Covinax 525-66 DEV

PRODUCT DESCRIPTION

COVINAX 525-66 DEV is a surfactant stabilized vinyl acrylic copolymer emulsion developed for high performance permanent pressure sensitive adhesive applications. It has an excellent balance of peel adhesion and shear adhesion. COVINAX 525-66 DEV is internally cross linked, giving it superior cohesive strength. In addition, it has been tested on vinyl film used in digital graphics applications and exhibits good plasticizer migration resistance. It will resist cold flow and will die cut and convert well, giving dry edges to finished sheets and rolls.


PHYSICAL PROPERTIES

Polymer Type: Vinyl Modified Acrylic Copolymer                                                
Protective System:
Anionic
Color:
White                                                    
Viscosity (cps):
800 - 1100 (RVF, Spindle #3/20 RPM /77° F)         
Percent Solids (%):
54.0 - 57.5                                                 
pH:
4.8 - 5.8     
Weight Per Gallon:
8.7
Shelf Life:
3 months     
Freeze/Thaw Stability:
Unstable
Borax Compatible:
Yes                                                  
Glass Transition Temperature (Tg):(DSC):
-37.6°C

 

PERFORMANCE PROPERTIES

 A 1 mil (28g/m2) dry film of COVINAX 525-66 DEV cast directly onto 1 mil thickness polyester film will exhibit the following average performance properties when tested on #304 stainless steel, which has a #3 surface finish.
 
Test                                               Typical Values             Specification Range         
180° Peel Adhesion1 (lb)                                  2.3                            1.6 minimum
178° Shear Adhesion2 (minutes)                    940                           330 minimum
Loop Tack3 (lb)                                         1.8                            1.0 minimum

 

Minimum Application Temperature:   >32°F                                 N/A     
Service (Use) Temperature:          20°F to 250°F                           N/A 


NOTE:  Minimum application and service temperatures are dependent upon many factors including face stock, adhesive coat weight, adhesion, and intended application.  We can only offer an estimate based on the Tg and typical performance properties of the adhesive.

 

FDA Compliance: 21CFR 175.105

 
 
 
 

IMPORTANT NOTICE TO CUSTOMER:

The recommendations and data contained in this Product Data Sheet for use of this product are based on information Franklin believes to be reliable. They are offered in good faith without guarantee, as conditions and methods of use of our product by Customer are beyond Franklin’s control. Customer must determine the suitability of the product for a particular application before adopting it on a commercial scale.

All orders for Franklin products shall be subject to Franklin International, Inc.’s Standard Terms and Conditions of Sale which may be found at http://www.franklini.com/Terms_and_Conditions.aspx (“Standard Terms”). Different or additional terms proposed by Customer are expressly rejected and shall not become part of the agreement between Customer and Franklin International, Inc. with respect to any order. Contact Franklin International, Inc. immediately if you cannot access our Standard Terms and we will provide you a copy upon request. Any sale of products by Franklin to Customer is expressly conditional upon Customer’s consent to the Standard Terms, and Customer’s acceptance of any performance by, or receipt of products from, Franklin International, Inc. shall constitute Customer’s acceptance of the Standard Terms and Conditions of Sale.
© Copyright 2019. All rights reserved. Franklin International. Revised 01/25/19.