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-series
payment methodT/T, L/C, Westem Union
update timeTue, 05 Nov 2013 11:29:50 GMT
color white(different colors are available if requested)
curing agent 5%for free charged
Name silicone rubber for stone
Purity 100%
Demould Time 2-4h
Application For Mold Making
Apprearance White Liquid silicone rubber
Hs code 3910 0000
Transporation By Sea or by air
Min Order200 kilogram
Mould Silicone Rubber For the duplication & mold making of glass crafts/ candle/ culture relics duplications
The proportions and reactions of the curing agent and the silicon are listed as follows:
1. Adding curing agent 1%, the molding silicone can still be operated within 2.5 hours and can be demoulded after 6-8 hours.
2. Adding curing agent 2%, the molding silicone can still be operated within 50 minutes to 1 hour and can be demoulded after 2-3 hours.
3. Adding curing agent 3%, the molding silicone can still be operated within 28 - 30 minutes and can be demoulded after 1.5-2 hours.
4. Adding curing agent 4%, the molding silicone can still be operated within 10 - 15 minutes and can be demoulded after 1 -1.5 hours.
Operation Instruction for RTV-2 Molding Silicone Rubber:
The product is white or red flowing liquid with general hardness of 26—30A°after curing . If the customer wants to make large products and large size molds, the mold should be made of silicone 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 demould, more curing agent is needed; contrarily, if molds requiring slower drying and demould, less curing agent is needed.
(Note: our company does not recommend you to add silicone oil. If a special soft silicon mold or fine detailed and complex patterns products are required, 5%-10% silicone oil can be added to soften the mold for easy demould.)
1. Why could the silicone mold be reused only for a few times?
It can be due to the following reasons:
a. Adding too much silicone oil in to silicon rubber. Silicon oil is an additive which destroies the molecular weight of silicone rubber and reduce the tension and tear strength.
b. Using the silicon rubber with a high hardness to make molds for small sized products with delicate and intricate designs and the silicon rubber with a low hardness to makes molds for large sized products with simple designs.
(Notes: we should choose the silicon rubber specifically according to the requirements of our products to avoid this problem.)
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