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RTV-2 Silicone Rubber for Molding making Detailed Description
1. RTV-2 Silicone Rubber can used for poly resin crafts, PU crafts, PU resin crafts, gypsum crafts, unsaturated resin crafts, lighting and candles crafts, plastic toy, stationery gifts crafts industry,
2. RTV-2 Silicone Rubber is applicable for large statue Buddha, relievo furniture, furniture decorative materials, statues Buddha, artifacts copied, building decoration materials, large-scale cement mold,
3. RTV-2 Silicone Rubber is intend for artificial fossils Factory, Europe component factory, simulation landscapes, animals and plants sculpture, sandstone crafts and so on.
RTV-2 Silicone Rubber for Moulding making features
1. Resistance to deformation,
2. High-temperature,
3. Acid-alkali and expansion as well as high reproduction times,
4. Good tensile strength,
5. Tear strength and elongation.
RTV-2 Silicone Rubber for Molding making operation tips
1. Weigh theliquid silicone rubber and curing agent exatly.
2. Stir theliquid silcone rubber and curing agent evenly.
3. We shouldchoose the right hardness to making diffirent size of product mold.
Shelf life for RTV-2 silicon rubber for mold making:
10~12months, when stored in a dry & cool place under the room temperature 25.
Frequently asked questions of RTV-2 silicone rubber for mold making
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.
Datasheet of silicone rubber to make mold:
| Model | 635# | 630# | 625# | 620# |
| Appearance | white | white | white | white |
| Mixing proportion of curing agent (%) | 5% | 5% | 5% | 5% |
| Operating time (mins 25 0C ) | 40~70 | 60~90 | 40~70 | 30~50 |
| Curing time(hours 25 0C) | 4~7 | 5~7 | 4~7 | 3~5 |
| Hardness (A°) | 35±2 | 30±2 | 25±2 | 20±2 |
| Viscosity (Mpas -25 0C) | 30000~38000 | 27000~32000 | 17000~19000 | 12000~14000 |
| Tensile-strength(Mpa) | ≥4.50 | ≥4.2 | ≥3.2 | ≥2.8 |
| Tear-strength (KN/m) | ≥30 | ≥30 | ≥27 | ≥32 |
| Elongation-break(%) | ≥420 | ≥440 | ≥440 | ≥420 |
| Linear Shrinkage (%) | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.3 |
Free samples, hotline call herry:+86 18938867549
Email Address: 2355542567(alt)qq(dot)com
Tel: +86 -0755-89212380
FAX: +86-0755-89948030
Website:
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E-Catalogue: /Silicone-Rubber/E-Catalogue2013.swf
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