Technical Data Sheet
Eastek™ 4500 polymer
Applications
Adhesives
Polyurethanes
Key Attributes
Enhanced compatibility with tackifiers
Excellent green strength
Good heat and hydrolytic stability
High Tg
Low viscosity
Outstanding UV resistance
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
Property
Typical Value, Units
General Properties
Hydroxyl Number
a
38-43 mg KOH/g
Acid Number
b
Max. 1.5 mg KOH/g
Viscosity, Brookfield
@ 130°C
90-120 poise
Color
c
<200
Glass transition temperature (DSC)
44-46 °C
Moisture Content
d
<0.1 %
Open Time
e
<5 seconds
a
ASTM E222
b
ASTM D664
c
ASTM D1209
d
ASTM D1533
e
Eastman Internal Method
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.
1/17/2024 3:33:23 PM