MCPLA-L Series Two-component addition type silicone rubber Silicone Rubber is
two-part, platinum-catalyzed, liquid silicone system that cures
(RTV) to Shore A rubber. The polymerization can be accelerated by
heat. The silicone components are delivered as liquids,which once
mixed and cured into translucent, elastic and resistant material
with long library life.
Advantages of Platinum RTV2 Silicone RubberCustomizable ColorConvenient to operate with the RTV propertyEasy to mix due to the low viscosity (7000~9000Cps)High duplication with high tear and tensile strengthLong shelf life with low shrinkage(0.01%)Excellent chemical resistanceCan be accelerated for rapid cureApplications of Platinum RTV2 Silicone Rubber1.A range of materials can be cast into the cured silicone mold:polyurethane and other reactive resinsSmall pieces of cement,plaster,concrete products.Food like chocolate,fondantsWax,candle,soap;Low melt metal2.casting body parts,shoe insole,life casting.| Item No. | MCPLA-L15A/B |
| Color | Translucent/can be customized |
| Viscosity ( cps,approx.) | 6000~7000 |
| 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) | 15 |
| Tensile Strength(Mpa,after 24 h) | 3.8 |
| Elongation(%) | 550-600 |
| Tear Strength(N/mm) | 15- 17 |
| Linear Shrinkage (%) | ≤0. 1 |
20kg per drum, 200kg per drum
20kg/drum;480kg/pallet or 640kg/pallet.
Storage of Silicone Rubber
When the silicone rubber is stored at or below 25 degree Celsius 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, please use tool to stir the Part A silicone
for some minutes, then the silicone can be use again, no influence
for other performance.
1.Store the original packing tightly sealed and at a temperature
below 25 degree Celsius.
Use the product as soon as the packaging has been opened.
2.Close the lid tightly after taking out the proper amount of liquid
silicone rubber.
Installation Instructions
Instruction of Platinum RTV2 silicone rubber
1. Mixing the two components
According the mixing ratio 1:1 weigh 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 etc.
