Concrete Molds Making Condensation Silicone Rubber

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Product detail:

Introduction of Concrete Molds Making Condensation Silicone Rubber 

 

Concrete Molds Making RTV Silicone Rubber is a kind of two-component material, that is the moldmaking silicone rubber is made up of Part A base silicone and Part B CA30 curing agent. The mixed Part A base silicone and Part B curing agent can cure at room temperature by a condensation reaction,and the become a siliconer rubber mold that can be used for objects reproduction.These  RTV-2 silicone rubber molds can be cast into different material for your target objects.The pouring material can be plaster, polyurethane, PU, GRC, cement, resin, polyester, wax etc...

  

Specifications of MC RTV-2 Silicone Rubber

 

Equipped with REACH certificate 

Professional technician with rich experience 

4% catalyst is offered for free of charge  

Silicone range:10-60 shore A  

High duplicating silicone molds 

 

Characteristics of Concrete Molds Making Condensation Silicone Rubber

 

1. Good flow ability 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 Concrete Molds Making Condensation Silicone Rubber 

 

Concrete Molds Making RTV Silicone Rubber can be applied in the reproduction of cement molding, concrete stones, artificial stones, plaster molding, figures, art objects, decoration molding, GRC products, gypsum products, resin products, PU molds. Etc.

  

Technical datasheet of Concrete Molds Making Condensation Silicone Rubber

Base and Curing Agent Mixture (100:2 by weight) in 25 °C (77F) testing

 

Item No.	RTV 2066
Color	off-white
Curing agent	CA30
Mixing ratio	100:2
Mixed viscosity	25000~26000 cps
Pot life	20-30 mins
Curing time	2-3 Hours
Hardness	28-30 Shore A
Tear Strength	27 N/mm
Tensile Strength	≥3.8 Mpa
Relative density	1.09~1.15 g/cm3
Shrinkage	≤0.3%
Elongation at break	420%
Methods of molding	Brushing/Pouring

 

  

 

Instructions of Concrete Molds Making Condensation Silicone Rubber 

 

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.

 

Shortage of Concrete Molds Making Condensation Silicone Rubber 

 

When the Concrete Molds Making RTV Silicone Rubber 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.

 

 

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