Product Description
MCPLA-L40 A/B Two-components addition type Liquid Silicone Moulding Rubber is a two-part, platinum-catalyzed, cured at room temperature. The polymerization can be accelerated by heat. The silicone components are delivered as liquids, which once mixed and cured transform into a translucent, elastic and resistant material.
Advantages of Low Viscosity Platinum Silicone for Molding
Convenient to operate because the RTV property
Easy to mix due to the low viscosity (7000~9000Cps)
High duplication because of high tear and tensile strength
Long shelf life with low shrinkage
Can be accelerated for rapid cure
Applications of Low Viscosity Platinum Silicone for Molding
1.A range of materials can be cast into the cured silicone mold:
polyurethane and other reactive resins
Small pieces of cement,plaster,concrete products.
Food like chocolate,fondants
Wax,candle,soap;
2.casting body parts,life casting , shoe insole.
Detailed Photos
Packaging & Shipping
20kg per drum, 200kg per drum
20kg/drum;480kg/pallet or 640kg/pallet.
Storage and shelf life
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.
FAQ
Q1: Why the curing time of platinum silicone varies in environment with different temperature ?
Platinum (addition) cured silicone rubber,Which with platinum catalyst and uses heat to transform from liquid to solid rubber. Therefore, platinum cured silicone rubber is sensitive to temperature, platinum systems are often cured quickly with heat, although they can also be formulated to cure at low temperatures and room temperature.
Q2:why the bottom and sides of platinum silicone molds are still gummy?
platinum silicone rubber requires accurate and careful mixing. The material must be mixed thoroughly for at least 3~5 minutes. make sure to scrape the container sides, bottom, and corners as you mix.
Q3: Why the platinum silicone rubber do not cure?
Platinum-cure silicone rubbers are critically sensitive to some materials and will not cure under any circumstances when exposed. like the materials below:
#Natural rubbers vulcanized with sulfur
#RTV elastomer is catalyzed with metal salts, e. G. Tin compounds
#Epoxy catalyzed with amines
#Certain organic solvents, such as Ketones, alcohols, ether etc.
Q4: Is platinum silicone food safe?
yes! It's safe to contact Food and skin, which is suitable for making food molds and making Prosthetics .
Installation Instructions
Instructions for Low Viscosity Platinum Silicone for Molding
1. Preparing
The surface of the original objects should be clean and free of loose material. If your products have thin flower patterns, and especially have porous substrates, please use a suitable mold release agent such as soap water, detergent, Vaseline or petroleum jelly.
2. Mixing
Please weigh Part A silicone base and part B CA30 Curing Agent with ratio of 100: 2 into a clean container. Stir Part A base silicone thoroughly before use, then Mix Part A and Part B evenly until the curing agent completely dispersed in the silicone base. Manual or mechanical mixture can be used, but do not last much time or allow the temperature to exceed 35° C (95° F). It's suitable to mix small quantities to ensure thorough mixture of silicone base and curing agent.
Note: It is strongly recommended that entrapped air be removed in a vacuum chamber, allowing the mixture to completely expand and then collapse. After a further 1 to 2 minutes under vacuum, the mixture should be inspected and can be used if free of air bubbles. A volume increase of 3-5 times will occur on vacuum de-airing the mixture. So a suitably large container should be chosen.
3. Pouring and curing
Pour the mixed Part A base silicone and CA-30 curing agent as soon as possible onto the original object, avoiding air entrapment. The catalyzed material will cure to a flexible rubber within 6 hours (or faster by different mixing ratio or room temperature), we advice you de-mold after 24 hours, it is will improve the replicate times of silicone mold.
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