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Product Name: Tin Cure Silicone for Concrete/Cement/Stone Moldmaking

Product Model: XB-725#, XB-730#, XB-735#, XB-740#

Product Description:

The Silicone Rubber items above are the kind of liquid RTV condensation cure for mold making with two parts, part A is the silicone rubber base, part B is the condensation curing agent.

And the last two numbers means the hardness. Usually, the silicone with medium hardness would be choose to make mould for the Concrete/Cement/Stone, or artificial stone, culture stone, concrete stamping or paving.

The mixing ratio is 100:3, and generally 3% free catalyst would be offered. But in the same mixing ratio, the higher the temperature is, the faster the silicone rubber would be cured. So, please add the catalyst accordingly.

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* Excellent fluidity, easy to operate

* Good tear and tensile strength

* Excellent resistance to weather, temperature, acid and alkali

* Not oily, low shrinkage

* Durable and high duplication times

* Popular products in the world-wide market with high repo ration


With the medium hardness, they can be used to make molds for the products in medium size:

for concrete/stone/cement/brick mold making

for plaster/gypsum/GRC/GRFC mold making

for resin/PU/bronze mold making

for casting/sculpture/figurines/statues/art mold making

for architecture/decor/furniture mold making

for plaster line/cornice/roman column mold making

Technical Parameters
Model NO· XB-725 XB-730 XB-735 XB-740
Mixing Ratio (by weight) 100:3 100:3 100:3 100:3
Appearance/Color White White White White
Hardness (Shore A) 25±2 30±2 35±2 40±2
Mixed viscosity(mPa·s) 16000±500 20000±500 20000±500 18000±500
Working Time(at 23℃/75℉, MINS) 30~40 30~40 30~40 30~40
Curing Time(at 23℃/75℉, HRS) 3~5 3~5 3~5 3~5
Tensile strength, Mpa ≥4.2 ≥4.0 ≥4.0 ≥3.9
Tear strength, KN/m ≥28.5 ≥25.2 ≥19.5 ≥19.5
Shrinkage, % <0.2 <0.2 <0.2 <0.2
Elongation at break,% ≥550 ≥480 ≥480 ≥300
Additional Information

More detailed information about purchase the liquid sillicone rubber from Sibetter Silicone Factory:


1) Small size packages

5kg/set——5kg/jar with 15g catalyst

10kg/set——10kg/jar with 30g catalyst

2.General size packages

20kg/set——20kg/pail with 600g catalyst

25kg/set——25kg/pail with 750g catalyst

20kg/set——200kg/pail with 1000g catalyst

Price Terms: EXW, FOB, CNF, CIF, DDU

Payment: L/C, T/T, Wester Union, Paypal, Cash

Delivery Details: within 5days after receiving the bank slip

Transportation: Sample by express via air, goods by logistics via air or sea

Sea Port: Guangzhou, Shenzhen, Hongkong

Supply Ability: 3 tons/day

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