YJS-640 A/B High Strength Silicone Rubber for Molding
Category: Jewelry Molding Silicone  Publish Time: 2018-08-07 10:32 
YJS-640 A/B is a two-component, addition cure liquid silicone rubber designed for mold making. YJS-640 A/B cures at room temperature to a translucent high strength elastic rubber with the addition of curing agents.
1.Description:
YJS-640 A/B is a two-component, addition cure liquid silicone rubber designed for mold making. YJS-645 A/B cures at room temperature to a translucent high strength elastic rubber with the addition of curing agents.

2.KEY FEATURES
*Excellent molding durability to epoxy resin and polyurethane
*Excellent release ability
*Low viscosity
*Excellent tear and tensile strength
*Low shrinkage (room temperature cure)

3.APPLICATIONS
*Prototype mold making for electric & electronics industry such as TVs, Home appliances, mobile phones, copy machines etc
*Prototype mold making for automotive industry such as console boxes, radiator grilles, lamp housings etc

4.TYPICAL PROPERTY DATA
Typical general characteristics
Inspection Method
Value
Product data (Catalyzed A+B)
YJS-640
Hardness
Shore A
40±2
Mix Ratio
A:B
1:1/10:1
Color
/
translucent
Pot life
25 °C (77F)
30-40
Curing time
25 °C (77F)
3-4
Mixed viscosity
mPa.s
9000±1000
Tear-strength
kg/cm
12±2
Tensile-strength
M.pa
6.0±1.0
Elongation
%
450±50
Shrinkage
%
0.1

5.Appearance
Part A: a non-toxic and odorless liquid with translucent color and platinum inside.
Part B: a non-toxic and odorless liquid with translucent color.
ATT: We can do any curing time as your requirements.

6.SHELF LIFE:
When stored at or below 32°C (89.6°F) in the original unopened containers, YJS-6 series Silicone have a usable life of 12 months.

7.Package
1kg/drum; 5kg/drum;10kg/drum; 20kg/drum;25kg/drum;200kg/drum.
 


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