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TECHNICAL DATA SHEET I SECTION 2.9
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POLYPRIME U
Two Component, High Solids,
Aromatic Polyurethane Primer

Product Description
Polyprime U is a two component, high solids, liquid applied Technical Data (Based on Draw Down Film)
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primer with unique penetrating characteristics.
Coverage Rate 1 gal/300 sqft
Features 0.14 l/sqm
• Fast Re-Coat Time 5 ± 1 mils
• High Solids Dry Film Thickness per 127 ± 25 microns
Coat
• Low Odor
• Low Viscosity
Mixing Ratio 1A:1B
Typical Uses
Pot Life at 75ºF (24ºC), 30-60 min
• Intercoat adhesion and re-coat primer for existing 50% RH
urethane systems
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• When combined with Polyglaze Hardener, Polyprime Specific Gravity,
U may be used as a quick drying concrete primer for Side-A 1.22 ± 0.1
Vehicular and Pedestrian Traffic Deck Coatings Side-B 0.98 ± 0.1
Total Solids by Weight, 97.8% ± 2%
Packaging ASTM D2369
2-Gallon Kit One 1 gallon (3.78 liters) can
of Side-A and One 1 gallon Total Solids by Volume, 98.8% ± 2%
(3.78 liter) can of Side-B ASTM D2697

10-Gallon Kit One 5 gallon (18.9 liter) pail Viscosity at 75°F (24°C) 500 ± 100 cps
of Side-A and One 5 gallon
(18.9 liter) pail of Side-B Volatile Organic
Compounds, 0.21 lb/gal
ASTM D2369-81 25 gm/liters

Color
Side-A: Black, Side-B: White
When used as a quick drying primer, mix Polyprime U at a
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Coverage mix ratio of:
The approximate coverage is 1 gallon/300 sqft (0.14 l/sqm)
or 300 sqft/gallon. Coverage rate will depend on surface 2-gallon (7.57 l) kit: mix Polyprime U Side-A and Side-B, then
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roughness and porosity. mix in 1/2 pint (23 ml) of Polyglaze Hardener.
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Surface Preparation 10-gallon (37.85 l) kit: mix Polyprime U Side-A and Side-B,
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All surfaces must be free of oil, grease, dirt and other then mix in 1 quart (95 ml) of Polyglaze Hardener.
contaminants. Refer to General Guidelines for complete Application
information.
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Polyprime U should be applied at the rate of 1 gallon (mixture
Mixing of Side-A & Side-B)/300 sqft (0.14 liters/sqm). Coverage rate
The volume mixing ratio is 1 part Side-A to 1 part Side-B will depend on surface roughness and porosity. It can be
(1A:1B). Do not mix in an up and down motion. applied using an airless sprayer, brush, or phenolic resin core
roller. Do not allow the material to puddle.
Polyprime U Side-A and Side-B should be thoroughly mixed
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individually prior to combining to ensure a homogeneous Allow Polyprime U to become tack free before applying the
material. Polyprime U must always be mixed with 1 part coating. Approximate tack free time is 2-4 hours at 75°F (24°C)
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Side-A and 1 part Side-B (1A:1B). The combined components and 50% relative humidity. If the primer has been allowed
should be thoroughly mixed using a mechanical mixer at to remain tack free for more than 12 hours, it is necessary
slow speed. to solvent wipe surface with VOC-compliant solvent and re-

POLYCOAT PRODUCTS TEL 562.802.8834 | FAX 562.921.7363 Section 2.9
info@polycoatusa.com | www.polycoatusa.com