company tower banner
Nova Pressroom Products Company Logo

NovaCoat AQ-639

1 of 15 products in this brand
NovaCoat AQ-639 was formulated to be an all-purpose gloss coating with excellent runnability. AQ-639 can be used for 2- sided work and has good intercoat adhesion for UV and foil stamping. TEST BEFORE USING.

Product Type: Radiation Curable Coating, Waterborne Coating

Features: Excellent Intercoat Adhesion, Fast Drying, Good Scratch Resistance, Good Surface Gloss, Recoatability, UV Curable

Application Method: Flexography

  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Features & Benefits

Features
  • Fast dry.
  • General purpose coating.
  • Recoatable.

Applications & Uses

Application Method
Cure Method
Directions

Mix before use and check viscosity. Add 1% water or 50/50 blend of W ater/IPA under agitation to reduce coating viscosity 4” # 3 Zahn. DO NOT FREEZE.

Properties

Specifications
ValueUnitsTest Method / Conditions
Flash Point (TCC)min. 200°F
pH Value8.2 - 9.2
Weight/Gallon8.76
Gloss15 - 35
Rub Resistance2022-08-10
Slip (face to face)15 - 18 degrees
COF (face to face).26 -.32
Block Resistance (face to face, 100% RH, 24hr)Pass 120°F
Gluing, StampingSuitable with some glues and foils, Test First.
UV PrimerSuitable with some UV coatings, Test First.
Viscosity (#3 Signature Zahn Cup , 77°F)18 - 20
InksUse recoatable inks only
Dilution (water will reduce viscosity 3” #3 Zahn)1.0%
Wet Film Weight3 - 6micron
Percent Solids40.0 +/- 2
Freeze/Thaw Stability1.0cycle
DryingPile 105 F 1st side, 95F 2nd side
Clean-UpWarm water. Water + ammonia for dried coating.

Storage & Handling

Shelf Life
12 months, 6 after opening