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Gabriel® PKHW-35
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Gabriel® PKHW-35

Gabriel Phenoxy PK™HW-35 is a waterborne anionically-stabilized colloidal dispersion of phenoxy resin PKHH designed for thermoset coatings and adhesives. The dispersion is a non-Newtonian fluid at room temperature and exhibits very slight thixotropic behavior. Phenoxy resins (polyhydroxyethers) are tough, ductile, amorphous, thermoplastic polymers having excellent thermal stability, adhesive strength, and vapor barrier properties. Phenoxy resins may be crosslinked by reacting its hydroxyl functional groups with isocyanates, melamine resins, or phenolic resins. Crosslinked phenoxy resins exhibit excellent chemical resistance, hardness, and adhesion on many substrates including steel, aluminum, glass, carbon fibers, and plastics such as nylon and polyester (PET). The recommended level of crosslinking range from 5 to 20 phr based on resin solids. PKHW-35 is compatible with most waterborne polyurethanes and acrylics at pH’s greater than 6.5. PKHW-35 is incompatible with acidic materials; low pH media can cause loss of dispersibility and precipitation of the base resin. The addition of PKWH-35 to ambient cure 2k waterborne formulations can improve ultimate film hardness, shorten dry-to-touch times, and improve gloss. Physical properties can be further enhanced with the use of ambient-cure crosslinkers such as aliphatic isocyanates, carbodiimides, polyaziridines, and epoxy silanes. Crosslinkers such as alkylated phenolics and melamine’s are readily dispersed in PKHW-35 to provide shelf-stable, single pack, thermoset formulations. All properly formulated coatings of PKHW-35 display excellent flexibility and surface hardness. PKHW-35 typically contains less than 12% by weight volatile organic compounds (VOC’s) including non-HAP ethylene glycol butyl ether (butyl cellosolve, Glycol Ether EB) and dimethylethanolamine.
Product Resources

Knowde Enhanced TDS

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Identification & Functionality

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Features & Benefits

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Applications & Uses

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Applications
Coating Type
Typical Applications
  • Thermoset Waterborne Coatings
  • Plural Component Coatings and Adhesives
  • Glass Fiber Sizing

Properties

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Carrier Type
Compatible Substrates & Surfaces
Odor
Mild Sweet
Compatible with
Waterborne Polyurethanes
Incompatible with
Acidic Materials
Typical Properties
ValueUnitsTest Method / Conditions
Solids30 - 32%-
Viscosity, Brookfield, (25 °C); (20% solution in cyclohexanone)1000 - 4000cP-
OH Equivalent Weight (solids basis, g/equiv.)250 - 260--
OH Equivalent Weight (solids basis)250 - 260g/equiv.-
Particle size mode (microns)1 - 3--
Particle size mode1-3microns-
Particle size (99%, microns)3 - 7--
Particle size (99%)3-7microns-
pH6.8 - 7.8--

Regulatory & Compliance

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Regulatory Status

TSCA (USA), DSL (Canada), PICCS (Philippines), AICS (Australia), ENCS/MITI (Japan), IECSC (China).

Polymer Exempt: EINECS (EU)

Technical Details & Test Data

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Manufacturing Location

Rock Hill, South Carolina, USA.

Storage & Handling

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Storage and Handling

Gabriel Phenoxy PKHW-35 is sold in 55-gallon open head lined steel drums at 485 pounds (220 kg) net weight. The resin may be stored at normal temperatures for up to one year. Avoid freezing and temperatures above 110 °F (43 °C).

Phenoxy PKHW-35 meets USFDA requirements for use in food contact and packaging applications (21 CFR 175.300).

Most Viewed Documents

View All 3 Documents

Document Name
Type
Products
Learn More
PKHW-35 Technical Data Sheet
Technical Data Sheet
Gabriel® PKHW-35
Technical Data Sheet
Products: Gabriel® PKHW-35
PKHW-35 Safety Data Sheet
Safety Data Sheet
Gabriel® PKHW-35
Safety Data Sheet
Products: Gabriel® PKHW-35
Phenoxy Prodcut Brochure
Brochure
Gabriel® PKFE PELLETS, Gabriel® PKHA PELLETS, Gabriel® PKHP-80, Gabriel® PKHB+, Gabriel® PKHH, Gabriel® PKHJ PELLETS, Gabriel® PKHS-30 PMA, Gabriel® PKHS-40, Gabriel® PKHS-MI, Gabriel® PKHW-34, Gabriel® PKHW-35, Gabriel® PKHW-38, Gabriel® PKHM-301, Gabriel® PKHB Pellets, Gabriel® PKHC Pellets, Gabriel® PKHP-200 Powder
Brochure
Products: Gabriel® PKFE PELLETS, Gabriel® PKHA PELLETS, Gabriel® PKHP-80, Gabriel® PKHB+, Gabriel® PKHH, Gabriel® PKHJ PELLETS, Gabriel® PKHS-30 PMA, Gabriel® PKHS-40, Gabriel® PKHS-MI, Gabriel® PKHW-34, Gabriel® PKHW-35, Gabriel® PKHW-38, Gabriel® PKHM-301, Gabriel® PKHB Pellets, Gabriel® PKHC Pellets, Gabriel® PKHP-200 Powder
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