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Dongguan Mingcheng Electronic Technology Limited
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MC Silicone RTV-2 Mold Making Rubber
Condensation cure system
Description of Flexible Silicone Mould for Precast Concrete Elements
RTV-2 Silicone is a two-component material, and the silicone rubber includes Part A base silicone and Part B CA30 curing agent. The Part A base silicone and Part B curing agent can cure at room temperature by a condensation reaction. These silicone materials can be cast into the cured silicone mold: plaster, polyurethane, PU, GRC, cement, resin, polyester, wax etc...
Features of Flexible Silicone Mould for Precast Concrete Elements
1. Good flow ability and long working time
2. Medium hardness
3. High tear and tensile strength
4. Easy de-mould from complex replica parts
5. Acid and alkali-resistance
6. Low linear shrinkage
Applications of Flexible Silicone Mould for Precast Concrete Elements
RTV-2 Silicone are suited for reproduction of cement molding, concrete stones, artificial stones, plaster molding, figures, art objects, decoration molding, GRC products, gypsum products, resin products, PU molds. Etc.
Physical properties of rtv-2 silicone good for pouring
P Item NO. | Characteristics before curing | Curing | ||||||
Part A | Part B | Part A+ Part B | Pot life at 250C mins | De-molding Time at 250C hours | ||||
Appearance | Appearance | Ratio | Viscosity cps | |||||
RTV2015 | white | Liquid clear | 100:2 | 25000-26000 | 30-40 | 4-6 | ||
| Characteristics after curing 24 hours | |||||||
Hardness Shore A | Tear strength (N/mm) | Tensile Strength(Mpa) | Elongation break (%) | Linear Shrinkage | ||||
RTV2015 | 13-15 | 25 | 3.8 | 600 | ≤0.3% | |||
Storage of RTV-2 silicone rubber for making molds
When the silicone rubber is stored at or below 30 centi degree in the original unopened containers, RTV2 Silicone Base and CA30 Curing agent have a usable life of 10 months from the date of production. After 10 months stockpiles use the Stir to mix the Part A silicone for some minutes, then the silicone can be use again, no influence for other performance.
Package of RTV 2 mold making silicone rubber
Part A base silicone: 20kg/drum, 25kg/drum or 200kg/drum
Part B CA30 Curing Agent: 800g/bottle, 1kg/bottle and 10kg/bottle
Professional factory:
We are manufacturer, and specialized in manufacturing different hardness, different viscosity silicone rubber series, we are competitive in price with good quality.
Should you have any question, please feel free to contact Ms Julie.
Skype: julieszmc
MSN: julieszmc(at)hotmail(dot)com
MINGCHENG GROUP LIMITED