RTV-2 White Liquid Silicone Rubber For Tyre Mold Making,Mixing Ratio 100:3

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Company Profile

Shenzhen Rongxingda Polymer Material Co.,Ltd

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Contact: rongxingda(Mr.)  

Email: info@rx-si.com

Telephone: +86-755-29815831

Phone: 15217791777

Area: Beijing

Address: Beijing

Website: http://www.rx-si.com/ http://rongxingda.cn-jingyun.com/

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Product details
Quick Details
  • Place of Origin: China (Mainland)

  • Brand Name: RXD

  • Model Number: RTV820

  • Appearance: liquid

  • Color: White

  • Mixing ratio: 100:3

  • Hardness: 20±2A

  • Viscosity: 18000±2000 mPa.s

  • Elongation: >500%

  • Tensile strength (Mpa): >3.6 MPa

  • Tear strength: >28 N/mm

  • Certificate: RoHS.MSDS.SGS ISO9001:2000

  • MOQ: 200kgs

Packaging & Delivery

Packaging Details: 1kg/5kg/20kg/25kg/200kg plastic/iron drum,and please contact your local contact for further
information on packaging size and availability.
Vacuum bag can take according to users demand.
Delivery Detail: 5 days

Product Description


Pourable ,Condensation Cure Mold Making RTV2 Silicone Rubber
Condensation tin cure molding silicone rubber, Tin-based silicone, also called condensation-cure silicone, are two-component materials which cure at room temperature (RTV) to flexible, high tear-strength rubbers. Tin cured silicone can be poured onto models or they can be made brush-able by adding a Thixotropic additive. They are ideal for molds where easy release or high temperature resistance is required.


Condensation Cure Mold Making RTV2 Silicone Rubbers can be poured or brush onto products for casting polyurethane,epoxy, polyester resin, gypsum/plaster, cement, waxes, low melt alloys/metals, etc.


• Excellent tear strength

• Very high elongation and flexibility

• Little rate of deformation and shrinkage

• High temperature resist,high tear resist

Physical properties of Condensation Cure Mold Making RTV2 Silicone Rubber

Appearance Mixing Ratio By Weight Pot life Time De-mold Time Full Curing
C4 Clear 100:2 60-70 min 6 Hours 10 Hours
Clear 100:3 30-40 min 4 Hours 8 Hours
Clear 100:4 15-20 min 2 Hours 5 Hours

Antioxidant Agent:

RTV2 silicone Antioxidant agent,mix ratio with silicone rubber at 0.5%-1%,it can great increase about 30%-100% using times of silicone mold and make the silicone rubber with high heat resistance and solvent resistance.

Thixotropic agent

Thickening agent for silicone rubber for vertical surface application(making brush-on molds)

Detailed Images

Preparing the Model

Porous surfaces, such as wood, should be dried and sealed. Also applying a release agent, such as petroleum jelly will aid in easy release of a silicone mold. Because silicone can sometimes bond to surfaces which contain silica, such as glass, cements and natural stone; it is recommended to do a spot test for possible adhesion.

color White
Tensile strength >3.6 MPa
Viscosity 18000±2000 mPa.s
Elongation at break >500%
Density at 23℃ 1.08 g/cm³
Tear strength >28 N/mm
Hardness Shore A 20±2
Linear shrinkage <0.3%

Mixing: Charge 100kg by weight of “Part A” and 3kg by weight of “Part B” into a clean, compatible metal or plastic container. The volume of the container should be 3-4 times the volume of the material to be mixed. This allows for expansion of the siloxane material as it de-gasses. Mix thoroughly by hand or with mixing equipment while minimizing air entrapment until a homogeneous mixture is obtained. This will occur when the material takes on a uniform color with no visible striations. Scrape the sides and bottom of the container thoroughly several times while mixing. Once mixing is complete it is recommended that the material be de-aired 2-3 times by intermittent evacuation for a few minutes to minimize any imperfections due to bubbles in the cured material. Typically after releasing the vacuum 2-3 times the mass will collapse on itself at which time the vacuum should be left on only 2-4 minutes longer.

Our Company

Dongguan Rongxin Silicone Technology Co., Ltd. was founded in 1999, and is located in Dongguan, Guangdong. We are a professional silicone material manufacturer, integrating the R&D, production and sales. 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 I S O, RoHS, Reach and SGS certificates. Our customers are from all over the world. If you are interested in our products, please feel free to contact us for further information.

Packing & Delivery

Packing information

1kg/5kg/20kg/25kg/200kg plastic/iron drum,and please contact your local contact for further information on packaging size and availability. Vacuum bag can take according to users demand.Safety-Avoid contact with mucous membranes and eyes. Best method of cleanup is by wiping with disposable paper towels and washing with waterless hand cleaner, then soap and water. If solvents must be used, denatured ethyl alcohol is best, but should be handled with respect for health and flammability hazards.


Contact Info

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Pls don't hesitate to contact Carol more information:
Carol zhu

QQ: 2355425281

Skype: carol(at)rtv-2.net


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