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Dongguan Mingcheng Electronic Technology Limited
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Various Applications of RTV Silicon for resin mould making :
A: Cultural relic duplication, architectural decoration, statues
B: Polyester Resin crafts
C: Lighting ornaments, soap, candles molding
D: Plaster, Gypsum, Cement, Concrete decorations
F: Model design, product exploitation, etc.
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 | |||||
RTV2028 | white | Liquid clear | 100:2 | 30000 cps | 30 | 4-6 | ||
Characteristics after curing 24 hours | ||||||||
Hardness Shore A | Tear strength (N/mm) | Tensile Strength(Mpa) | Elongation break (%) | Linear Shrinkage | ||||
28 | 30 | 4.5 | 511 | ≤0.3% | ||||
Silicone Mold-making Procedures:
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 Silicon for resin mould making
RTV Silicon 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 9 months 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.
Should you have any question, please feel free to contact Ms Julie.
Skype: julieszmc
MSN: julieszmc(at)hotmail(dot)com
MINGCHENG GROUP LIMITED