10:1 Mix Ratio RTV-2 Platinum Cure Molding Silicone Rubber For Polyurethane Tooling

Moldmaking Platinum Cure Silicone Rubber For The Best Reproduction Molds Of Rapid Prototyped Part

Product description

Platinum cure silicone rubber also known as addition cureRTV silicone rubber. In a 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, creating an ethyl bridge between the two.The reaction has no byproducts. Such silicone rubbers cure quickly, though the rate of or even ability to cure is easily inhibited in the presence of elemental tin, sulfur, and many amine compounds.

Features

High Transparency

High tear and tensile strength

Long shelf life with low shrinkage

Fast mixing (10:1)

Easy processing due to the low viscosity

Applications

Label manufacturing, Molding applications requiring low shrinkage e.g. toys, jewelry, automotive, rapid prototyping etc.

Technical Properties

Processing and Instructions

1. Mixing the two components

According the mixing ration 10:1 weighting A and B, the two components may be thoroughly mixed either by hand or using a low-speed electric to minimize the degassing

of bubbles and to avoid any temperature increase. Note: It is also possible to use a special mixing and dispensing machine for the silicone components, further information is available upon request.

2. Moulding

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 3-4 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. Polymerisation

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 silicone compound catalyzed with metal salts, e.g. Tin compounds

 PVC stabilized with tin salts and additives

 Epoxy catalyzed with amines

 Certain organic solvents, e.g. 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.

Packaging

Part A: 20kg per drum, Part B: 1kg per bottle

Special containers are available are on request.

Storage and shelf life

MC Silicone MCPLA -H Series should 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 guild lines:

Store the original packing tightly sealed and at a temperature below 30 degree Celsius.

Use the product as soon as the packaging has been opened.

Mingcheng Group Limited was established in 2010 based in Dongguan,China, with brand MC Silicone for overseas market, dedicated to manufacturing and R&D of mold making and casting materials.

Our professional approach to all our work, together with creative ideas and strong technical skills, enable us to produce high quality, cost effective materials. We pride ourselves on the different types of mould making materials we offer.

Why Choose Us?

Our Advantages
More than 20 years experience in moldmaking & casting industry
10 years exporting experience

Benefits of MC Silicone
1- A Technology Team: R&D Support
2- A Factory: customize for you in every possible aspect
3- A Sales Team: assist you develop more markets
4- Fast Delivery time about 3-5 working days per order
5- Professional Sales Service, 12-24 hours response
6- Various Payment Method

If you're looking for a good silicone supplier, you've come to the right place. Our unique vision and mission drives us bring the best products and service to each of our clients. We gonna be your guide in silicone industry, we are your partner. Welcome to Join us.