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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: Rongxingda Silicone
  • Model Number: RTV830
  • Application: Liquid silicone rubber for mold making
  • Color: white or translucent
  • Mix ratio: 100:3
  • Hardness: 30±2 Shore A of silicone rubber
  • Certificates: REACH,MADS,SGS,ROSH
  • Shelf life: 12 month
  • Pot life: Can be adjust as you require
  • Linear Shrinkage: low
  • Useage: Liquid silicone for making stone mold
  • HS CODE: 3910000000

Packaging & Delivery

Packaging Details 1kg/drum,5kg/drum,20kg/drum,25kg/drum or 200kg/drum of Part A base silicone rubber. 0.25kg/bottle,1kg/bottle and 10kg/bottle of Part B platinum Curing Agent.
Delivery Time Shipped in 12 days after payment

 Two Component Liquid Silicone Rubber for Concrete Mold Stone Mold Making


1 two component liquid Silicone rubber

2 liquid Silicone rubber for concrete mold making

3 liquid Silicone rubber for stone mold making


Product Description


RTV2 Silicon Rubber for Concrete Mold Making

Condensation molding silicone rubber


RTV-2 mold making silicone rubber is generally named as two-part silicone rubber that vulcanizes 

at temperature. Part A is a flowable liquid, part B is the catalyst.


Applications of Mold making silicone rubber for stone products:  


Mold making silicone rubber for stone products is mainly used in toys,gifts,decoration,plate engrave, human replica, art crafts, resin crafts,poly resin crafts,unsatured resin crafts, candle crafts, plastic crafts,stationeries,plaster crafts and Buddhist statue crafts,etc.


Features of Mold making silicone rubber for stone products:



• Very good flowability

• High Shore A hardness (approx. 30)

• Excellent tear strength

• High elongation and flexibility

• Little rate of deformation and shrinkage



RTV830 can be used in not only the field of common RTV 2 part moldmaking silicone. As the vulcanizing reactions of addition cure silicone is fundamentally different from tin cure silicone’s, it has no problem of deep vulcanizing or reverse reaction, or other problem. Therefore, our addition cure silicone is particularly applicable for plaster silicone molds, cement product mold, other molds even with big size, and so on. It features with lower viscosity, high strength , good fluidity, so it can also be very suitable for the replication for the models with precision and complex pattern. From the following information, you will get a full view of its performance.

• High temperature resist,high tear resist


Pictures of our products:







Basic description of Mold making silicone rubber for stone products:


Curing agent(working time and cured time at room temperature:25°C)

Ratio (Part A: Part B)100:2100:3100:4100:5
Mixing time (Mins)30-4020-3010-2010
De-mould time (H)6-84-62-41-2


Item No.Color




(Shore A)


strength (KN/m)



Elongation breack(%)

Linear Shrinkage





Packaging & Shipping




 RTV-2 Liquid Silicone Rubber  Packaging:



Part A(silicone):1kg/bottle,5kg/drum,25kg/drum,and 200kg/drum.

Part B(catalyst):40g/bottle,0.2kg/bottle,1kg/bottle,and 2kg/bottle.



Package detail of RTV-2 Liquid Silicone Rubber  :






Our Services


Free sample can  be available

Different type of catalyst is available according to customer's specific requirements.


Certifications of RTV-2 Silicone Rubber :




Company Information


   Dongguan Rongxin Silicone Technology Co., Ltd. was founded in 1999, and is  located in Dongguan, Guangdong. We are a professional silicone material manufacturer. Main products are Condensation molding silion rubber, Addition molding silicone rubber,Addition electronic potting silicone rubber,Condensation electronic potting silicone rubber,leather printing roller silicone rubber,LED strip light silicone rubber,human casting silicone rubber and so on. All of our products are with high quality and have got ISO, RoHS, Reach,MSDS and SGS certificates. Our customers are from all over the world. If you are interested in our products, please feel free to cont act us for further information.






FAQ for Mold making silicone rubber for stone products:


Why the silicone mold just can be reproduced for a few times?


a.Adding too much silicon oil into silicon rubber .silicon oil is an additive which destroies the molecular weight of silicon rubber and reduce the tension and tear strength.


b.Using the silicon rubber a high hardness to make molds for small sized products with delicate and intricate designs and the silicon rubber with a low hardness to make molds for large sized products with simple designs. so we should choose the silicon rubber specifically according to the requirements of our products to avoid this problem.


please contact us with any questions you have, you can call us directly.





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