RTV Mold Making Silicone Rubber

1.Mainly application of RTV Mold Making Silicone Rubber  

RTV Mold Making Silicone Rubber is a two part silicone rubber and curing with tin catalyst. As with a low viscosity,high tear strength and excellent duplication times,it's widely used for concrete casting,cement products casting,Making silicone rubber molds for artificial stone,concrete crafts,cement crafts,GRC/GPR decorations casting.  

2.Features of RTV Mold Making Silicone Rubber  

a.low viscosity

b.easy operation

c.long shelf life over 12 months

d.high strength and low shrinkage 

e.curing at room temperature within 2-4hours 

f.high duplication times and no deformation

TDS of RTV Mold Making Silicone Rubber E630#

3.How to making stone mold with RTV silicone mold making rubber ?

Mixing:
Select a mixing container 4-5 times larger than the total volume of material to be mixed.
Weigh out the selected silicon rubber and catalyst. Stir for several minutes scraping the
sides and bottom of the container carefully to produce a homogeneous mixture. When
using power mixers, avoid excessive speeds, which could entrap large amounts of air or
cause overheating of the mixture, resulting in shorter pot life.
The air entrapped in the mixing step needs to be removed to eliminate voids in the cure
product. This can be done by exposing the material to a vacuum of 10-20 mbar. The
material will expand, crest and reduce to about the original level. Degassing is usually
complete about two minutes after frothing ceases.

Curing:
After mixing the two parts combination, the material will cure at room
temperature. Selection of the Beta will determine cure speed, the work life as well as the
demoulding time.

The system is sensitive to changes in heat and humidity and therefore variations in cure
speed may be seen if one or both variables are changed.

Why RTV silicone mold making rubber ?
Economic Use
As the most stable polymer available, silicones offer superior reliability, excellent service life and reduced production costs.
Versatile Application
Silicone rubbers cure in deep sections as needed for electrical potting and encapsulating, casting rubber parts, arts restoration, general handy crafts, lost wax casting process, plaster forms, seals, stage decorations, statuettes and many more.
Chemical Resistance
Silicones resist acids, bases, solvents, chemicals, oils and water.

Handling and Safety Material Safety Data Sheets are available upon request.

SHELF LIFE:Twelve (12) months from date of shipment when stored at 24°C in original unopened packages.  

PACKAGE:Packed in clean 20kg/pail,  200kg/pail.

Any questions about Silicone Rubber, Leah is at your service.

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