InChemRez Phenoxy PKHW-34 - Brenntag

InChemRez Phenoxy PKHW-34
Waterborne Phenoxy Resin
InChemRez Phenoxy PKHW-34
Waterborne Phenoxy Resin
InChemRez Phenoxy PKHW-34 is a waterborne colloidal dispersion of high
molecular weight Phenoxy resin designed for thermoset and lowbake
coatings & adhesives.
Phenoxy resins (polyhydroxyethers) are tough, ductile, amorphous polymers
having excellent thermal stability, adhesive and cohesive strength,
and excellent vapor barrier properties. Phenoxy resins also react with
crosslinkers like isocyanates, phenolic & melamine resins, and W/B
polyaromatic acids along the backbone hydroxyl groups.
PKHW-34 is compatible with most waterborne polyurethanes and acrylics
at pH’s greater than 6.5. PKHW-34 contains approximately 10% by
weight volatile organic compounds (VOC’s) including non-HAP
propylenegycol propyl ether, n-butanol, and a small amount of
dimethylethanolamine. PKHW-34 has a hydroxyl equivalent weight of
about 400 on a solids basis. Recommended levels of crosslinkers range
from 10 to 20 phr based on resin solids.
TYPICAL PROPERTIES
Percent Solids .......... 34
Viscosity .......... 1100 cP
Brookfield @ 25°C
pH .......... 7.3
VOC’s .......... 2.0 pounds
Particle size .......... 0.09 microns
InChem
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InChemRez Phenoxy PKHW-34
Safety and Handling
APPLICATIONS
● Thermoset Waterborne
Coatings
● Plural Component
Coatings and Adhesives
InChemRez Phenoxy PKHW-34 is sold in 55-gallon open head lined
steel drums at 463 pounds (210 kg) net weight. the resin may be
stored at normal temperatures for up to one year. Avoid freezing
and avoid temperatures above 110ºF.
PKHW-34 is a combustible fluid due to the presence of organic
solvents; closed cup flash point is above 141ºF.
PKHW-34 is incompatible with acidic materials; low pH media
can cause loss of dispersibility and precipitation of the base resin
in PKHW-34.
Consult the product MSDS for additional information on properties,
hazards, and handling.
InChem Corp • 800 Cel-River Road • Rock Hill, South Carolina 29730 • Tel: (803) 329-8000 • Fax: (803) 328-3827
IMPORTANT :
This information is not to be taken as a warranty or representation for which we assume legal responsibility nor as permission or recommendation to practice any patented invention without a license. It is
offered solely for your consideration, investigation, and verification. Since your specific use application and conditions of use are beyond InChem Corp.’s control, you must determine the suitability of the
products and the suggestions mentioned herein for your specific application.

PKHW-34 Specifications
Solids (wt. %) 33.0 - 35.0
Viscosity (cP @ 25°C, #4 at 50 rpm) 800 - 1600
pH 6.8 - 7.8
Propylene glycol n-propyl ether (wt. %) 5 - 7
n-Butanol (wt. %) 2 - 4
N, N-Dimethyl ethanolamine (wt. %) 1 - 3
Appearance white, blue cast
Other Properties (typical)
Weight per gallon 8.7 - 8.9 pounds
Flash point (PMCC) 145°F min.
Freeze point -4°C (25°F)
Particle size range 0.04 - 0.20 microns
mean; and stand. deviation 0.09 microns; 0.025 microns
VOC’s 1.81 - 2.15 lb/gal
217 - 258 gm/liter
Solids (volume %) 29.6
Acid number (on solids) 47 - 53
Water (wt. %) 53 - 55
Heat stability (7 days at 140°F) pass
Freeze/thaw stability (3 cycles) pass
Shear stability (Waring blender, 5 min.) pass
PKHW-34 is an anionically-stabilized colloidal dispersion
of a solid grade Phenoxy resin. The dispersion is a
non-Newtonian fluid at room temperature; it exhibits very
slight thixotropic behavior. PKHW-34 displays excellent
shelf stability, however at pH’s below 6.5 the disperse
phase will become unstable and some coagulum will
likely form.
PKHW-34 provide both hydroxyl groups and carboxyl
groups for subsequent crosslinking at elevated
temperatures in thin coatings on metals, glass, and
plastic. At room temperature PKHW-34 will crosslink
with polyaziridines, and at low bake conditions the
neat dispersion will develop water resistance, acid/
base resistance, and select solvent resistance. All
properly formulated thermoset coatings of PKHW-34
display excellent flexibility and surface hardness.
The addition of PKWH-34 to ambient cure 2k waterborne
formulations can improve ultimate film hardness,
shorten dry-to-touch times, and improve gloss.
Crosslinkers such as alkylated phenolics and
melamines are readily dispersed in PKHW-34 to provide
shelf-stable single pack thermoset formulations. Refer
to Technical Data Bulletin PS001 for more information.
The polymer in PKHW-34 is compliant with
21CFR175.300 for FDA applications such as beer &
beverage containers, drum linings, flexible packaging.
InChem Corp • 800 Cel-River Road • Rock Hill, South Carolina 29730 • Tel: (803) 329-8000 • Fax: (803) 328-3827
IMPORTANT :
This information is not to be taken as a warranty or representation for which we assume legal responsibility nor as permission or recommendation to practice any patented invention without a license. It is
offered solely for your consideration, investigation, and verification. Since your specific use application and conditions of use are beyond InChem Corp.’s control, you must determine the suitability of the
products and the suggestions mentioned herein for your specific application.