UCECOAT® 7850

UCECOAT® 7850 is a tin-free radiation curable polyurethane dispersion primarily designed for wood coatings but can also be utilized in other applications. Here's a breakdown of its key features and characteristics based on the provided technical datasheet:

Introduction: UCECOAT® 7850 is a radiation curable polyurethane dispersion that remains tack-free before and after curing, following water evaporation. Its low viscosity and non-irritant nature allow for safe application via spray coating and curtain coating methods.

Performance Highlights:

• Translucent appearance
• Low viscosity
• Tack-free property before and after cure, post-water evaporation
• UV/EB cured products exhibit:
  • High flexibility
  • High hardness

Suggested Applications: Formulated UV curable products containing UCECOAT® 7850 are suitable for application via spray and curtain coating methods, particularly in wood coatings.

Typical Values:

• Brookfield viscosity at 25°C: maximum 200 mPa.s
• Appearance: Translucent liquid

Physical Properties:

• Density: 1.0 g/cm³
• pH: 7.0 - 8.0
• Particle size: < 100 nm
• Polymer solids: 35% by weight

Storage and Handling:

• Avoid exposing radiation curable products to temperatures exceeding 40°C for prolonged periods or direct sunlight to prevent uncontrollable polymerization.
• Due to the presence of water, store UCECOAT® 7850 above freezing temperatures.
• Storage and handling should be in suitable containers such as stainless steel, amber glass, amber polyethylene, or baked phenolic lined containers. Avoid storing under an oxygen-free atmosphere.

Precautions:

• Toxicological properties are not fully determined, but products of this type may cause eye and skin irritation and have the potential to cause sensitization or other allergic responses.
• Appropriate precautions, including avoiding eye and skin contact and inhalation of aerosols or vapors, should be taken.
• Consult the Safety Data Sheet for comprehensive handling procedures and protective equipment recommendations.

Statutory Labeling: Refer to the Safety Data Sheet for statutory labeling information, including emergency and first aid procedures.

In summary, UCECOAT® 7850 offers a versatile solution for formulating radiation-curable coatings with excellent properties suitable for various applications, particularly in wood coatings, while emphasizing safety and ease of application.