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Home Casting & Forging Products China Supplier: Concrete Casting Silicone Rubber/RTV-2 Silicone Rubber for Mold Making/Sculpture Mold Making Silicone Rubber

China Supplier: Concrete Casting Silicone Rubber/RTV-2 Silicone Rubber for Mold Making/Sculpture Mold Making Silicone Rubber

China Supplier: Concrete Casting Silicone Rubber/RTV-2 Silicone Rubber for Mold Making/Sculpture Mold Making Silicone Rubber
Price: US $ 5.7USD/KG
Trade Terms: FOB,CFR,CIF
Min Order: 200kg
Pay Type: L/C,T/T,Paypal,Western Union
Prod Model: Mcsil-2030
Markets: North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Item: Mcsil-2030
Color: off-White
Mixing Ratio: 100:2
Mixed Viscosity: 24000-25000 Cps
Working Time: 30-40 Mins
Curing Time: 4-6 Hours
Hardness: 28-30 Shore a
Tear Strength: 30n/Mm
Tensile Strength: 3.8 MPa
Elongation At Break: 480%
Material: Silicone Rubber
Raw Material: Silicone Raw Material
Appearance: Liquid

Product Description

Description of Sculpture Mold Making Silicone Rubber

RTV-2 silicone rubber is a two-component material, this kind of silicone rubber consists of Part A base silicone and Part B CA30 curing agent, and Part A base silicone and Part B curing agent can cure at room temperature by a condensation reaction. These materials can be cast into the cured silicone molds: Plaster polyurethane, PU, GRC, cement, resin, polyester, wax etc...
 
Features of Sculpture Mold Making Silicone Rubber

1. Good flowability and long working time
2. Medium hardness
3. High tear and tensile strength
4. Easy de-mould from complex replica parts
5. Acid and alkali-resistance
6. Low linear shrinkage

Applications of Sculpture Mold Making Silicone Rubber

MCSIL-2030 and MCSIL-B230 silicone rubber is suitablr for plaster, statues, sculpture and GRC mold making. MCSIL-2030 is suitable for pouring and MCSIL-B230 silicone is suitable or brushing on.


How to make the silicone mold? 

1. Preparing
The surface of the original objects should be clean and free of loose material. If your products have thin flower patterns, and especially have porous substrates, please use a suitable mold release agent such as soap water, detergent, Vaseline or petroleum jelly. 

2. Mixing
Please weigh Part A silicone base and part B CA30 Curing Agent with ratio of 100: 2 into a clean container. Stir Part A base silicone thoroughly before use, then Mix Part A and Part B evenly until the curing agent completely dispersed in the silicone base. Manual or mechanical mixture can be used, but do not last much time or allow the temperature to exceed 35C (95F). It's suitable to mix small quantities to ensure thorough mixture of silicone base and curing agent. 
Note: It is strongly recommended that entrapped air be removed in a vacuum chamber, allowing the mixture to completely expand and then collapse. After a further 1 to 2 minutes under vacuum, the mixture should be inspected and can be used if free of air bubbles. A volume increase of 3-5 times will occur on vacuum de-airing the mixture. So a suitably large container should be chosen. 

3. Pouring the mixture and curing
Pour the mixed Part A base silicone and CA-30 curing agent as soon as possible onto the original object, avoiding air entrapment. The catalyzed material will cure to a flexible rubber within 6 hours (or faster by different mixing ratio or room temperature), we advice you de-mold after 24 hours, it is will improve the replicate times of silicone mold. 


Packing of Sculpture Mold Making Silicone Rubber

Part A base silicone: 20kg/drum, 25kg/drum or 200kg/drum
Part B CA30 Curing Agent: 0.25kg/bottle, 1kg/bottle and 10kg/bottle

Storage of Sculpture Mold Making Silicone Rubber

When the RTV-2 silicone rubber is stored at or below 30 C (85F) in the original unopened containers, Silicone Base and CA30 Curing agent have a usable life of 12 months from the date of production. 

Note of Sculpture Mold Making Silicone Rubber

RTV2 silicone rubber is an industrial product and must not be used in food molding, dental human skin molding applications. 


Need more information, please feel free to contact Sophie.
Item No.MCSIL-2030
Coloroff-white
Curing agentCA30
Mixing ratio100:2
Mixed viscosity24000-25000 cps
Pot life30-40 Minutes
Curing time 4-6  Hours
Hardness28-30 Shore A
Tear Strength30 N/mm
Tensile Strength3.8 MPA
Relative density 1.15 g/cm³
Shrinkage≤0.3%
Elongation at break480%
Methods of moldingPouring



We are manufacturer, and specialized in manufacturing different hardness, different viscosity silicone rubber series. We can offer all kinds of silicone rubber for your request! Any interesting, please feel free to contact us. Welcome to join us, We will always at your service.

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  • Mingcheng Group Limited

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