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Dongguan Mingcheng Electronic Technology Limited
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Application of RTV-2 Silicone For Mould Making
A: Cultural relic duplication, architectural decoration, statues
B: Resin crafts
C: Lighting ornaments, candles
D: Plaster, Gypsum,Cement,Concrete decorations
F: Model design, product exploitation, etc.
Physical properties of RTV-2 Silicone For Mould Making
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 | |||||
RTV920 | white | Liquid clear | 100:5 | 13200 cps | 60 | 8-12 | ||
RTV930 | white | Liquid clear | 100:5 | 16700 cps | 60 | 8-12 | ||
| Characteristics after curing 24 hours | |||||||
Hardness Shore A | Tear strength (N/mm) | Tensile Strength(Mpa) | Elongation break (%) | Linear Shrinkage | ||||
RTV920 | 18-20 | 30 | 4 | 530 | ≤0.3% | |||
RTV930 | 28-30 | 28 | 4 | 510 | ≤0.3% | |||
Procedures of RTV-2 Silicone For Mould Making :
1. Clean and prepare specimen (apply consolidant, sealant, or release agent if necessary).
2. Build retaining wall around specimen.
3. Stir silicone base to loosen any settled material.
4. Decant desired amount of silicone into mixing container.
5. Mix in appropriate amount of catalyst.
6. Apply to specimen.
7. If reinforced mold is desired, gently press in gauze after pouring fist layer.
8. When cured, gently remove mold from specimen.
9. If needed, create rigid backing or jacket over mold with plastic,
urethane foam, or plaster.
10. Remove backing material and mold. Store mold inside rigid backing.
Storage and Precautions of RTV-2 Silicone Rubber:
RTV-2 Silicone Rubber is an environmentally-friendly liquid silicone product, is not easy to burn and can be stored and transported as non-hazardous goods. The shelf life of the product is about one year from the date of production. Inspection is required when exceeding the time limited. It can continue to be used in case of neither thickening nor deterioration.
Need the technical datasheet for reference,please feel free to contact Ms Julie.
MSN : julieszmc (at) hotmail (dot) com
Skype: julieszmc
MINGCHENG GROUP LIMITED