China Manufacturer RTV-2 liquid silicone rubber for gypsum molds

FOB Reference Price:Get Latest Price
US $5.2-7.5 / Kilogram | 200 Kilogram/Kilograms small quantity as for trial order is accepted (Min. Order)
Supply Ability:
6 Ton/Tons per Day /Welcome to visit our silicone factory
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Quick Details
Place of Origin:
Guangdong, China (Mainland)
Brand Name:
Model Number:
3910 0000
white liquid silicone rubber
Mixing ratio:
Delivery time:
3 days after payment
low viscosity
supply ability:
6 tons/day
Shore 35A
shelf life:
12 months
Packaging & Delivery
Packaging Details
1kg/drum, 5kgs/drum,10kgs/drum,20 kgs/drum,25kgs/drum,200kgs/drum
Delivery Time
Shipped in 3 days after payment

 liquid RTV-2 silicone rubber for gypsum casting molds 

Product Pictures



1.Description of  RTV-2 silicone for gypsum molds 

C835 Silicone rubber is tin cure silicone rubber for mold making. The silicone rubber will be cured under room temperature, It’s two-components, the mixing ratio is 100:2 . Part A is a flowable liquid silicone , part B is the catalyst. It has an exceptional fluidity and good operability. 


2.Characteristics of  RTV-2 silicone for gypsum molds

*An exceptional fluidity and good operability, easy to demold
*Good tensile strength and tear strength
*soft hardness
*copy detailed pattern
*good flexibility


*long shelf-time &lifetime


Tin cure application

Tin cure silicone for industrial mold making :

soap mold , candle mold ,

gypsum mold , plaster mold ,

stone mold , concrete mold , cement mold, stamp mold , brick mold 

statue mold ,sculpture mold , resin craft mold

gypsum casting mold , GRC casting mold , fiberglass casting mold

jewellry mold , bronze casting mold

shoe sole mold , tyre mold

articial wooden mold , climb hole mold 


C835 Silicone rubber is mainly suitable  middle sized product and big size with simple pattern


4.Datesheet of RTV-2 silicone for gypsum molds


Item No.AppearanceHardness (shore A°)Viscosity (CPS)Tensile-strength( kgf /cm2 )Tear-strength (kgf /cm2 )Elongation-break(%)Mixing ratiooperation time (25 ℃ )Curing time( 25 ℃)shrinkage
C-835White35±222000±1000≥55≥22≥500100:220-30 mins2~3 h≤0.3%


5. Using instructions of   RTV-2 silicone for gypsum molds


Step 1: prepare and clean the prototype.
You must make sure your original molds perfect. fix the original mold on a board , then using some assistant material(like cardpaper) to make a frame for to surround the prototype. The frame is no need ,if we make the mold by brushing way .


 Step 2: Take the silicone and catalyst as the ratio 100:2 (silicone:catalyst=100:2) ,mix the silicone rubber and catalyst evenly.
*Notes: Molding silicon rubber is a kind of flowing liquid and it contains two parts. Part A is a kind of flowing liquid and part B is the curing agent. Remember to mix part A and part B evenly, otherwise the silicon rubber will be partly solidified and this will bring troubles for your final operation. What’s more, the finished molds will have a short life. All of these will cause a waste of silicon rubber.


Step 3: Vacuum pumping

After mixed the silicone evenly, it is better to release the bubble by Vacuum pumping.

Step 4: Pouring cast or brushing cast

After released the bubble, we can pour/brush the silicone rubber on the prototype
*Notes:Please finished all the steped within the operation time .If not it will cause cross linking reaction, and no more further steps will be available.So,we have to pay attention to the pot life and curing time.


How to make mold ??

View the molding video from our company website.



Packaging & Shipping


1kg/drum,5kgs/drum,20kgs/drum,25kgs/drum,200kgs/drum based on vacuum packing.

Shelf life and transportation

1. Twelve(12) months when stored at 25C in tightly closed original packages.

2. This kind of product is non-dangerous product, which could be transported as general chemicals.


why choose us ??

1.Free Sample for testing 

2, after-sale service support

3.Technical Support

4.Engineers Site Instruction

5.New products developing

6.New Market developing

7.Factory Visiting Reception

8.China visiting reception

9.China Latest silicone news

10.Related Products Purchasing Assistance

11.More than 13 years experience in producing liquid silicone rubber


Company Information


7.Company Profile of GUOCHUANG Silicone

Dongguan Guochuang Organic Silicone Material Co., Ltd. established in 2009, is a Science and technology corporation which is engaged in production, R & D, and sales of silicone rubber and silicone mold. We sets up HongKong GuoChuang silicone technology Co.,Ltd., other affiliated enterprises in 2015.


We have passed ISO9001:2008 Quality Management System. We have five main groups of people: R & D team which is rich in theoretical knowledge and work experience; sales team who are proficient in several languages and with high level of business & after-sale service;With such a team, we promote our silicone rubber to Southeast Asia, Europe, the Middle East , the America and etc, and our silicone rubber is well-received by the customers from more than 40 countries and regions.

We believed that we can really provide you the high quality and competitive price , and even the technical support and perfect after-sales service.We will offer the best solutions to promote both of our business and make the win-win situations.Thanks !



Any questions, pls feel free to contact us , it will be our great pleasure at service for you:

E-mail: bella(at)gcsilicone(dot)com
Whatsapp: 0086-15926047462