200 - 1,000 kilogram
group nameRTV-2 silicone rubber for molds making
Min Order200 kilogram
brand nameHong Ye silicone rubber
modelHY625
payment methodL/C, T/T, Western Union
update timeMon, 17 Mar 2014 08:55:47 GMT
sample free
appearance liquid silicone
application molding silicone rubber
brand hongyejie
hs code 39100000
color any
ship by sea
port shenzhen
supply ability 8 ton per day
payment L/C T/T
Size30cm x 40cm x 50cm
Weight25kg / kilogram
Min Order200 kilogram
Appilication of RTV silicone rubber for mold making:
RTV silicone rubber for mold making is primarily intended for the mold making of poly resin crafts, PU crafts, PU resin crafts ,gypsum crafts ,unsaturated resin crafts, lighting and candles crafts ,plastic toy , stationery gifts crafts industry, a large statue Buddha, furniture, furniture decorative materials, statues Buddha, artifacts copied, building decoration materials, large-scale cement mold, artificial fossils Factory, Europe component factory, simulation landscapes, animals and plants sculpture, sandstone crafts and so on.
Description of RTV silicone rubber for mold making:
RTV silicone rubber for mold making is white or red flowing liquid with general hardness of 22-50A°after curing. Hongye Condensation silicon 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.
Operation of RTV silicone rubber for mold making :
If the customer wants to make large products and large size molds, the mold should be made of silicon rubber with high hardness. On the contrary, if the mold with fine and precision patterns, it should be made of silicon with low hardness. The amount of the curing agent depends on the actual requirements of the customer. If molds requiring fast drying and demold, more curing agent is needed; contrarily, if molds requiring slower drying and demold, less curing agent is needed.
(Note: our company does not recommend you to add silicone oil. If a special soft silicone mold or fine detailed and complex patterns products are required, 5%-10% silicone oil can be added to soften the mold for easy demold.)
Standand Datasheet of RTV silicone rubber for mold making:
Model | 625# |
Color | Blue |
Mixing proportion of catalyst(%) | 100:4 |
Hardness (A°) | 25 |
Density ( g/cm 3 ) | 1.15 |
Viscosity (25 C°,mPa.s) | 22000 |
Tensile strength (psi) | 620 |
Tear-strength (pli ) | 120 |
Elongation-break(%) | 400 |
Working time (minutes) | 90~120 |
Curing Time (hours) | 24 |
shrinkage (%) | 0.3 |
Frequently Asked Questions of RTV silicone rubber for mold making :
Why does the RTV silicone rubber for mold making have few molding times?
RTV silicone rubber for mold making has few molding times is due to follwoing reasons: adding too much silicone oil which will destroy the molecular of silicone rubber; making the mold for small and fine detailed products with higher hardness silicone rubber which is easy to break; making the mold for large products with soft silicone rubber which will reduce the tensile and tear strength of the mold, and the mold will have deformation. Thus, we should take the proper silicone rubber to make the mold for suitable products.
Certification of RTV silicone rubber for mold making:
Package of RTV silicone rubber for mold making:
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