EBECRYL® 8702

EBECRYL® 8702 is an aliphatic urethane hexaacrylate designed to offer various performance properties, providing flexibility to formulators to meet specific requirements. When cured by ultraviolet light (UV) or electron beam (EB), films made using EBECRYL® 8702 exhibit a blend of hardness, abrasion resistance, impact resistance, and good exterior durability. Here's a breakdown of its features, specifications, and precautions as outlined in the technical datasheet:

Performance Highlights:

• Light color and low odor.
• Fast cure response and good pigment wetting.
• UV/EB cured products display good toughness, excellent abrasion and stain resistance, impact resistance, non-yellowing, and good exterior durability.

Suggested Applications:

• Automotive OEM or Refinish coatings.
• Coatings for wood and plastics.
• Screen inks, light-stable coatings, and metal coatings.

Specifications:

• Appearance: Clear liquid.
• Color, Gardner: Maximum 1.0.
• NCO, % max: 0.20.
• Viscosity at 60°C: Ranging from 4800 to 6800 mPa.s.

Typical Physical Properties:

• Density at 25°C: 1.13 g/cm³.
• Functionality, theoretical: 6.
• Oligomer, % by weight: 100.

Typical Cured Properties:

• Tensile strength: 4700 psi (32 MPa).
• Elongation at break: 10%.
• Young’s modulus: 180000 psi (1241 MPa).
• Glass transition temperature: 28°C.

Precautions:

• Before using EBECRYL® 8702, refer to the Safety Data Sheet (SDS) for information on identified hazards and recommended personal protective equipment and procedures.
• Store in appropriate containers and conditions to avoid exposure to high temperatures, direct sunlight, ignition sources, oxidizing agents, alkalis, or acids, which may cause uncontrollable polymerization.
• Handle with adequate ventilation and follow proper handling and storage protocols outlined in the SDS.

Overall, EBECRYL® 8702 is suitable for applications where a combination of toughness, abrasion resistance, and durability is required, especially in industries such as automotive coatings, wood coatings, and screen printing.