PlatinumcureSilicone rubber rtv2 for artificial stone molds

1.Description
YJS-640 platinum cure silicone is a kind of two part silicone rubber in addition cure or platinum cure type with mixing ratio of 1:1 or 10:1.  It can cure at room temperature as well as under heat. It's a kind of food grade silicone and mainly used for mold making.

2.Application

YJS-640 silicone rubber is mainly used for making molds of Jewellery, tire, concrete stone, GRC, 

Polyurethane products; wax, candle decoration; rapid prototyping and tire molds; chocolate, candy and similar products.

 

3. Technical Parameters

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)	30-40mins
Curing time	25 °C (77F)	3-4 hours
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%

 

4. Characteristics 

*An exceptional fluidity and good operability, easy to demold
*Good tensile and tear strength
*Outstanding bubble releasing
*Non-deformation
*Low shirinkage
*Aging resistance,high temperature resistance (200℃)
*Environmentally, food-grade

5. Warm Tips 
as addition cure silicone is a kind of platinum cure system,which will be easy to cause uncured problem,so kindly follow the tips below:
.Do not mix  with liquid condensation silicone rubber or even the tool which used for condensation silicone;
.Do not mix  with organic matter which contains N, S, P organics and ionic compound like Sn, as,Hg, Ph;
Do not add any pigment or powder into the addition cure silicone rubber without any testing to prevent uncured problem.

 

6.SHELF LIFE:

When stored at or below 32°C (89.6°F) in the original unopened containers, G-8 series Silicone have a usable life of 12 months.

 

7.Package

1 kg/drum; 20 kg/drum;25 kg/drum;200 kg/drum.