EBECRYL® 8811

EBECRYL® 8811 is a difunctional aliphatic urethane acrylate primarily used in ultraviolet light (UV) or electron beam (EB) energy curable coatings. Here's a summary of its key features and specifications:

Introduction:

• EBECRYL® 8811 is a difunctional aliphatic urethane acrylate devoid of intentionally added organic tin compounds, heavy metals, hydroquinone (HQ), or methyl ether of hydroquinone (MEHQ).
• It offers rapid surface cure response in both low and high-energy cure systems, particularly recommended for UV LED and UVA curing to achieve good surface cure.
• Films cured by UV or EB exhibit good flexibility, toughness, abrasion resistance, and resistance to yellowing.

Performance Highlights:

• No intentionally added tin, heavy metals, or quinones.
• Moderate viscosity and light color.
• Improved surface cure in air.
• Good flexibility, toughness, abrasion resistance, and non-yellowing properties in UV/EB cured products.

Suggested Applications:

• Suitable for coatings for wood, cement, and composite flooring.
• Ideal for adhesives or sealants cured with low-intensity lamps.
• Recommended for flexible coatings requiring rapid cure in air.

Specifications:

• Appearance: Clear to Slightly Hazy
• Color, Gardner, max: 1.0
• NCO, %, max: 0.2
• Viscosity, 60°C, mPa.s: 9000 - 14000

Typical Physical Properties:

• Color, Pt-Co: ~18
• Density, g/cm³ at 25°C: 1.08
• Functionality, theoretical: 2
• Oligomer, % by weight: 100
• HQ/MEHQ content, ppm: <10/10

Typical Cured Properties:

• Tensile strength, psi (MPa): 3000 (21)
• Elongation at break, %: 80
• Young’s modulus, psi (MPa): 31300 (216)
• Glass transition temperature, °C: 52

Precautions:

• Follow safety guidelines outlined in the Safety Data Sheet (SDS).
• Store away from high-temperature conditions, direct sunlight, ignition sources, oxidizing agents, alkalis, or acids.
• Maintain adequate ventilation during use.

Storage and Handling:

• Store in appropriate containers (stainless steel, amber glass, amber polyethylene, or baked phenolic lined).
• Avoid exposure to oxygen-free atmospheres.
• Heat containers to remove high viscous foam before usage.
• Maintain recommended storage temperature range.

EBECRYL® 8811 offers a balance of properties suitable for various UV/EB curable coatings applications, providing flexibility, toughness, and resistance to yellowing while meeting regulatory standards for tin, heavy metal, and quinone content.