Description of liquid rtv-2 silicone for gypsum products molding
Tin cure rtv-2 liquid silicone rubber consists of two components, wherein component A is silicone rubber, and component B is curing agent. Firstly process and prepare the model mold or the product to be duplicated, take certain amount of the silicone rubber, add 2-3% curing agent, and mix evenly for use. One mold pair can be solidified and formed in 2-3 hours.
Application of liquid rtv-2 silicone for gypsum products molding
Liquid rtv-2 silicone for gypsum products molding is mainly applicable to gypsum products, plaster,resin, cements mold is good for casting Plasters, Cements and resin, toy craftworks, gifts and stationery, large statues, duplication of cultural relics mold making, etc.
Operation Instruction of liquid rtv-2 silicone for gypsum products molding
1. liquid rtv-2 silicone for gypsum products molding is applied to small products or products with fine patterns. The mold for the fine detailed and small products should be made of soft silicon to protect the products from easy breaking when demoulding.
2. If large product duplication or fabrication, the mold should be made of higher hardness silicone rubber so that the products made will not deform.
Specification of rtv-2 liquid silicone for gypsum products molding
Item No. |
RTV2030 |
RTV 2028 |
| Color |
white |
off-white |
| Curing agent |
CA30 |
CA30 |
| Mixing ratio |
100:2 |
100:2 |
| Mixed viscosity |
24000-25000 cps |
28000-30000 cps |
| Pot life |
30-40 Minutes |
30-40 mins |
| Curing time |
4-6 Hours |
4-6 Hours |
| Hardness |
28-30 Shore A |
27-28 Shore A |
| Tear Strength |
30 N/mm |
30 N/mm |
| Tensile Strength |
3.8 MPA |
4.5 Mpa |
| Relative density |
1.15 g/cm³ |
1.11-1.15g/cm3 |
| Shrinkage |
≤0.3% |
≤0.3% |
| Elongation at break |
480% |
511% |
Shortage of RTV-2 Liquid Silicone for Gypsum Products Mold Making
When the RTV-2 Silicone Rubber is stored at or below 30 °C(85 °F) in the original unopened containers, RTV2 Silicone Base and CA30 Curing agent have a usable life of
12 months from the date of production. After 12 months, please use a stirring mill to stir the Part A silicone for some minutes, then the silicone can be use again, no influence for other performance.
Package of RTV-2 Liquid Silicone for Gypsum Products Mold Making
Part A: 5kg, 20kg, 25kg, 200kg Part B:0.8kg,1kg
FAQ of RTV-2 Silicone Rubber for Mold Making
Why does the RTV liquid silicone rubber for molding have few mold making 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.
Company Information:
We are manufacturer, and specialized in manufacturing different hardness, different viscosity silicone rubber series, we are competitive in price with good quality.
Any futher questions,please feel free to contact Nicole.
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