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-6 series silicon
payment methodT/T, L/C, Westem Union
update timeTue, 05 Nov 2013 13:00:56 GMT
color:any transport:by sea
Certifications:RoHS.SGS ISO9001:2000 provide curing agent for free
HS 31900000
application mold making
appearance liquid
MOQ 200kg
catalyst 5% for free
sample free
shelf life 1 year
Min Order200 kilogram
the company of RTV-2 molding silicone rubber
Packaging Detail: | 1kg 5kg 25kg 200kg or wood case as per your requirement |
Delivery Detail: | within 3 days after payment confirmed in our bank |
1. non deformation
2. low shrinkage
3. high tear strength
4.favorable hardness...
Appilication of RTV 2 molding silicone rubber :
Hongye mold making RTV-2 silicon rubber is primarily intendedfor the reproduction of plate engrave,human replica,for the mold making of poly resin crafts, PU crafts, PU resin crafts ,gypsum crafts ,unsaturated resin crafts, lighting and candles crafts ,soap mold,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.
RTV 2 molding silicone rubber glue features description
Hongye mold making RTV-2 silicon rubber is white or red flowing liquid with general hardness of 22-50A°after curing. Hongye mold making RTV-2 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.
The date sheet of RTV-2 molding silicone rubber :
Model | 630# | 625# |
Appearance | white | white |
Mixing proportion of curing agent (%) | 3% | 3% |
Operating time (mins 25 0C ) | 30-45 | 30-45 |
Curing time(hours 25 0C) | 6-8 | 6-8 |
Hardness (A°) | 30±2 | 25±2 |
Density ( g/cm 3 ) | 1.08 | 1.08 |
Viscosity (mPas -25 0C) | 18000±2000 | 25000±2000 |
Tensile-strength(kgf /cm2 ) | ≥43 | ≥39 |
Tear-strength (kgf /cm ) | ≥29 | ≥25 |
Elongation-break(%) | ≥430 | ≥ 450 |
Application(most for resin, gypsum and cement product to make moulds) | Most suitable for medium and large sized product by brushing method | Most suitable for small and medium sized product by pouring method |
RTV-2 mold silicon rubber for various crafts
RTV 2 molding silicone rubber 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.
RTV-2 mold silicon rubber for various molds casting
(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.)
Frequently asked questions of RTV 2 molding silicone rubber
Why does the silicone rubber mold have few molding times?
The silicone rubber mold 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.
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 silicon 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 silicon rubber and the curing agent from former 4% to 1%-2%. In this way, the pre- crosslinking time of silicon rubber will slow down, so the air in the mold will be eliminated gradually to reduce the air bubbles.
Any more information on RTV 2 molding silicone rubber glue, please fell free to contact with Mr Allen
Tel: 0086-755-89212365
Fax: 0086-755-89948030
Mobile:0086-18938861889
RTV 2 molding silicone rubber
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