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  • Overview
  • Specs
  • Coverage Rate
  • Cure Time
  • Chemical
  • Application

Polyurethane HD Aliphatic Polyurethane 2K Floor Coating

RainguardPro® Polyurethane HD Aliphatic Poly Urethane 2K is a two-component, high performance, zero-VOC, odorless, water-based, aliphatic polyurethane paint/coating. Polyurethane HD provides years of excellent protection against harsh weather conditions, UV exposure, corrosion, physical damage, and has elastomeric properties. Polyurethane HD acts as a breatheable elastomeric waterproofer and can be applied in low temperature conditions down to  40 °F.

This product may be sprayed, brushed, or roller applied. Polyurethane HD is unique in that it has no VOC’s due to its total water-based formulation. When fully cured, this product has good chemical acid resistance, UV protection, excellent water resistance, abrasion resistance, flexibility, and is totally environmentally safe.

Polyurethane HD Aliphatic Polyurethane is a two component product and is packaged in 32 oz, 1 gallon and 4 gallon kits.

It is available with 4 gloss level options; super matte (nearly flat), matte, satin and high gloss finish and in a non-yellowing clear or in a pre-tinted white.   Polyurethane HD has IsoFree Technology So when Part B Is mixed With Part A, The crosslink reaction makes the combined product free of any isocyanates.  Thereby the product is safe to apply for both the applicator and the environment with zero voc’s.

What comes in a kit?

Part A Part B Kit Makes*:
26 Fl. Oz. 1 Fl. Oz. 1 Quart
112 Fl. Oz. 4 Fl. Oz. 1 Gallon
448 Fl. Oz. 16 Fl. Oz. 4 Gallons

After mixing the components, may be reduced with water. Typical spray applications require a 5% to 10% reduction. Do not exceed 15%

Where is Polyurethane HD Aliphatic Urethane used?

  • Warehouses
  • Tile Floors and Walls (Glazed and Unglazed)
  • Food and Beverage Facilities
  • USDA Inspected Facilities*
  • Commercial Vehicles
  • Airports
  • Stadiums
  • Sound Walls
  • Direct-To-Metal (Must use primer first)
  • Warehouse Floors
  • Garage Floors

Why Polyurethane HD Coating?

  • Scratch Resistant
  • Great Chemical and acid resistance
  • MEK Double rub @50% solids Passed 2,000 Cycles Test
  • Non-yellowing & UV resistant topcoat
  • Apply Direct-to-metal* and concrete
  • Excellent as a protective floor coating, or topcoat applied over a primer epoxy, as a high-gloss, chemical/acid resistant topcoat for industrial concrete flooring applications
  • Breatheable elastomeric waterproofer
  • Zero VOC- SCAQMD Compliant
  • Choice of High Gloss, Satin, Matte or Super Matte (nearly flat) Finish
  • Comes in Clear or White Color
  • Excellent Adhesion
  • Use on wide range of surfaces including Concrete, Block, Brick, Wood, Painted Metal, Tile (glazed & unglazed)

*Do not use on bare ferrous metal. Only apply to ferrous metal that is properly prepped and primed to receive a water based coating.


Solids by Weight Clear 60% (+/-2%) Pigmented 66% (+/-2%)
Solids by Volume 50%
VOC 0 g/L (mixed)
Colors Clear and white
Recommended Film Thickness  3-4 mils wet, 1.5-2 mils dry (Do not apply over 5 mils wet)
Coverage per Gallon 250 – 400 sq’/gal @3-4 mils wet thickness
Packaging 32 oz kit, 1 gallon kit, 4 gallon kit
Mix Ratio 2.25:1 mix ratio by volume
Shelf Life 1 year in unopened container
Finish High gloss (>90 at 60 degrees @glossmeter)
Gloss Loss <10% ASTM D523
Color Loss <1.1% ASTM D2244
Humidity 1500+ hours ASTM D2244
Salt Spray 1500+ hours ASTM B117
Abrasion Resistance < 40 mg ASTM D4060
MEK Double rub @50% solids Passed 2,000 cycles
Flexibility Pass ASTM 2794
Adhesion Pass ASTM D2197
Odor None
 Hardness > 2H


Substrates Sq Ft/Gallon
Textured Surfaces Approx. 250 – 300
All Masonry Surfaces Approx. 300
Painted Surfaces Approx. 400
Wood Surfaces Approx. 300
Metal Approx. 400
Tile Approx. 350


Pot Life 3/4 to 1 hour
Tack Free (dry to touch) 4 hours
Recoat 4 – 8 hours
Full Cure 3 – 7 days


RainguardPro® Polyurethane HD provides excellent resistance to a wide range of chemicals and acids, including:

 Ammonium hydroxide
 Potassium hydroxide
 Sodium hydroxide
Sodium chloride
Trisodium phosphate
Ethyl Alcohol
Isopropyl alcohol
Methyl alcohol
Hyjet #3
Skydrol 500 A & B
Hydrochloric acid 10%
Phosporic acid 35%
Sulfuric acid 20%
Acetic acid 24%
Toluene & Xylene
Jet fuel – Butyl cellusolve
Acetone – Cellusolve acetate
MEK (Methyl ethyl ketone)
Beer – cola – milk
Mustard – bleach


PRODUCT STORAGE: The recommended storage temperature is approximately 22 °C (72 °F). Do not damage containers. Store in a dry place. Do not store for extended periods in direct sunlight. Protect containers from resin and moisture contamination.

SURFACE PREPARATION: Make sure all contamination such as dirt, oil, grease etc has been removed from surface that might impact adhesion.


  • Stir Part A for 2 minutes with Jiffy Mixer type drill mixer at slow speed (500 rpm) to fully disperse the product
  • To Catalyze product (get it ready to use) pour Part B into Part A slowly and mix for 2-3 minutes
  • Pour a portion of mixed Part A and B back into Part B can until full and mix well for 30 seconds, then pour back into the mixed Part A and B can.
  • Allow product to stand for 5 minutes before applying.  Loosely cover mixed product  DO NOT RESEAL MIXED PRODUCT!
  • Product may be reduced with clean water to achieve desired viscosity.  We recommend using distilled water
  • Typical spray applications require a 5% to 10% reduction with water.  Do NOT exceed 25%.
  • Do NOT reduce catalyzed product after 30 minutes
  • IMPORTANT:  Mark time to establish pot life from when you start mixing A and B.  Pot life is 3/4 to 1 hour.
  • Do NOT mix with other products or other containers of RainguardPro Polyurethane HD

Improper mixing may result in product failure. For best mixing results and proper blending of parts A and B, recommend a Jiffy Mixer style drill mixer. REDUCTION (OPTIONAL)  REDUCTION // CLEAR Pour the contents of Part B into Part A. After mixing the components well (as described below) for approximately two (2) minutes, it may be reduced with water up to twenty percent (20%). Typical spray applications require a 5% to 10% reduction. Do not exceed 20%. REDUCTION // WHITE Pour the contents of Part B into Part A. After mixing the components well (as described below) for approximately two (2) minutes, it may be reduced with water up to eight percent (8%).  Typical spray applications require a 5% to 8% reduction. Do not exceed 8%

What comes in a kit?

Part A Part B Kit Makes*:
24 Fl. Oz. 2 Fl. Oz. 1 Quart
112 Fl. Oz. 4 Fl. Oz. 1 Gallon
448 Fl. Oz. 16 Fl. Oz. 4 Gallons

*See instructions for dilution percentages

PRODUCT APPLICATION: IMPORTANT: Proper methods to protect from over spraying should be implemented. Atomized particles will adhere to most surfaces and are extremely difficult to remove.  Temperature and humidity directly affect pot life and dry time. Conditions should be between 40 – 95 °F (5 – 35 °C) and humidity should not exceed 80%.  Can apply using brush, roller or sprayer.

Smooth Surfaces RainguardPro® Polyurethane HD may be applied directly over most surfaces without primer. Apply a light coat at a thickness of 3 to 4 wet mils. Do not exceed 5 mils. Reduction may create optimal flow. Dry mils thickness is 1.5-2.  Ferrous metal surfaces require primer before application.  When rolling product, recommend 1/4″ nap lint free roller for smooth surfaces

Porous Surfaces Most porous surfaces should have a sealer or filler to adequately eliminate potential pinholes prior to applying RainguardPro® Polyurethane HD .

  • For unpainted porous surfaces, use Micro-seal Water Repellent/Sealer prior to application of RainguardPro® Polyurethane HD
  • Apply one coat of RainguardPro® Polyurethane HD (3-4 mils wet per coat) allowing 4 hours between coats or when coating is tack free (pressing thumb into surface and no thumbprint remains)
  • Any runs should be brushed our rolled out immediately before drying
  • When dry, thickness is 1.5 – 2 mils
  • When rolling product, recommend 3/4″ nap lint free roller cover for porous and textured surfaces

*For heavy duty applications such as warehouse floors with heavy forklift traffic, total DFT thickness should be 3-4 mils (2 coats)

RECOAT OR TOPCOATING: Multiple coats of this product are acceptable.  When recoating this product, it is advisable to apply the recoat before 24 hours passes. If the first coat has dried longer than 24-hours, abrade the surface to promote adhesion for the second coat.

CLEANUP: Clean up promptly with mild soap and water before product cures. Dispose of according to local, state and federal regulations.

LIMITED WARRANTY: 10 Year Warranty – Apply 1 coat at 2 mils DFT+.  Fill out warranty pre-application at

PERSONAL PROTECTION: RainguardPro® Polyurethane HD is a zero-VOC coating. The volatile to evaporate will be water. No special clothing or respirators are required. Due to its total water-based formulation, the hazard of flammability is removed.


  • RainguardPro® Polyurethane HD should be tested on all substrates before complete application
  • Do not apply in humidity above 80% or rain
  • Horizontal surfaces coated with RainguardPro® Polyurethane HD become slippery when wet recommend an anti-slip additive
  • Should not be applied in high wind, rain or when the ambient teperature is below 5 °C (40 °F).
  • Certain porous surfaces may require sealer or block filler to allow the RainguardPro® Polyurethane HD to create a more desirable aplpication and maintain the integrity of the surface.  Test patch should be applied before the final application
  • Do NOT overapply.  More is NOT better.  A heavier application can cause micro blistering and affect the finish
  • When using white color RainguardPro® Polyurethane HD over previously painted surface, test first to confirm it will provide the hide needed in a one or two coat application.  Lighter colors will be easier to cover in one coat.
  • Physical properties are typical values and not specifications.