Technical Data Sheet
Eastek™ 5545 polymer

Applications Adhesives Adhesives/sealants-B&C Electronics 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™ 5545 polymer is a high-performance polyester resin for polyurethane hot melt electronic adhesives. Eastman Eastek 5545 polymer is featured with reduced viscosity, increased Tg, and improved formulation compatibility to enable greater productivity, application consistency, long-term durability, and design flexibility in multi-substrate electronic bonding applications.

Typical Properties

Property	Typical Value, Units
General
Viscosity
@ 130°C	90-130 Pa.s
Color	Amber
Acid Number	<2 mg KOH/g
Hydroxyl Number	35-45 mg KOH/g
Moisture Content	<500 ppm
Tg	45 °C

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.

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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.

2/27/2023 7:17:21 PM