MINGCHENG GROUP LIMITED
Customer First, Dedication, Innovation. MC Silicone Professional Mould Making & Casting Materials Supplier
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DESCRIPATION
Silicone rubber MCSIL-2015 is a two-component material, consisting of Part A silicone base and Part B MCSIL-CA30, cures at room temperature by a condensation reaction.
PRODUCT FEATURES
1. Good flow ability and long working time
2. No oily
3. High elongation
4. Easy de-mould from complex replica parts
5. Acid and alkali-resistance
6. Low linear shrinkage
Technical Data
| Item No. | MCSIL-2015 |
| Color | White |
| Curing Agent | CA-30 |
| Mixing ratio | 100:2 |
| Mixed Viscosity | 15000cps |
| Working time | 30mins |
| Curing time | 6 hours |
| Hardness | 15±2 shore A |
| Tear Strength | 25 N/mm |
| Tensile Strength | 3.8Mpa |
| Shrinkage | ≤0.3% |
| Elongation | 600% |
USING INSTRUCTION
1- Take 100g of part A and add 2g of part B and mix the silicone rubber and curing agent evenly.
2- vacuum pumping
Without exception, this step takes less than 10 minutes. Otherwise, it will cause , and no more further steps will be available
3- Pouring mold or block mold of silicone rubber
The pouring way is an easy way to make molds, it's slowly and evenly pour into the mixed silicon rubber into the square frame. After the cross linking reaction.
APPLICATIONS
MC RTV-2 mold making silicone rubber are suited for casting wax, small molds with complex patterns, it is perfect liquid rubber material to home hobby mold making, candle molds and soap mold making.
Benefits of MC Silicone
Ease of processing
High resin resistance increasing the number of cast parts
Low linear shrinkage for greater accuracy
Easy release of shapes, including large pieces and complex geometries
High compatibility with water-rich casting materials such as gypsum
Increased compatibility with high performance concrete
Dimensional stability due to very low shrinkage
High mechanical properties over a range of flexibility
Package
Part A base silicone: 5kg, 20kg/drum, 25kg/drum or 200kg/drum
Part B CA30 Curing Agent: 250g, 800g/bottle, 1kg/bottle
Certificates
Storage
When the silicone rubber is stored at or below 30 centi degree in the original unopened containers, Silicone Base and Curing agent have a usable life of 12 months from the date of production. After 12 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.
Procedures of mold making by RTV-2 Silicone Rubber
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.