Covinax 258-04

PRODUCT DESCRIPTION


Covinax 258-04 is a coater-ready, surfactant stabilized acrylic copolymer developed for use as a freezer grade pressure sensitive adhesive. It has extremely low glass transition temperature allowing it to adhere to frozen surfaces and its aggressive tack permits application through thin layers of moisture or frost. Covinax 258-04 can also be blended with other polymers to impart low temperature properties to those polymers or to develop products which are all temperature grades. It is transfer coatable on slot-die, rod or roll coaters. Covinax 258-04 is FDA compliant under 21CFR175.105.



PHYSICAL PROPERTIES 

Polymer Type:  Acrylic                                                             

Protective System: Anionic

Color: White                                                    

Viscosity (cps): 550 - 850 (RVF, Spindle #3/50/77° F)                   

Percent Solids (%): 57.0 - 59.0                                                 

pH: 4.0 - 5.0

Weight Per Gallon: 8.5
Glass Transition Temperature (Tg): (DSC): -70.1° C

 


 

PERFORMANCE PROPERTIES

A 1 mil (28 g/m2) dry film of Covinax 258-04 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)                                 1.1                              0.70 minimum
178° Shear Adhesion2 (minutes)                      20                                    15 - 85
Loop Tack3 (lb)                                                2.8                            2.00 minimum

 



Minimum Application Temperature:        -20°F to -10°F               N/A

Service (Use) Temperature:                      -40°F to 200°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

  


 

AVERAGE APPLICATION PROPERTIES

       C = Cohesive     A = Adhesive     PT = Paper Tear      FP = Fiber pick



ADDITIONAL INFORMATION

Yellowing (Colorimeter “b” value)
 
 

STORAGE AND HANDLING

Shelf life: Best if used within three months of date of manufacture. Mix before use for best results. Product is not freeze/thaw stable. 

For additional questions, Franklin’s technical service team is available at 1.800.877.4583. 24/7 technical service is available online at www.franklinadhesivesandpolymers.com.

 
 
 
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.
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