Introduction of Mold Making Condensation Silicone Rubber Series 

RTV-2 is a two-component Room-Temperature-Vulcanizing (RTV-2) silicone rubber. Depending on its curing mechanism, two types of RTV-2 are available: "condensation" cure type and "addition" cure type. RTV-2 Silicone Rubber Series for Mold Making is made up of two-component materials, they are Part A base silicone and Part B CA30 curing agent. The 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 mold: plaster, polyurethane, PU, GRC, cement, resin, polyester, wax etc...

Specifications of MC RTV-2 Silicone Rubber

Room Temperature Vulcanization

Equipped with REACH certificate

Professional technician with rich experience

4% catalyst offers for free of charge

Silicone hardness range: 10-60 shore A

High duplicating silicone molds

Characteristics of Mold Making Condensation Silicone Rubber Series 

1. Good flow ability and long working time for better operation

2. Medium hardness for easy demould

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 Mold Making Condensation Silicone Rubber Series

RTV-2 silicone rubber can be applied in many objects mold making, since the RTV-2 silicone has good flow ability and medium hardness, and the silicone can cure at room temperature, thus it's a good material for duplication.

RTV-2 Silicone rubber can be used for artificial stone mold making. For example, RTV2030, RTV2066 and RTV2088 silicone.

RTV-2 Silicone rubber can be applied in candle and soap mold making, such as RTV215 and RTV218 silicone.

RTV-2 Silicone rubber can be used for plaster mold making, such as RTV2025, RTV2028 and RTV2030 silicone.

RTV-2 Silicone rubber can be applied in the field of shoe sole mold making, for example, RTV3010 and RTV3015 silicone.

RTV-2 Silicone rubber can be used for prototyping and electronic potting.

RTV-2 Silicone Rubber Series for Mold Making can be usd in the field of reproduction of cement molding, concrete stones, artificial stones, plaster molding, figures, art objects, decoration molding, GRC products, gypsum products, resin products, PU molds. Etc.

Instructions for Making Silicone Molds

1. Make sure the surface of the original is clean and free of loose material. 

2. Weight 100 Part A base and 2 parts of CA30 Curing Agent in a clean container.

3. Stir Part A base silicone before use thoroughly , as filler separation may occur upon prolonged storage.

4. Mix Part A and Part B evenly until the CA30 completely dispersed in the base. 

5. Pour the mixed Part A base silicone and CA-30 curing agent as soon as possible onto the original

6. De-mold after 24 hours ,it is will improve the replicate times of silicone mold.

Note:It is strongly recommended that entrapped air be removed in a vacuum chamber, allowing the mix to completely expand and then collapse. After a further 1-2 mins under vacuum, the mix 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.

Storage of Mold Making Condensation Silicone Rubber Series 

When the RTV-2 Silicone Rubber Series for Mold Making is stored at or below 30 °C(85 °F) in the original unopened containers, RTV2 Silicone Base and CA30 Curing agent have a usable life of 12 months from the date of production. After 12 months,please use a stirring mill to stir the Part A silicone for some minutes, then the silicone can be use again, no influence for other performance.

FOQ of RTV-2 Silicone Rubber for Mold Making

Why does the RTV liquid silicone rubber for molding have few mold making times?

The silicone rubber mold has few molding times is due to follwoing reasons: adding too much silicone oil which will destroy the molecular of silicone rubber; making the mold for small and fine detailed products with higher hardness silicone rubber which is easy to break; making the mold for large products with soft silicone rubber which will reduce the tensile and tear strength of the mold, and the mold will have deformation. Thus, we should take the proper silicone rubber to make the mold for suitable products.

The information above is just for reference, if you're interested or have any questions, please feel free to contact Nicole:

Web:www(dot)mcsilicone(dot)com

E-mail:nicole(at)mcsilicone(dot)com

Skype:nicoleszmc

MSN: nicoleszmc (at)hotmail(dot)com