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Casathane® SP2640

1 of 11 products in this brand
Casathane® SP2640 is a tin-free, film-forming, non-reactive polyurethane designed for use in flexo or gravure packaging inks. Casathane® SP2640 is compatible in all proportions with nitrocellulose, has excellent reducibility with alcohols and esters and has low odor and high flexibility.

Chemical Family: Polyurethanes (PU), Urethanes

End Uses: Flexography Ink, Gravure Ink

Features: Excellent Adhesion, Improved Flexibility, Low Odor

Technical Data Sheet
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Identification & Functionality

CASE Ingredients Functions
Technologies

Features & Benefits

Labeling Claims

Applications & Uses

Product Applications

Casathane® SP2640 is intended for use in inks for flexible packaging. Inks made on Casathane® SP2640 offer excellent adhesion to a wide range of flexible films. By appropriate modification, inks for both surface print and lamination may be formulated. Casathane® SP2640 is particularly suited to lamination applications where good heat resistance is required.

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Solids Content40 - 45%
Solution Viscosity (PRS at 25°C)15.0poise
SolventEthyl acetate
Isocyanate Value0.0%
Flash Pointmax. 21°CAbel Closed Cup

Storage & Handling

Shelf Life
12 months
Shelf Life & Handling

Store under cool, dry conditions. It is recommended that the material be used within 12 months of certification.

Casathane® SP2640 is a flammable solution and should be stored and used in accordance with the appropriate regulations. For more detailed information, see appropriate Material Safety Data Sheet.