EBECRYL® 4150

EBECRYL® 4150 is an undiluted isocyanate functional urethane acrylate, primarily used in two-component dual cure systems for coatings applied on wood, plastic, and metal surfaces.

Here are some key points about EBECRYL® 4150:

Introduction:

• It's designed for use in UV/EB curable, two-component polyurethane coatings.
• It also serves as an adhesion promoter in UV/EB curing coatings.
• EBECRYL® 4150 can be combined with hydroxyl functional resins to create coatings that cure through dual processes: UV/EB induced polymerization and NCO/OH reaction.

Suggested Applications:

• UV/EB curable, two-component polyurethane coatings.
• Adhesion promotion in UV/EB curing coatings.
• Improving adhesion on critical substrates like plastic, metal, and exotic woods.

Formulating:

• The viscosity of EBECRYL® 4150 can be adjusted using standard reactive diluents such as dipropylene glycol diacrylate (DPGDA), 1,6-hexanediol diacrylate (HDDA), isobornyl acrylate (IBOA), and trimethylolpropane triacrylate (TMPTA).
• Suitable solvents include esters, ketones, and aromatic hydrocarbons.
• Reactive diluents and solvents containing reactive groups can strongly influence pot life and storage stability.

Coating Application:

• Coatings containing EBECRYL® 4150 are typically applied by spray, curtain, or roller coating at a coat weight of ≤ 100 g/m².
• After an adequate flash-off time of solvents, the coatings are UV/EB cured to create a tack-free and dust-dry surface.
• Following UV/EB curing, the post-reaction of NCO/OH groups occurs at room temperature or through forced reaction, resulting in good adhesion and mechanical and chemical resistance.

Specifications:

• Color (APHA): Maximum 150
• NCO content (%): 11.8 - 13.8
• Viscosity at 23°C: 7500 - 12500 mPa.s

Physical Properties:

• Density at 20°C: 1.18 g/cm³
• Flash point: > 100°C
• Functionality: Acrylate groups - 1, NCO groups - 2

Precautions:

• Follow safety guidelines outlined in the Safety Data Sheet (SDS).
• Avoid exposure to high temperatures, direct sunlight, ignition sources, oxidizing agents, alkalis, acids, or water.
• Store and handle EBECRYL® 4150 in suitable containers and conditions to prevent uncontrollable polymerization and moisture sensitivity.

Overall, EBECRYL® 4150 is a versatile material suitable for various coating applications, offering good adhesion and curing properties when used in combination with appropriate resins and curing methods.