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Silicone Masterbatch

  • Apr 01, 2025

Silicone masterbatch, also known as masterbatch and masterbatch paste, is used for the coloring of various silicone products and is suitable for compression molding. It is an indispensable raw material for the coloring of silicone products.

Overview

Silicone masterbatch is a silicone masterbatch made of special silicone rubber, various color powders and various additives. It is used for the coloring of various silicone products and is suitable for compression molding.

Product features

Easy to operate, heat resistant, good dispersibility, strong coloring strength. Passed many EU standards.

Classification

According to the main performance, it is divided into organic masterbatch, organic fluorescent masterbatch and inorganic masterbatch. A solid masterbatch is also a colorant

1. Characteristics of organic masterbatch: complete color system, bright color, good transparency and high coloring strength.

2. Organic fluorescent masterbatch: The color is very bright and can glow under UV ultraviolet light, but its weather resistance and heat resistance are poor, and the tinting strength is low.

3. Inorganic masterbatch: High temperature resistance, good dispersibility, excellent weather resistance, strong hiding power, but low tinting strength.

Characteristics

1. Heat resistance: refers to the ability of the masterbatch to resist heat. The larger the number, the better the heat resistance. The pigment is dispersed in polyolefin to make one-third of the standard color, and stays for 5 minutes after molding in the injection molding machine.

2. Light resistance: refers to the ability of the masterbatch to resist light. The pigment is dispersed in a certain medium to make a sample. It is exposed to the specified light source at the same time as the "Light Fastness Blue Standard" sample card. After a certain period of exposure, the degree of discoloration is compared, expressed in grades, with grade 1 being the worst and grade 8 being the best.

3. Migration resistance: refers to the ability of the masterbatch to resist migration. Migration refers to the migration of the colorant from the inside of the product to the surface of the product or from one product through the interface to the product and the solvent. It is expressed in grades, with grade 1 being the worst and grade 5 being the best.

Material composition

Silicone gel, color powder, silicone oil, dispersant.

Physical properties

Appearance: Gel-like

Usage

1. Add the silicone masterbatch to the silicone in a certain proportion and mix evenly.

2. Vulcanization molding: Place the mold according to the company's appropriate process conditions, and the recommended vulcanization temperature is 165-190¡æ.

Scope of application of silicone rubber

Ordinary silicone rubber masterbatch

Coloring of other daily silicone rubber products such as food molds, mobile phone pendants and shells, cartoon toys, auto parts, etc.

Food grade silicone rubber masterbatch

Common silicone rubber tableware, medical molds

Environmentally friendly silicone rubber masterbatch

Cables

Packaging and storage

This product is transported and stored as general items. Store in a ventilated place away from light and heat, sealed at room temperature, with a shelf life of twelve months.

Precautions

1. During the use of masterbatch, be sure to keep the rubber mixing and molding environment clean and clean to avoid impurities inducing the dispersion of color points of silicone products.

2. The masterbatch and the mixed rubber should be sealed and kept clean to prevent static electricity from generating dust and excessive contact between the masterbatch and the air, which will cause the rubber to harden and increase the difficulty of the process.

3. When molding silicone products, you should understand the temperature resistance of the silicone masterbatch to prevent the product from changing color during molding and secondary vulcanization baking.

4. Try to use up the opened rubber within 12 hours to avoid hardening the rubber and making it difficult to mix.

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  • Mob: 008615950512730 (Whatsapp)
  • Email: Eric@wanplas.com
  • Address: Jiangning District, Nanjing, China

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