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  POLAQUA W7
Water Based Primer
Polaqua W7 is an excellent extrusion, lamination and printing primer for use on a wide variety of accepting substrates and in particular clay coated paper surfaces. Along with its excellent grease and oil resistance, Polaqua W7 is also water and moisture resistant. High bond strengths are achieved with only minute application levels, approximately one undiluted gallon of Polaqua W7 for 20 to 30 reams (60,000 to 90,000 Ft2) of substrate.

Polaqua W7 has excellent performance as a primer on clay coated paper surfaces. Applying Polaqua W7 on a clay coated surface will allow for extremely high bond strengths from heat sealing of LDPE to the surface or for extrusions of LDPE to the clay surface. This makes Polaqua W7 suitable for priming clay coated boards for back sealing improvement in cup and box applications. In addition, Polaqua W7 will improve the bond of the clay to the paper surface.

Polaqua W7 should be applied to the substrate and dried. The extrudate, lamination or printing inks will then rigorously bond to the primed surface. The substrate may be primed and rewound for subsequent use at a later date up to 90 days with no blocking or reduction in bond strengths.

TYPICAL PROPERTIES CHARACTERISTICS
Color Light Amber
Solids 3%
Wt./Gal. 8.5 lbs
pH 8.5
Sp. Gravity 1.0012
Freeze Thaw Unlimited
Stability Full Range
Visocity Brookfield - 30 cps
77° F. Zahn 2 - 18sec
Odorless
Non-Toxic
Non-Flammable
Non-Corrosive
Long Shelf Life
USES
Extrusion Primer
Lamination
Printing Primer

APPLYING CONDITIONS

Room temperature 50 degrees F and up.
Solution temperature 33 degrees F to 170 degrees F.
Pick-Up Roller-smooth or gravure 200 line and up.
Squeeze Roller-hard rubber 80 to 90 durometer.
Accepting film surface should be corona treated for best results.
Primed surface must be thoroughly and absolutely dry before web is introduced to lamination, extrusion or printing.

Polaqua W7 as with all ADM Tronics' Primer systems is water based and formulated from ingredients found on FDA lists cleared for food packaging.

 
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