200 - 40,000 kilogram
40,001 - 999,999 kilogram
group nameRTV-2 silicone rubber for molds making
Min Order200 kilogram
brand nameHong Ye silicone rubber
modelHY-638 silicone
payment methodT/T, L/C, Westem Union
update timeSat, 09 Nov 2013 12:49:05 GMT
Sample free
Color white/red/yellow/green
Certifications RoHS.MSDS.SGS
Hardness 15-40
Mix Ratio 100;3
Operation Time 30-50 min
Elongation 420
Dynamic Viscosity 27000mPa.s
Tear-strength 26kN/m
Tensile-strength 4.0MPa
Min Order200 kilogram
RTV Silicone Rubber for mold making
1. RTV Silicone Rubber for mold making usages
RTV Silicone Rubber for mold making is primarily intended for mold making of gypsum, concrete, poly resin ,PU resin, unsaturated resin crafts, lighting and candles crafts , plastic toys , stationery gifts crafts industry, large statue, Buddha, relievo furniture, furniture decorative materials, statues Buddha, artifacts copied, building decoration materials, large-scale cement mold, artificial fossils Factory, European buildings, simulation landscapes, animals and plants sculpture, sandstone crafts and so on.
2. RTV Silicone Rubber for mold making main features:
RTV Silicone Rubber for mold making is white or red flowing liquid with general hardness of 22-50 shore A ,after curing. Molding silicon rubber is a kind elastic silicon rubber mold which features with resistance to deformation, high-temperature, acid-alkali and expansion as well as high reproduction times, good tensile strength ,tear strength and elongation.
3. RTV Silicone Rubber for mold making discription
RTV Silicone Rubberfor mold making is a kind of flowable liquid silicone, the quality has nothing to do with the color. It consists of two components. Part A is a flowable liquid silicone rubber, part B is the curing agent. Firstly, after your previous work of dealing with the original model, take some liquid silicone rubber , add 2%-3% curing agent of the amount of silicon, and mix them evenly. Then after vacuum-pumping the mixture, you can pour it into the mold frame. The silicone mold will cured in 2-4 hours.
And more curing agent is needed; contrarily, if molds requiring slower drying and demould, less curing agent is needed.
4.Datasheet of RTV Silicone Rubber for mold making:
Model | Color | Mixing ratio (%) | Operation Time (mins) | Demould | Hardness ( A0 ) | Tensile-strength (MPa) | Tear-strength (kN/m) | Dynamic Viscosity | Shrinkage | Elongation |
time | (mPa.s) | rate (%) | (%) | |||||||
( hrs) | ||||||||||
615# | white | 100:3 | 30-50 | 4-5 | 15±2 | 2.5 | 16±2 | 13000±2000 | ≤0.3 | 380 |
620# | white | 100:3 | 30-50 | 4-5 | 20±2 | 2.8 | 19±2 | 17000±2000 | ≤0.3 | 530 |
625# | white/translucent | 100:3 | 30-40 | 3-4 | 25±2 | 3.4 | 24±2 | 25000±2000 | ≤0.3 | 410 |
630# | white/translucent | 100:3 | 30-40 | 3-4 | 30±2 | 4.0 | 26±2 | 27000±2000 | ≤0.3 | 420 |
638# | white/translucent | 100:3 | 30-40 | 3-4 | 38±2 | 4.0 | 25±2 | 25000±2000 | ≤0.3 | 450 |
640# | white/translucent | 100:3 | 30-50 | 4-5 | 40±2 | 3.5 | 21±2 | 15000±2000 | ≤0.3 | 180 |
5. RTV Silicone Rubber for mold making frequently asked question:
Why does the silicone mould appear to be dry outside but wet inside?
Because molding silicone rubber is a kind of condensation silicone rubber, which get solidified after absorbing moisture from the air. In order to provide a significant shelf-life for the silicon rubber, we will dry out the water in the silicon rubber.
Solution: Add 0.05% water into the silicon rubber and Stir over a low speed briefly when you use it.
6. Certification of RTV Silicone Rubber for mold making :
7. Our factory :
Any questions , please feel free to contact Mr Lucas:
TEL: 086-755-89212369
MOBILE:086-18898736056
Website: www(dot)szrl(dot)net
E-MAIL: hysj(at)szrl(dot)net
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