RTV Silicone Rubber for Mold Making(polyster crafts)

Usage of rtv silicone rubber for mold making

rtv silicone rubber for mold making for PU/poly resin, unsaturated resin, plaster, candles and gypsums crafts, toys, soap, statuary ,concrete product mol making,etc.
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Features of rtv silicone rubber for mold making

flowable liquid silicone and curing agent.

Cures at room temperature within 2-4 hours.

An exceptional fluidity and good operability, easy to demold.

Good tensile and tear strength, low shrinkage.

High duplication times.

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Advantages of rtv silicone rubber for mold making

A. Shore A from 15 to 40 hardness

B. Good fluidity and good operability and good for pouring method.

C. Excellent mechanical properties, in particular tear strength and tensile strength.

D. Excellent flexibility and it is easy to demould.

E. High temperature resistance, high duplication times and repeated use.

F. There are a range of catalysts/curing agent/hardener allows the liquid rtv silicone rubber  to fulfill requirements for various applications and various requirements on the operation time and curing time.

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rtv silicone rubber for mold making curing agent and silicone proportion and reaction(Under room-temperature-25C)
1.Added with 2 percent of curing agent, silicone can still flow within 1.2-1.6 hours, mold can be released in 7-8 hours.
2.Added with 3 percent of curing agent, silicone can still flow within 1-1.2 hours, mold can be released in 6-7 hours.
3.Added with 4 percent of curing agent, silicone can still flow within 40-50 minutes, mold can be released in 5-6 hours.

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Operation of rtv silicone rubber for mold making

1. deal with original moulds

2. brush on release agent

3. correct weigh accoring to mixng ratio

4. stir the two component evenly

5. vacuum-pumping

6. pouring

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TDS of rtv silicone rubber for mold making

Model:630#

Appearance:white/red

Viscosity(cs):15000-17000

Hardness(A):30

Tensile strength(kgf/cm)≥35-36

Elongation break(%):≥450

Retractility(%):≤0.3

Curing agent mixed rate(%):2-3

Operate time(min):30

Curing time(hours):2-4

Mixing proportion of curing agent:4%

Any questions of Silicone Rubber, please feel free to contact Miss Leah:

TEL: 086-755-892122382

FAX: 086-755-89948030

MOBILE: 086-189 3886 7561

Website: www(dot)szrl(dot)net

E-MAIL: hyji(at)szrl(dot)net

Skype: leahchou1214

QQ: 189 3886 7561