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Technical Data Sheet
Eastek™ 4500 polymer

  • Adhesives
  • Adhesives/sealants-B&C
  • Polyurethanes
Key Attributes
  • Enhanced compatibility with tackifiers
  • Excellent green strength
  • Good heat and hydrolytic stability
  • High Tg
  • Improved UV resistance
  • Low Viscosity
  • Superior adhesion to low surface energy substrates

Product Description
Eastman Eastek™ 4500 polymer is a high-performance polyester resin for polyurethane hot melt adhesive applications. Eastman Eastek 4500 polymer is designed to reduce viscosity, increase Tg, enhance UV resistance, and improve formulation compatibility to enable greater productivity, application consistency, and long-term durability of the bonded structure.

Typical Properties

PropertyTypical Value, Units
     @ 130°C90-130 Pa.s
Acid Number<2 mg KOH/g
Hydroxyl Number35-45 mg KOH/g
Moisture Content<500 ppm
Tg45 °C

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.

9/28/2023 11:30:18 AM