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Chlorinated Rubber (CR) - High Hardness Thermoplastic Resin from China Suppliers | Quality Factory Products
Product Introduction
Chlorinated Rubber (CR) is a high hardness, powdered thermoplastic resin. And it is a derived product modified from the natural rubber through chlorination. It has excellent properties of weather resistance, adhesion, chemical stability, salt water resistance, UV protection, etc.
Weather & UV Resistance
Excellent Adhesion
Chemical Stability
High Hardness
Chlorinated Rubber can be stably dissolved in toluene, xylene and other organic solvents, and acrylic acid, alkyd and many other resins, forming colorless or yellow transparent liquid. When this solution is applied to metal, concrete, paper and other surfaces, the solvent evaporates at room temperature, leaving behind a transparent, hard, shiny, glassy film. This film prevents the penetration of water vapor and oxygen, meanwhile is highly stable to various chemicals, such as acids and bases. It protects the substrate against corrosion and can be used as a topcoat for decoration. In addition, this product has excellent fire-resistance due to its high chlorine content.
In coatings to remarkably improve the coating properties such as weatherability and water resistance, insulation, inflammability, anti-acidity, anti-alkali, adhesion as well as impact strength. The chlorinated rubber coatings is widely applied to surface protection of materials for severe situation, such as shipping, offshore platforms, bridges, docks, containers, motor vehicle chassis, road signs, chemical equipment, etc. Additionally, high viscosity chlorinated rubber is applied to high-strength adhesives production, or added into other rubber products to improve its quality, while the low-viscosity product is applied to high-grade ink making.
Technical Specifications
| Item | CR5S | CR10W | CR20W | CR90W | CR10R | CR20R | CR40R | CR90R | CR130R | CR170R |
|---|---|---|---|---|---|---|---|---|---|---|
| Appearance | White/Yellowish | White Powder | White Powder | White Powder | Yellowish | Yellowish | Yellowish | Yellowish | Yellowish | Yellowish |
| Chlorine content % | 67±1 | 67±1 | 67±1 | 67±1 | 65±1 | 65±1 | 65±1 | 65±1 | 65±1 | 65±1 |
| Viscosity (25℃, 20% Xylene solution) mPa.s | 4-8 | 8-15 | 16-25 | 80-100 | *** | *** | *** | *** | *** | *** |
| Viscosity (23℃, 18.5% Xylene solution) mPa.s | *** | *** | *** | *** | 8-15 | 16-25 | 35-45 | 80-100 | 120-140 | 155-185 |
| Application | coatings/Inks | coatings/Inks | coatings/Inks | coatings/Inks/Adhesive | coatings/Inks | coatings/Inks | coatings/Inks | coatings/Inks/Adhesive | Adhesives | Adhesives |
| Volatility / % | ≤0.5 | |||||||||
| Ash / % | ≤0.4 | |||||||||
| Moisture / % | ≤0.1 | |||||||||
| Thermostability / ℃ | Stable under 130℃ | |||||||||
Product Application
Chlorinated rubber (CR) can be widely used in paints, coatings, printing inks and adhesives, which is a good cost-effective functional resin, has a broad prospect.
Packaging and Storage
Storage & Packaging Details
• Normally Packed in Plastic bags lined of PP woven bags, 20 kg each.
• It should be stored at room temperature, dry & well ventilated place; Be on guard against moisture.
• This product belongs to non-dangerous goods and has stable chemical properties.
Frequently Asked Questions
What is Chlorinated Rubber (CR)?
Chlorinated Rubber (CR) is a high hardness, powdered thermoplastic resin modified from natural rubber through chlorination. It features excellent weatherability, strong adhesion, chemical stability, salt water resistance, and UV protection.
What are the primary applications of Chlorinated Rubber?
It is widely used in coatings and paints for severe environments (shipping, offshore platforms, bridges, road signs, and chemical equipment). High-viscosity grades are used in adhesives, while low-viscosity grades are applied in high-grade inks.
How does Chlorinated Rubber protect surfaces against corrosion?
When dissolved in organic solvents and applied to concrete, metal, or paper, it leaves a transparent, hard, glossy, glassy film upon solvent evaporation. This film blocks oxygen and water vapor penetration and resists chemical attacks from acids and bases.
What are the packaging and storage requirements for Chlorinated Rubber?
Chlorinated Rubber is typically packed in plastic bags lined with PP woven bags (20 kg each). It must be stored in a dry, well-ventilated area at room temperature and protected against moisture.
Is Chlorinated Rubber classified as a hazardous material?
No, Chlorinated Rubber belongs to non-dangerous goods. It exhibits stable chemical properties under normal storage and handling conditions.