Mix Ratio 1:1 platinum silicone rubber liquid for molding
DESCRIPTION
platinum-based silicone cure system, also called an addition system (because the key reaction-building polymer is an addition reaction), a hydride- and a vinyl-functional siloxane polymer react in the presence of a platinum complex catalyst,.The polymerization can be accelerated by heat (max. 150 C). The silicone components are delivered as liquids, which once mixed and cured transform into a elastic and resistant material. Polymerization occurs without formation of heat.
ADVANTAGES
1. Easy Curing: at room temperature (23C).
2. High tear and tensile strength
3. Long shelf life with low shrinkage
4. Fast mixing (1:1) and easy processing due to the low viscosity
5.food safe, non-toxic
APPLICATIONS
Molding applications requiring low shrinkage. Food grade molds for cake, chocolate, candy, fondant, and other resin crafts, plaster, cement art decorations, molds for soap, candle,etc.
INSTRUCTIONS
1. Mixing the two components
According the mixing ratio 1: 1 weighting part A and B, the two components may be thoroughly mixed either by hand or using a low speed electric to minimize the entrance of air and to avoid any temperature increase.
Note: It is also possible to use a special mixing and dispensing machine for the two silicone components, further information is available upon request.
2. Molding
The mixture should be degassed preferably at 30 to 50 mbar to eliminate any entrapped air. If a dispensing machine is used, the two components are degassed separately prior to mixing. The silicone mixture expands to 3 to 4 times of its initial volume and bubbles rise to the surface. The bubbles progressively disappear and the mixture returns to its initial volume after 5 to 10 minutes. Wait a few minutes to complete the degassing and then flash the vacuum. The silicone is ready for pouring, either by gravity or under low pressure.
Note: Flashing the vacuum once or twice accelerates the degassing. It is recommended to use a container with a high diameter/height ratio(3 to 4 times of the initial volume)
3. Polymerization
The curing may be slowed down at lower temperature or accelerated by applying heat.
Note: In general contact with certain materials can inhibit the cross linking of RTV.
Natural rubbers vulcanized with sulfur
RTV elastomeric is catalyzed with metal salts, e. G. Tin compounds
PVC stabilized with tin salts and additives
Epoxy catalyzed with amines
Certain organic solvents, such as Ketones, alcohols, ether etc.
In case of doubt, it is recommended to test the substrate by applying a small quantity of the mixed silicone on a restricted area.
STORAGE
RTV2 Silicone rubber must be used within
12 months from the manufacturing date. Beyond this date, MC silicone no longer guarantees the products confirms with the sales specification. In order to preserve best properties it is recommended to follow strictly the following guidelines:
Store the original packing tightly sealed and at a temperature below 30 C
Use the product as soon as the packaging has been opened.
Need more information, please feel free to contact Nicole.
| Item No. |
MCPLA-L10A/B |
| Color |
Translucent/can be customized |
| Viscosity ( cps,approx.) |
7000-9000 |
| Mix ratio (A:B) |
1:1 |
| Working time(at 25ºC ,minutes) |
30-40 (can be adjusted) |
| Curing time(at 25ºC,hrs,approx.) |
4-6 (can be adjusted) |
| Hardness Shore A(after 24 h) |
10 |
| Tensile Strength(Mpa,after 24 h) |
3.6~3.8 |
| Elongation(%) |
540~580 |
| Tear Strength(N/mm) |
15- 17 |
| Linear Shrinkage (%) |
≤0. 1 |
Package:
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