:1 or 10:1
|
1:1 or 10:1
|
|
Dynamic viscosity（mPa.s）
|
3000±1000
|
5000±2000
|
6000±2000
|
7000±2000
|
8000±2000
|
|
Tensile strength（MPa)
|
4.7
|
4.8
|
5.7
|
7.0
|
7.5
|
|
Tear strength（kN/m）
|
18±2
|
22±2
|
24±2
|
18±2
|
15±2
|
|
Elongation（%）
|
580
|
520
|
510
|
550
|
385
|
|
Density （g/cm³）
|
1.05
|
1.05
|
1.07
|
1.13
|
1.14
|
|
Operating time （min)
|
20-40
|
20-40
|
20-40
|
20-40
|
20-40
|
|
Vulcanization time（h)
|
3-5h（25℃）20-30min（60℃）
|
3-5h（25℃）20-30min（60℃）
|
3-5h（25℃）20-30min（60℃）
|
3-5h（25℃）20-30min（60℃）
|
3-5h（25℃）20-30min（60℃）
|
|
Linear shrinkage rate（%）
|
《0.1
|
《0.1
|
《0.1
|
《0.1
|
《0.1
|
G series of addition molding high transparent mold silicone rubber parameters (25℃)
|
Model
|
G815
|
G820
|
G825
|
G830
|
G840
|
|
Color
|
high transparent
|
high transparent
|
high transparent
|
high transparent
|
high transparent
|
|
Hardness (Shore A°)
|
15±2
|
20±2
|
25±2
|
30±2
|
40±2
|
|
Two-component mixing weight ratio (A:B)
|
1:1
|
1:1
|
1:1
|
1:1 or 10:1
|
1:1 or 10:1
|
|
Dynamic viscosity（mPa.s）
|
9000±1000
|
12000±2000
|
14000±2000
|
16000±2000
|
45000±5000
|
|
Tensile strength （MPa)
|
3.2
|
3.2
|
3.3
|
3.3
|
3.1
|
|
Tear strength（kN/m）
|
8±2
|
9±2
|
8±2
|
8±2
|
7±2
|
|
Elongation（%）
|
460
|
460
|
420
|
420
|
170
|
|
Density（g/cm³）
|
1.05
|
1.05
|
1.07
|
1.13
|
1.14
|
|
Operating time （min)
|
20-40
|
20-40
|
20-40
|
20-40
|
20-40
|
|
Vulcanization time（h)
|
3-5h（25℃）20-30min（60℃）
|
3-5h（25℃）20-30min（60℃）
|
3-5h（25℃）20-30min（60℃）
|
3-5h（25℃）20-30min（60℃）
|
3-5h（25℃）20-30min（60℃）
|
|
Linear shrinkage rate（%）
|
《0.1
|
《0.1
|
《0.1
|
《0.1
|
《0.1
|
Packaging
Metal drum or plastic drum: 20kg, 25kg and 200kg
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