Overview
BLS® 550 is a liquid light stabilization system designed for use in coatings and plastics. It is fully formulated for convenience and effectiveness. BLS® 550 boasts excellent solubility in solvents and compatibility with various resins. With low volatility, it provides exceptional stability, surpassing typical benzotriazole and benzophenone UV absorbers. This product is particularly well-suited for epoxy and polyurethane coatings applications.
Chemistry
Chemical Name: Proprietary
CAS Number: Proprietary
Typical Properties
Product Form: Liquid
Specific Gravity: ~ 1.04
Applications
BLS® 550 provides excellent performance as a light stabilizer system in coatings and plastics. It demonstrates remarkable solubility in solvents and compatibility with a variety of resins. BLS® 550 provides outstanding light stability to epoxy and polyurethane (PUR) systems and exhibits strong UV absorbance at wavelengths critical to UV degradation for these polymers. Moreover, BLS® 550 demonstrates reduced discoloration compared to conventional UV absorbers and blends. Its miscibility with diglycidyl ethers, as well as polyether- and polyester-based polyols, facilitates easy stabilizer dosing during formulation. Additionally, BLS® 550 shows synergistic effects with antioxidants like BNX 1135 and BNX 245, enhancing overall stability and performance in coatings applications.
Advantages
- Excellent light stability in coatings and plastics, particularly for epoxy and polyurethane systems.
- Extraordinary solubility and compatibility with various resins for easy formulation.
- Reduced discoloration compared to conventional UV absorbers and blends.
- Synergistic effects with antioxidants like BNX 1135 and BNX 245 enhance overall stability and performance.
- Easy stabilizer dosing during formulation due to excellent miscibility and compatibility with coating solvents
Guidelines for Use
Suggested use levels in coatings range from 0.5 to 5% based on total solids, depending on the film thickness, substrate, and performance requirements. As very general guidelines, concentrations of 2.5–5% by weight are suggested for coatings of 10–20 microns dry thickness, 1.25–2.5% by weight for coatings of 20–40 microns dry thickness, and 0.5–1.25% by weight for coatings of 40–80 microns dry thickness. The exact formulation should be determined by the user based on testing to simulate actual conditions of use. Please contact your Mayzo representative for specific recommendations for your application.
Storage
This product may be stored up to two years in a sealed container. Containers should be kept tightly closed when not in use and stored in a cool, dry place.
Safety
Please consult the Safety Data Sheet (SDS) prior to handling or using this product.
FDA Regulations
BLS® 550 has not been cleared by the FDA for use in food contact applications.
