Covinax 379-05 is a coater-ready surfactant stabilized acrylic adhesive, which was developed for use in permanent pressure sensitive applications. It has excellent wing-up resistance and has found use in pharmaceutical labeling applications requiring adhesion to curved or irregularly shaped surfaces. It has an excellent balance of peel and shear strength, which allows it to be converted into rolls or sheets without sticky edge problems. Covinax 379-05 is specifically designed to be transfer coatable on slot die coaters and may be used on most rod or roll coaters. Covinax 379-05 is FDA compliant under 21CFR 175.105.
Polymer Type: Acrylic Protective System: Anionic Color: White Viscosity (cps): 350 - 850 (RVF, Spindle #3/50RPM/77° F) Percent Solids (%): 57.0 - 59.0 pH: 4.6 - 5.6 Weight Per Gallon: 8.5 Glass Transition Temperature (Tg): (DSC): -39.1° C
A 1 mil (28g/m2) dry film of Covinax 379-05 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) 2.6 1.7 minimum 178° Shear Adhesion2 (minutes) 185 40 minimum Loop Tack3 (lb) 1.7 1.1 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
C = Cohesive A = Adhesive PT = Paper Tear FP = Fiber pick
Yellowing (Colorimeter “b” value)
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. © Copyright 2023. All rights reserved. Franklin International. Revised 06/20/2023.