Eastman™ HPHP Glycol Nuggets

Application/Uses

- Automotive coatings
- Automotive OEM
- Coil coatings
- Powder coatings

Key Attributes

- Excellent weathering
- Improved flexibility
- Improved resin solubility
- Lower resin melt viscosity
- Reduced resin crystallinity
- Reduced resin glass transition temperature

Product Description

Eastman™ HPHP glycol, hydroxypivalylhydroxypivalate, is a difunctional ester-glycol used for manufacturing polyester resins for the powder, coil, and automotive coatings market. HPHP is structurally similar to Eastman NPG™ glycol so they share many of the same structure/property relationships.

Resins containing HPHP impart flexibility to coatings while maintaining weathering and the overall good balance of mechanical properties provided by NPG. Consequently, HPHP is an excellent choice for automotive primer surfacers with increased chip resistance and coil coatings that require a high degree of flexibility and exterior durability. In powder coatings, HPHP enhances the appearance of the coating film by improving flow and leveling during cure without compromising package stability.

Eastman™ HPHP is available in three forms:

• Cast solid in drums requiring a hot room or drum heater to melt the drum contents for removal.
• Free-flowing nuggets in bags that have good resistance to caking.
• Bulk molten shipped in tank trucks requiring a heated tank for storage.

For more information, to request a sample, or to receive a copy of Eastman publication, Storage and Handling of HPHP Glycol™, contact an Eastman Technical Service Representative.

Typical Properties

Property	Typical Value, Units
Molecular Weight	204.27
Empirical Formula	C10H20O2
Appearance	White, irregularly shaped
Color (Molten)Pt-Co Scale	10 max.
Assay	97.5 wt % min.
Neopentyl Glycol	1 wt % max.
Aldehyde as Hydroxypivaldehyde	0.5 wt % max.
Water	0.5 wt % max.
Acidityas Acetic Acid	0.5 wt % max.
Hydroxyl Content	15.3-17.3%
Solubilityin Water	12.8%
Melting Point	46-50°C (114.8-122°F)
Boiling Point@ 760 mm Hg	293°C (495.4°F)
Flash PointCleveland Open Cup	161°C (322°F)
Specific Gravity@ 55°C/20°C	1.01

Comments

Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.

Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.