Hauthane L-3415
A VOC-free, water-borne, UV-curable polyurethane dispersion.
Suggested Uses: Hauthane L-3415 is designed for UV-cured wood and plastic topcoat applications where highly chemical- and abrasion-resistant films are required. Potential end-use applications include automotive plastics, kitchen cabinets and wood flooring.
Characteristics:
- VOC-free, APEO surfactant free
- Excellent chemical and stain resistance
- Forms durable, films under ambient or force-dried conditions
- Superior abrasion resistance
- Fast water-release properties
Physical Properties
Solids | 35 % |
Solids Tolerance | ± 1 % |
Viscosity | 20 to 200 cps |
pH | 5.0 to 7.0 |
Density | 8.7 lb/gal |
Uncured Softening Point | 280 ºF |
Cured Softening Point | >500 ºF |
Volatile Organic Compounds (VOC) Content (As Supplied) | 0 g/L |
Volatile Organic Compounds (VOC) Content (Less Water) | 0 g/L |
Sward Hardness | After UV curing - 43 |
Application
L-3415 may be applied by spray or gravure methods. Films must be dried completely before UV energy cure. UV irradiation is required to attain optimal film properties, but un-cured coating films are durable enough for handling or walking on prior to curing.
Curing
L-3415 must be air-dried, or oven dried (temperature: 150 – 170 ºF; dwell time: 10 minutes) to remove water from the film prior to UV exposure. A photo-initiator must be incorporated into the coating formulation for effective curing. See starting point formulations for suggestions. Exposure guidelines: MPMA lamp – 300 watts/in2, 2.0 – 3.0 second dwell time.