Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Technologies
- Product Families
Features & Benefits
Applications & Uses
- Applications
- Cure Method
- Coating Type
- Suggested Applications
EBECRYL® 4766 can be combined with isocyanate functional urethane acrylate resins for the formulation of coatings cured by a dual-cureprocess (UV induced polymerization and NCO/OH reaction).
Suitable (1)isocyanate functional urethane acrylate resins include EBECRYL® 4141 ,(1)4510 (1) and 4765 .Coatings formulated with EBECRYL® 4766 are applied by spraying, curtain coating or roller coating (≤100g/m2) and cured after an adequate flash-offtime, if required.Dual-cure processes include: NCO/OH reaction followed by UV curing. The NCO/OH reaction canprovide a non-blocking coating suitable for thermo or vacuum forming processes.
UV curing of the formed coating increases its durability and chemical resistance.
UV curing to provide a hard coating surface, with subsequent NCO/OH reaction which provides through curing, particularly inpigmented systems and shadowed areas.
The reaction of the isocyanate groups can be accelerated with standard two-component polyurethane catalysts. Photo-initiators are required forUV curing, with typical photo-initiators being suitable.
The type and amount of catalysts and/or photo-initiators should be adjusted to the plant and process condition.
Pot-life of two component-systems should be tested in accordance with the planned application.
Properties
- Physical Properties
- Typical Properties
Value | Units | Test Method / Conditions | |
Acid Value | approx. 30 | mgKOH/g | — |
Density | 1.17 | g/cm³ | — |
Flash Point | min. 100 | °C | — |
Value | Units | Test Method / Conditions | |
Color | max. 400 | Pt-Co | — |
Hydroxyl Value | 4.8 - 6.1 | % | — |
Water Content | max. 0.10 | % | — |
Viscosity (23°C) | 2000-5000 | cP/mPa·s | — |
Safety & Health
- Precaution
- Avoid contact with eyes and skin. Wash thoroughly after handling. Keep container tightly closed. Use with adequate ventilation.
Packaging & Availability
- Regional Availability
Storage & Handling
- Storage and Handling
- Before using EBECRYL 4766, consult the Safety Data Sheet for additional information on safety and handling procedures, and recommended personal protective equipment. Ebecryl 4766 should be stored in a cool, dry location. Care should betaken not to expose the product to high temperature conditions, directsunlight, ignition sources, oxidizing agents, alkalis, acids or water.Prevent inadvertent contact with peroxides and other radical initiators and contact with copper, copper alloys, carbon steel, iron and rust. This might cause uncontrollable polymerization of the product with thegeneration of heat. Storage and handling should be in stainless steel, amber glass, amber polyethylene or baked phenolic lined containers.Procedures that remove or displace oxygen from the material should beavoided. Do not store this material under an oxygen free atmosphere. The product is sensitive to moisture. Skin formation may occur in openedcontainers. Dry air is recommended to displace material removed from the container.