SOLIDS
100%
SHOP / EPOXY / CROWN POLYMER 320 GENERAL PURPOSE EPOXY
● IN STOCKCrown Polymer 320 CrownShield™ is a two-component, 100% solids general purpose epoxy that works as a primer, build coat, or slurry/mortar binder for broadcast and troweled systems. Low viscosity and low odor, it lays down a tough, sealed foundation for warehouses, commercial kitchens, hospitals, labs, aircraft hangars, and showrooms — USDA, FDA, and FSMA compliant, and VOC compliant in every US state and Canadian province. Pair it with a UV-stable polyaspartic or urethane topcoat for color stability and chemical and abrasion resistance. Ships as a 3 gal kit in your choice of 16 colors.
Crown Polymer Epoxy · SKU CP-320
Crown Polymer 320 General Purpose Epoxy
100% solids two-part epoxy. 3 gal kit. Primer, build coat, or topcoat. 16 colors.
CURE
20m work time
WALK ON
24h
COVERAGE
~480 SF (3 gal as topcoat)/kit
Contractor program
Apply for wholesale pricing on every product →PACK SIZE
COLORS
§ 01
Technical
Data
REV 03 · APR 2026
Download TDS ←
For most homeowners the TDS PDF is the simplest read. The table to the right is the full lab data for contractors and inspectors.
Show full property table
PROPERTY
VALUE
UNIT / METHOD
Type
Two-component 100% solids general purpose epoxy
Solids by volume
100%
Mix ratio
2 : 1
A : B by volume
Work time @ 75°F
20 minutes
Dry time @ 75°F
5-12 hours
Recoat window @ 75°F
12-24 hours
Return to service
24 hours
Full chemical cure
7 days
Coverage per kit
~480 SF
3 gal as topcoat
Coverage — primer
200 ft²/gal @ 8 mil
Coverage — build coat
100 ft²/gal @ 16 mil
Coverage — topcoat
160 ft²/gal @ 10 mil
Tensile strength
2,500 PSI · ASTM D638
Elongation
20% · ASTM D638
Shore D hardness
67-72 · ASTM D2240
Adhesion to concrete
>400 PSI · ASTM D7234
Water absorption
0.1% · ASTM D570
Application temp
50-90°F
VOC
VOC compliant — all US states & Canada
Compliance
USDA · FDA · FSMA · LEED
Shelf life (sealed)
12 months
Kit size
3 gal
Available colors
16
12 standard + 4 on request
Origin
Crown Polymers — Made in the USA
§ 02 · APPLICATION
Field Procedure
01
Prep Substrate
Diamond grind to CSP #2-#4 (ICRI 310.2R). Concrete must be structurally sound (≥3,500 psi), pH 9-12, and under 3 lb MVT / 80% RH — prime with a moisture barrier first if higher.
02
Mix Components
Pre-mix A and B separately, then combine 2A:1B by volume in a clean pail and power-mix 2-3 minutes, scraping the sides. Don't mix more than you can place in 20 minutes.
03
Apply
Cut in edges with a chip brush, pour a 6-8" band, gauge with an 8-12 or 15-20 mil notched squeegee at the rate for your coat, then backroll with a 3/8" nap roller wearing spike shoes. Keep a wet edge.
04
Cure & Topcoat
Dry 5-12 h @ 75°F; recoat 12-24 h. Light traffic 24 h, heavy 48 h, equipment 72 h, full cure 7 days. Topcoat with a polyaspartic or urethane for UV and chemical resistance.
★ READ UP BEFORE YOU POUR
Related
Knowledge Center
Application guides, prep checklists, and gotcha notes from the field — paired with this product so you know what you're getting into before the kit ships.
PREP · DO THIS FIRST★ START HERE
★ SURFACE PREP
How to Prep Your Concrete for Epoxy Flooring
The most important step of any floor coating project. Learn how to clean, profile, and test your concrete so your epoxy or polyaspartic actually sticks — and stays.
COVERAGE MATH★ CALCULATOR
★ PLANNING
How Much Product Do I Need for My Job?
Simple math for calculating epoxy and polyaspartic coverage. Square footage, mil thickness, waste factor, and how many kits to order for your garage, basement, or shop.
