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Unilink® 4200
Unilink® 4200 is an aromatic diamine chain extender and curative designed to cross-link polyurethane (PU) elastomers.
Documents
- Manufacturer: Dorf Ketal
- Product Line: Tyzor® Organic Titanates and Zirconates
- Product: Unilink® Aromatic Diamine
- Industries: Adhesives | Agriculture | Building & Construction | Coatings | Elastomers | Metal Processing & Fabrication | Plastics
- Authorized Countries: Canada | United States
Fulfilled By ChemPoint
Fulfilled By ChemPoint
Manufacturer
Product Line
Product
Industries
Authorized Countries
Canada
United States
Overview
Unilink® 4200 is a relatively low reactivity chain extender that can be used in TDI and MDI formulations. This cross linker is great for improving the increasing the tear strength and load bearing of flexible PU foams and will improve the compressive strength of rigid (PU) foams. In addition, Unilink® 4200 allows coatings, sealants, and adhesives that it cures to adhere better and develop smoother surfaces. It has low moisture sensitivity, it is compatible with most polyols and polyurethane chemicals, and is easy to handle and store.
Specifications
Appearance: Clear, light to dark brown liquid
Hydroxyl number: 362
Flash Point, PMCC, °C, min: 161
Specific gravity @ 26.7°C: 0.98-0.99
Density, g/ml: 0.995
Water Content, ppm, max: 500
Molecular Weight: 310
Equivalent Weight, min: 153
Primary Chemistry:
Aromatic Diamine
Features & Benefits
- Low moisture sensitivity
- Compatible with most polyurethane chemicals
- Easy to handle
- Excellent storage stability in polyols
- Improves strength of PU foams
- Improved adhesion of PU coatings, sealants, adhesives
- Better flow and leveling
- Low application rate, 1-5 pph polyol
Problems Solved
Low cross-link density of polyurethane elastomers
Tearing and compressive failure of polyurethane foams
Poor load bearing strength of PU foams
Applications
Curative for polyurethane, Polyurethane foams, Coatings, Sealants, Adhesives
Related Applications
Adhesives
- Aerospace
- Architectural
- Automotive
- Corrugated Boxes
- Industrial
- Machinery & Appliances
- Packaging
- Sealants
- Tapes
Related End Markets
Elastomers
Metal Processing & Fabrication
Plastics
Related Functions
Adhesives
Agriculture
Coatings
Elastomers
Related Processes
Elastomers
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