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
model630# silicone rubber
payment methodT/T, L/C, Westem Union
update timeTue, 05 Nov 2013 13:05:15 GMT
color white
MOQ 200kg
Payment T/T L/C Western union
Package 25kg/drum 200kg/drum
Features Liquid
Port shenzhen
HS Code 39100000
Certifications RoHS, MSDS, SGS, ISO9001:2000
Min Order200 kilogram
1. Liquid silicone for gypsum cornice applications:
Liquid Silicone for gypsum column mold making is primarily intended for poly resin crafts, PU crafts, PU resin crafts ,gypsum crafts , gypsum column ,unsaturated resin crafts, lighting and candles crafts ,plastic toy , stationery gifts crafts industry, a large statue Buddha, relievo 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.
2. Liquid silicone for gypsum cornice operations:
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 demould.)
As a professional manufacturer of molding silicone rubber, we can provide you the best quality silicone rubber with competitive price and free demold technology.
3. Liquid silicone for gypsum column mold making datasheet:
Model | HongYe RTV 630# |
Appearance | White |
Mixing Ratio (%) | 20:1 |
Operating time (mins 25 0C ) | 40~50 |
Curing time(hours 25 0C) | 3~6 |
Hardness (A°) | 28±2 |
Viscosity (Mpas -25 0C) | 22000±1000 |
Tensile-strength(kgf /cm² ) | 42±2 |
Tear-strength (kgf /cm ) | 26±2 |
Elongation-break(%) | ≥ 450 |
Linear shrinkage(%) | 0.01~0.03 |
4. FAQs in the use of the operations:
What should we do when the air bubbles appeared in the process of mold making ?
To handle this situation depends on different cases. Under the condition of an available vacuum pumping machine, mix the silicone rubber and curing agent evenly and then take it to vacuum chamber to deair. If without a vacuum pumping machine, reduce the amount of the curing agent properly. For example, change the mixing ratio of the silicone rubber and the curing agent from former 4% to 1%-2%. In this way, the pre-crosslinking time of silicone rubber will slow down, so, the air in the mold will be eliminated gradually to reduce the air bubbles.
Any question about silicon rubber, Pls feel free to contact Christy
TEL: 086-755-89948006
FAX: 086-755-89948030
Mobile: 86-189 3886 7547
Skype: christyxu911
Email: hyxj(at)szrl(dot)net
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