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High strength silicone mold making rubber (30 shore A)

High strength silicone mold making rubber (30 shore A)

Price : USD 6.5~9.0/kg
Packaging Details : 20kg/drum
Delivery : shipping
MOQ : 100kg
Place of Origin : China
Model Number : HY-E630
Category : Silicone Rubber
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Detailed Product Attribute
Model : HY-E630#
Appearance : Translucent
Mixing Ratio : 11
Hardness (A°) : 30±2
Density ( g/cm 3 ) : 1.08
Elongation-break(% : 500

1.Mainly application of silicone mold making rubber

Silicone mold making rubber is a two part silicone rubber and curing with tin catalyst. As with alow viscosity, high strength and excellent duplication times, it's widely usedfor concrete casting and cement products casting, making silicone molds for artificialstone, concrete statue molds, garden statue molds, stone molds, cement crafts, GRC/GPRdecorations, ect

The quality of ourrtv silicone rubber is similar with Dow corning silicone, Wacker silicone, smoothon silicone, but the prices of our silicone rubber is more competitive thanthem.

2. Features of RTV silicone mold making rubber  

a. low viscosity

b. easy operation

c.long shelf life over 12months

d. high strength and lowshrinkage

e. curing at room temperaturewithin 2-4hours

f. high duplication times andno deformation

3. How tomaking stone mold with RTV silicone mold making rubber ?


Select a mixing container 4-5times larger than the total volume of material to be mixed.

Weigh out the selected siliconrubber and catalyst. Stir for several minutes scraping the sides andbottom of the container carefully to produce a homogeneous mixture.

When using power mixers, avoid excessivespeeds, which could entrap large amounts of air or cause overheating of themixture, resulting in shorter pot life.

The air entrapped in the mixing stepneeds to be removed to eliminate voids in the cure product. This can be done byexposing the material to a vacuum of 10-20 mbar. The material will expand,crest and reduce to about the original level. Degassing is usually completeabout two minutes after frothing ceases.


After mixing the twoparts combination, the material will cure at room temperature. Selection ofthe Beta will determine cure speed, the work life as well as the demouldingtime.

The system is sensitive to changes inheat and humidity and therefore variations in cure speed may be seen if one orboth variables are changed.

Handling and SafetyMaterial Safety Data Sheets are available upon request.

SHELF LIFE: Twelve (12) months from dateof shipment when stored at 24°Cin original unopened packages.  

PACKAGE:Packed in clean 20kg/pail,  200kg/pail.

For more information, please call me, let’s talk more.


FAX: 0086-755-89948030

MOBILE: 0086-18938867585


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