RTV-2 molding silicone applications
RTV -2 molding silicone use in mold making field for toy gifts and craftwork gifts, poly technique, lightings, candles, and molds in multiple pieces.

RTV-2 molding silicone features
Silicone rubber with the advantages of good tensile strength, high tear strength, high temperature resistance, high duplication times and repeated use, etc. It is suitable for small products or fine and precision products which is difficult to demould. This silicone rubber is one of the products with the highest use level in the production of craftwork gifts and the shrinkage is up to 2.

RTV-2 molding silicone rubber typical properties:
Silicone Rubber (RTV-2) for Mold Making 638#
Appearance: White
Mixing proportion of curing agent(%): 2%
Operating time( hours ): 0.5
Curing time( hours ): 2-4
Hardness (A): 22-28
Viscosity (CS): 25000-30000
Tensile-strength( kgf /cm2): ¡Ý37
Tear-strength (kgf /cm2 ): ¡Ý28
Elongation-break(%): ¡Ý 540
Retractility(%): ¡Ü0.25
Packing (kg/pail ): 25, 200
Silicone rubber (rtv-2) for mold making 728#:
Hardness(A): 22~24
Tensile strength (kgf/cm) ¡Ý32
Tear Strength (kgf/cm) ¡Ý20
Elongation break: (%)¡Ý500
Retractility (%): ¡Ü0.3
Curing agent mixed rate(%): 2-3
Operate time(min): 30
Curing time(hours): 2-4
Silicone rubber (rtv-2) for mold making 788
Appearance: White
Viscosity(cs): 12000-15000
Hardness(A): 35-40
Tensile-strength (kgf/cm) ¡Ý 16
Tear-strength (kgf/cm) ¡Ý 8
Elongation break: (%)¡Ý200
Retractility (%): ¡Ü0.3
Curing agent mixed rate(%): 2-3
Operate time(min): 30
Curing time(hours): 2-4

Using instruction:
Component A is white flowing liquid and component B is the curing agent. For example, take silicone rubber of 100g and add 2g curing agent for mixing evenly (silicone rubber and curing agent must be measured accurately). After the silicone rubber and the curing agent are completely mixed, put the silicon into a vacuum machine for deairing to remove the bubbles. After deaired, pouring the liquid silicone rubber into the product to be duplicated or into the mold frame. If you don't have vacuum machine, please add 1.2% or 1.5% curing agent so that the bubbles can bubble itself. Since the less curing agent you add, the slower the mould will curdle, the bubbles will bubble out itself.

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