Omnirad 819 DW

Omnirad 819 DW (Former Irgacure 819DW) by IGM Resins is a versatile photoinitiator for radical polymerization of unsaturated resins upon light exposure.

• It is especially suited for the curing of pigmented water-based polyurethane dispersions (PUDs) and acrylic dispersions as well as the daylight curing of PUD-based clear coats.
• It can also be used in combination with light stabilizers.
• Other possible uses includes thick section curing, emulsion-type and 100% UV systems.
• It is suitable for surface, through and LED cure.
• It is designed for white, clear and pigmented systems.
• Its photosensitivity at longer wavelengths allows to be used in combinations with UV absorbers, e.g., Omnistab 1130.
• It is ideally suitable for weather-resistant UV-curable coatings.
• The recommended addition level for water-based pigmented polyurethane dispersions is 0.5-1.0% + 1.0-2.0% Omnirad 500, UV-stabilized clear PUD is 0.4-0.6% + 1.0-1.5% Omnirad 500 and daylight-curing clear PUD is 0.5-1.0 % + 0.5-1.0% Omnirad 500.
• It is used in wood, metal, plastic, paper as well as printing and screen inks.
• Omnirad 819 DW has a shelf life of 12 months.