RTV Silicone Rubber

Category Archives: RTV Silicone Rubber

Alchemie are the proud U.K. distribution partner for Shin-Etsu RTV silicone rubber, a relationship that was formed some 18 years ago. We are able to offer an extensive range of both RTV addition cure and RTV condensation cure silicones for the mouldmaking industry. Alchemie also manufacture RTV condensation cure silicone for the potting and encapsulation of electronic components. If you are unable to locate the product you require please contact us directly.

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Code
Description
8806
ALCHEMIX 8806 is a non reactive silicone oil used for viscosity and hardness adjustment of RTV silicone rubbers
RTV 130
ALCHEMIX RTV 130 is a white two component, low strength rubber.
RTV 134
ALCHEMIX RTV 134 is a two-component condensation cure, low viscosity silicone rubber. Suitable for mould making, producing replicas of polyester, epoxy resins, urethane foam and wax etc. It can precisely reproduce the shape of the original model. ALCHEMIX RTV 134 has exceptionally high tear strength and good elongation.
RTV 136
ALCHEMIX RTV 136 is a two-component condensation cure, low viscosity silicone rubber. Suitable for mould making, producing replicas of polyester, epoxy resins, urethane foam and wax etc. It can precisely reproduce the shape of the original model. ALCHEMIX RTV 136 has exceptionally high tear strength and good elongation. There are a number of catalysts available for this product. .
RTV 137
ALCHEMIX RTV 137 is a two-component condensation cure, low viscosity silicone rubber. Suitable for mould making, producing replicas of polyester, epoxy resins, urethane foam and wax etc. It can precisely reproduce the shape of the original model. ALCHEMIX RTV 137 has exceptionally high tear strength and good elongation.
RTV 201
ALCHEMIX RTV 201 is a thixotropic agent to be used with ALCHEMIX RTV 240. When added to the silicone mixture it will thicken the material depending on how much agent is added.
RTV 232
ALCHEMIX RTV 232 is a low hardness addition cure silicone rubber with excellent clarity, low shrinkage, high temperature resistance and excellent tensile and tear properties.
RTV 240
ALCHEMIX RTV 240 is a two component addition cure silicone rubber with the facility to alter the Shore A hardness by the use of different catalysts.   Used for the moulding of complicated parts with precise dimensions. There is also a blue catalyst available for the product.
RTV 245
ALCHEMIX RTV 245 is a two component addition cure silicone rubber used for the moulding of complicated parts with precise dimensions, repetitive casting applications, ceramics, vacuum casting moulds and general mould making.  
RTV 250
ALCHEMIX RTV 250 is a two component addition cure silicone rubber with the facility to alter the Shore hardness by the use of different catalysts.   Used for the moulding of complicated parts with precise dimensions. There is also a blue catalyst available for this product.
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Product
Mix Ratio
(pbw)
Pot Life
(200g, 25°C)
minutes
Cure Time
(25°C)
Hours
Viscosity
(25°C)
mPa.s
HDT
°C
Shore
Hardness
8806
n/a
n/a
n/a
n/a
n/a
n/a
RTV 130
100:3
100-150
12-24
n/a
40A
RTV 134
100:5
See TDS
See TDS
20000-26000
n/a
23-27A
RTV 136
100:5
80-100
18-24
42000
n/a
26A
RTV 137
100:5
See TDS
See TDS
17000-23000
n/a
32-36A
RTV 201
1-3%
Variable
n/a
thixo
n/a
n/a
RTV 232
100:100
>40
24
40k-80k
N/A
23-3A
RTV 240
100:10
80-140
See TDS
30k-70k
N/A
35-45A
RTV 245
100:10
> 30
See TDS
30k-70k
N/A
36-45A
RTV 250
100:10
120
See TDS
100k
N/A
40A
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Code
Application
8806
  • Mould Making
  • Pad Printing
RTV 130
  • Electrical Encapsulation
  • Electrical Potting
  • Offshore and Undersea
  • Pad Printing
RTV 134
  • Fibrous Plastering
  • Model Making
  • Mould Making
  • Resin Casting
RTV 136
  • Concrete Moulding
  • Fibrous Plastering
  • Model Making
  • Mould Making
  • Resin Casting
RTV 137
  • Concrete Moulding
  • Fibrous Plastering
  • Model Making
  • Mould Making
  • Resin Casting
RTV 201
  • Model Making
  • Mould Making
RTV 232
  • Cases for Ceramics
  • Composites
  • Fibrous Plastering
  • Model Making
  • Mould Making
  • Vacuum Casting
RTV 240
  • Cases for Ceramics
  • Composites
  • Fibrous Plastering
  • Model Making
  • Mould Making
  • Vacuum Casting
RTV 245
  • Cases for Ceramics
  • Composites
  • Fibrous Plastering
  • Model Making
  • Mould Making
  • Vacuum Casting
RTV 250
  • Cases for Ceramics
  • Sanitaryware Moulds
  • Vacuum Casting