A hard, NMP-free, aliphatic, polyester polyurethane dispersion.
Suggested Uses: L-2875 was designed for topcoat applications on a wide variety of substrates, including concrete, metal, plastic and wood.
- Contains DMM co-solvent
- Produces clear, durable films with low levels of co-solvent (<100 g/l)
- Excellent non-yellowing properties
- Good water and chemical resistance
- Produces tough, abrasion and mar resistant films
|Solids ||38 %
|Solids Tolerance ||± 1 %
|Viscosity ||50 to 500 cps
|pH||7.0 to 9.5
|Density ||8.7 lb/gal
|Softening Point ||345 ºF
|Volatile Organic Compounds (VOC) Content (As Supplied) ||30 g/L
|Sward Hardness ||46
|Elongation ||190 %
|Tensile Strength ||>5900 psi
|100 % Modulus ||4400 psi
|Note||Tested at 2 Inches/Minute
L-2875 can be used as supplied or blended with acrylic emulsions for spray, dip or rotogravure applications. It can be thickened with associative thickeners for knife-over-roll or similar methods.
Due to the co-solvent free nature of L-2875, the addition of coalescing solvent is recommended to achieve optimal film formation. In ambient-cured systems the addition of 5 – 10 % coalescing solvent is suggested. Less coalescing solvent is required in heat-cured systems to attain comparable film properties. Typical drying temperatures and dwell times for aqueous coatings are sufficient to optimize film characteristics