DESCRIPTION: A hard, NMP-free, APEO-free, aliphatic, polyester-based, aqueous polyurethane dispersion with an exceptional balance of properties.
SUGGESTED USES: L-2877 was designed for topcoat applications on a wide variety of substrates, including concrete, metal, plastic and wood.
CHARACTERISTICS:
- Balance of toughness, abrasion- and mar-resistance
- Outstanding water and chemical resistance
- Excellent exterior weathering performance
- Can be crosslinked to enhance performance
- Dilution and clean-up with ordinary tap water
- Contains dipropylene glycol dimethyl ether (DMM) co-solvent
APPLICATION: L-2877 can be used as a sole vehicle or blended with acrylic emulsions for spray or rotogravure applications. Rheology modifications can be made with associative thickeners for alternative application methods.
DRYING: L-2877 can be air dried, if desired, depending on film thickness. Typical drying temperatures and dwell times for aqueous coatings are sufficient to produce optimal film properties.
| PHYSICAL PROPERTIES* |
TENSILE PROPERTIES** |
| SOLIDS: 35%(± 1%) |
(TESTED AT 20 INCHES/MINUTE) |
| VISCOSITY: 50-300 cps* |
ELONGATION: 235% |
| pH: 8.5-10.0 |
TENSILE STRENGTH: >7000 psi |
| DENSITY: 8.7 lbs/gal |
100% MODULUS: 4800 PSI |
| SOFTENING POINT: 350°F |
200% MODULUS: 6700 PSI |
| VOC CONTENT: 65 g/l |
300% MODULUS: NA |
| SWARD HARDNESS: NA |
|
* Provisional - This is an experimental product. Physical properties are considered provisional until at least 10 production batches have been produced.
** Films are coalesced with 5% DPM to ensure optimal film formation.
|