Detailed Product Description

Brushable silicone rubber(RTV-2) applicate:
Production mold casting wax, gypsum, concrete or resins (urethane, polyester,
etc. ). Applications include reproducing sculpture, architectural restoration,
making candle molds, casting pewter, place couldnt pour rubber over the above
etc. For make a mold by brushing (or spraying) rubber onto the model. Rubber
will hold a vertical surface and will reproduce the finest detail brushed onto
the model in layers until a suitable thickness is built up. The rubber is
allowed to cure and a support shell is applied prior to demold. The advantage of
making a mold by brushing rubber onto the model is that it minimizes the amount
of rubber used, saving material costs.
 
Sprayable Rubber For making fast sprayed rubber molds that have the best release
properties for production casting of resins, plaster, etc. It is a tin silicone
rubber that self-thickens for making concrete Spray able -on molds. Properly
applied, Mixed 100A: 5B by weight, rubber quickly develops thixotropy when mixed
in air. Cured with negligible shrinkage to a durable mold rubber good for
production casting resins, foams, concrete, plaster and other materials.
Application of a support shell is achieved by spraying over the rubber mold
after it has fully cured.
Silicone Putty: Mix & Apply By Hand Silicone putties are two-component, tin-cure
silicone putties that can be applied "on-site"--directly to almost any model;
Capturing the finest detail and curing within minutes. Silicone Putty has been
used to make molds of valuable antiques and archeological models and can be used
to make fast molds of sculpture, prototypes, candles, picture frames, coins,
etc. Also can cast wax, gypsum and a variety of resins into Putty molds.

Model: 788 silicone rubber
Appearance: White
Mixing proportion of curing agent(%) 2
Operating time ( hours ): 0.5
Curing time( hours ): 2-4
Hardness (shore A): 28-32
Viscosity (CS): 28000-30000
Tensile-strength ( kgf /cm2 ): ≥35
Tear-strength (kgf /cm2 ): ≥20
Elongation-break(%): ≥ 470
Retractility(%): ≤0.3
Packing (kg/pail ): 25, 200
 
The datasheet just for reference,need more information,please feel free to
contact us,we can produce silicone follow your request.
 
Silicone rubber 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.
 
Whatever you have any request or questions, pls feel free to email me or call
me.
Tel:0086-13691994072Web:www(dot)zsrl(dot)net