EBECRYL® 6637

EBECRYL® 6637 is a urethane acrylate resin, primarily composed of a mixture of high molecular weight aliphatic urethane diacrylate resin and 20% methyl methacrylate (MMA) monomer. Here's a breakdown of its characteristics and suggested applications:

Introduction:

• EBECRYL® 6637 is characterized by its light color and low viscosity.
• Coatings based on this resin offer improved flexibility and are non-yellowing.

Performance Data:

• Dynamic viscosity at 25°C: Approximately ±1500 mPa.s
• Colour (Apha): ≤ 50

Physical Properties:

• Molecular weight (theoretical): 5000
• Functionality (theoretical): 2
• Polymer solids: 80% by weight

Suggested Applications:

• Concrete coatings for non-UV curing processes.

Storage and Handling:

• Avoid exposing radiation-curable products to temperatures exceeding 40°C for prolonged periods or direct sunlight to prevent uncontrollable polymerization.
• Store and handle in stainless steel, amber glass, amber polyethylene, or baked phenolic lined containers.
• Use dry air to displace material removed from the container.
• Do not store for more than 2 years.

Precautions:

• Toxicological properties of this material are not fully determined. It can be expected to be an eye and skin irritant and may cause sensitization or other allergic responses.
• Take appropriate precautions to avoid eye and skin contact and inhalation of aerosols or vapors.
• Consult the Safety Data Sheet for detailed handling procedures and protective equipment recommendations.

Statutory Labeling:

• Refer to the Safety Data Sheet for detailed information.

In summary, EBECRYL® 6637 is a resin suitable for applications requiring improved flexibility and non-yellowing properties, such as concrete coatings in non-UV curing processes. Proper storage, handling, and precautionary measures are essential due to its potential irritant properties.