Covinax 258-00

PRODUCT DESCRIPTION

Covinax 258-00 is a 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 258-00 can also be blended with other polymers to impart low temperature properties to those polymers or to develop products which are all temperature grades. Covinax 258-00 is FDA compliant under: 21CFR 175.105, 21CFR 176.180, 16CFR 1500.3(C)(4),and 16CFR 1500.3(C)(2)(i).


PHYSICAL PROPERTIES 

Polymer Type: Acrylic                                                        

Protective System: Anionic

Color: White                                              

Viscosity (cps): 100 - 600 (LVF, Spindle #3/60 RPM /77°F)      

Percent Solids (%): 58.5 - 61.0                                           

pH: 3.8 - 4.5     

Weight Per Gallon: 8.5

Shelf Life: 3 months

Freeze/Thaw Stability: Unstable

Borax Compatible: Yes                                          

Glass Transition Temperature (Tg): On-Set (DSC): -72.7°C 

                                                     Mid-Point (DSC): -64.8°C

 


PERFORMANCE PROPERTIES

A 1 mil (28g/m2) dry film of Covinax 258-00 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                              1.0 minimum

178° Shear Adhesion2 (minutes)                   27                               15 minimum      

Loop Tack3 (lb)                                             3.3                              2.0 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: 21 CFR 175.105;

                               21CFR 176.180;

                              16CFR 1500.3(C)(4);

                              16CFR 1500.3(C)(2)(i).

 

 

1Franklin International 03QC5002, 30 minute dwell.

2Franklin International 03QC5003, 1.00 square inch, 500 gram load, 10 minute dwell.

3Franklin International 03QC5004, 1 square inch contact, 1 second dwell.

 

 

 

 

 

 

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.
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