Condensation type mold
silicone rubber
100:2 two-component liquid silicone rubber belongs to condensation type
mold silicone rubber. When part A and B
are mixed in 100:2 weight, the crosslinking reaction can occur, and the elastic
body with certain hardness is formed after curing. It has many advantages, such
as good fluidity, easy to operate with low viscosity. After curing, it has heat
resistance, high temperature resistance, corrosion resistance, solvent
resistance, high tensile and tear strength, low linear shrinkage, high turning model
times. It is a cast of gypsum, cement, POLY-RESIN, PU, AB water, ABS material
of the elastic mold material, it is widely used in the production and
reproduction of sludge, toys, gifts, reliefs, statues, city sculpture, cement
products, hand plate, car model, model of home appliances, mold products such
as soap.
Technical data:
|
Model Numbe
|
Appearance
|
Hardness
(A)
|
Viscosity
(cps)
|
Tear strength
(KN/m)
|
Tensile strength
(Mpa)
|
Elongation
(%)
|
Mixing time
(Min)
|
Fully curing time (h)
|
Shrinkage
(%)
|
|
IOTA-800/900
|
White/
Semitransparent
|
0±2
|
8000～10000
|
5±2
|
2.03
|
580±50
|
15～25
|
8～10
|
≤0.3
|
|
IOTA-805/905
|
White/
Semitransparent
|
5±2
|
8000～10000
|
8±2
|
2.12
|
550±50
|
15～25
|
8～10
|
≤0.3
|
|
IOTA-810/910
|
White/
Semitransparent
|
10±2
|
8000～10000
|
10±2
|
2.46
|
500±50
|
15～25
|
8～10
|
≤0.3
|
|
IOTA-815/915
|
White/
Semitransparent
|
15±2
|
15000±2000
|
15±2
|
2.56
|
450±50
|
15～25
|
8～10
|
≤0.3
|
|
IOTA-820/920
|
White/
Semitransparent
|
20±2
|
20000±2000
|
20±2
|
2.57
|
420±50
|
15～25
|
8～10
|
≤0.3
|
|
IOTA-825/925
|
White/
Semitransparent
|
25±2
|
23000±2000
|
23±2
|
3.98
|
400±50
|
15～25
|
6～8
|
≤0.3
|
|
IOTA-830/930
|
White/
Semitransparent
|
30～35
|
25000±2000
|
22±2
|
3.17
|
300±50
|
15～25
|
6～8
|
≤0.3
|
Products
Procedure
1. Choose smooth material to make the mold frame, such as an acrylic plate.
2. According to the actual situation, the master module is put in the
frame and fixed.
3. Spray a little release agent in the female die and the die frame wall.
4. The silicone rubber and curing agent are mixed in 100:2 weight ratio and
fully mixed evenly.
5. Vacuum exhaust bubble treatment.
6. Pour the bubble in the mold into the mold box.
7. Put the model frame into the vacuum machine according to the actual
situation,. (optional).
8. Wait for stripping can be cured.
Precautions For Use
1. Before large-scale use, please do small amount of trial, familiar with
the production skills to avoid errors.
2. Do according to the manufacturer's instructions ratio for
quantity, and the weighing accuracy, please remember that the ratio is by
weight rather than volume. After the mixing of AB silicone rubber, stir it
fully to avoid not cure or incomplete cure.
3. If you want to speed up the curing time, you can heating up when liquid silicone
rubber initially solidified, but could not heating up immediately after pouring
which will cause non-curing because of the volatilization of curing agent.
4. When mixing the AB
silicone, mixing in the same direction. When pour glue, take a little bit of
the higher and same position on the female die on the same position, let the
glue flow flat on the master die, it will increase the flow time of the glue to
reduce the bubble.
