EBECRYL® 8701

EBECRYL® 8701 is characterized by:

• Light color
• Low odor

UV/EB cured products containing EBECRYL® 8701 are characterized by the following performance properties:

• Excellent exterior durability
• Excellent abrasion resistance
• Good surface hardness
• Non yellowing
• Stain resistant
• Good adhesion

Toughness The actual properties of UV/EB cured products also depend on the selection of other formulation components, such as reactive diluents, additives and photoinitiators.

Formulated UV/EB curable products containingEBECRYL® 8701 may be applied via direct or reverse roll, offset gravure, metering rod, slot die, knife over roll, air knife, curtain, immersion and spin coating methods, as well as screen printing.
EBECRYL® 8701 is recommended for use in:

• Plastic coatings requiring good exterior durability, chemical resistance and scratch resistance
• Automotive OEM or Re-finish
• Coatings for wood
• Metal coatings
• Post-formable coatings for metal tube and conduit
• Optical coatings
• Non-yellowing topcoats for wood
• Pigmented coatings for wood
• Screen inks
• Exterior durable coatings

Graph I shows the viscosity reduction of EBECRYL® 8701 with 1,6-hexanediol diacrylate (HDDA), isobornyl acrylate (IBOA) of Allnex, neopentyl glycol propoxylate diacrylate (NPG(PO)2DA) of Allnex trimethylolpropane triacrylate (TMPTA) of Allnex and tripropylene glycol diacrylate (TPGDA) of Allnex. Although viscosity reduction can be achieved with non-reactive solvents, reactive diluents are preferred because they are essentially 100 percent converted during UV/EB exposure to form a part of the coating or ink, thus reducing solvent emissions. The specific reactive diluents used will influence performance properties such as hardness and flexibility.

Graph II illustrates the change in viscosity of EBECRYL® 8701 with increasing temperature.

Graph I: Viscosity Reduction with Reactive Diluents

Graph II: Viscosity vs. Temperature

• Avoid contact with eyes and skin. Direct contact with this material may cause moderate eye and skin irritation.
• Contact with skin may cause a cross-allergic reaction in persons already sensitized to acrylate materials.
• Wash thoroughly after handling. Keep container tightly closed. Use with adequate ventilation.

• The recommended storage temperature range for EBECRYL® 8701 is 4°C to 40°C (39°F to 104°F). Care should be taken not to expose the product to high temperature conditions, direct sunlight, ignition sources, oxidizing agents, alkalis or acids.
• This might cause uncontrollable polymerization of the product with the generation 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 be avoided.
• Do not store this material under an oxygen free atmosphere. Dry air is recommended to displace material removed from the container. At typical ambient temperatures, EBECRYL® 8701 will crystallize and exhibit a waxy solid form. This crystallization can be removed by heating containers of EBECRYL® 8701 to a uniform temperature of 70°C.
• Ovens or hotboxes are recommended methods of heating. Heating tapes should not be used. In typical formulations, EBECRYL® 8701 does not exhibit signs of crystallization.