DESCRIPATION
RTV-2 silicone rubber is generally named as two-part room
temperature vulcanized silicone rubber, which features an
exceptional fluidity and good operability. When mixed with 2-3%
curing agent, they can still be operated within 30-40 minutes, but
will be formed after 4-6 hours. With resistance to deformation,
high temperature, acid and alkali, and expansion.
FEATURES
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
MC Silicone RTV2 series are suited for reproduction of resin,
plaster molding, figures, art objects, decoration molding, GRC
products, gypsum products, resin products, PU molds, etc.
P Item NO. | Character 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 |
| MCSIL-H15 | white | Clear | 100:5 | 16000 | 90-120 | 24 |
| Character after curing 24 hours |
Hardness Shore A | Tear strength (N/mm) | Tensile Strength(Mpa) | Elongation break (%) | Linear Shrinkage |
| 13-15 | 28 | 4.2 | ≥610% | ≤0.3% |
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.
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 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.
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
