1. Follow your equipment Pressure Relief Procedure before cleaning, checking, or servicing equipment. Disconnect hoses from the gun.
2. We begin by air purging all of the material from the Resin side of the system.

1. Close the transfer pump air line needle valve, disconnect the airline from the Resin transfer pump and remove the pump from the material drum. If possible lift the inlet ball to drain the material from the transfer pump. Wipe the exterior of the pump with a clean rag.

1. Insert the Resin transfer pump into an empty pail and secure to prevent tipping. Reconnect the air line.

1. Utilizing just the transfer pump gently open the transfer pump air line needle valve and purge the chemical back into the drum that it came from. (This will purge all the Resin from the system and fill the system with air allowing us to save most of the material in the system). Once all material has been purged from the system close the transfer pump air line needle valve and disconnect the airline on the Resin transfer pump.

Do not use machines main pumps and ensure primary heaters and hose heaters are off.

1. We now need to repeat this procedure (Steps 3 - 5) to purge all of the material from the Iso side.

1. Now that the fluid has been air purged from the system we can start the cleaning procedure. Fill two separate 5-gallon pails with 2-4 gallons of All-Solve (1 pail for the (A) Iso side and 1 pail for the (B) Poly side). All-Solve is especially useful for cleaning the proportioner, transfer pumps and hoses, as it quickly and thoroughly cleans polyols, crystallized isocyanates, and other urethane intermediates.

On average a proportioner requires 1 to 1.5 gallons of fluid per side (A Iso and B Poly) to flush the transfer pump, proportioner and 50 feet of hose. Each additional 50-foot length of hose will require another 0.5 to 0.75 gallons of fluid.

1. Insert each transfer pump into separate 5-gallon pails of All-Solve and secure to prevent tipping the pails. Reconnect the airline. Slowly open the transfer pump air line needle valve and fill the system with All-Solve. Purge the first 1/2 gallon of material per side into a waste pail. Safely dispose of the waste materials by federal, state/provincial and local regulations.

1. Once the proportioner has been filled with All-Solve, you can turn on the proportioner and set the first and hose heaters to 150° F and turn on the heaters (Do not attempt to pressurize the system).

1. Securely sss the material hose ends to their respective pails of All-Solve, use a filter/screen under the chemical hose ends if you suspect debris to be in the machine, open the transfer pump air line needle valve and allow the All-Solve to recirculate throughout the system for 2-4 hours or longer depending how much scale has built up on the inside of the system.

1. Once the cleaning procedure has finished, we will need to air purge the All-Solve from the system.

1. Insert the transfer pumps into an empty pail and secure to prevent tipping. Reconnect the air line.

1. Using just the transfer pump slowly open the transfer pump air line needle valve and purge the All-Solve back into the 5-gallon pail it came from (the All-Solve can be saved and used again to flush the system at a later date). Once all the All-Solve has been purged from the system close the transfer pump air line needle valve and disconnect the airline from the transfer pump.

CHOOSE AN OPTION BELOW DEPENDING ON WHAT YOU ARE DOING
GO BACK TO SPRAYING

1. Wipe the exterior of the transfer pumps with a clean rag. Insert the transfer pumps into their respective material drums and secure. Reconnect the airlines.

1. Slowly open the transfer pump air line needle valve and fill the system with Iso and Resin. Purge the first 1/2 gallon of material per side into a waste pail. Safely dispose of the waste materials by federal, state/provincial and local regulations.

1. Re-attach the spray gun to the hoses, turn on the proportioner, set the temperatures and pressures according to the material specifications, and spray onto a piece of cardboard or another disposable surface to ensure material is spraying and curing correctly. You are now ready to spray.

PUT THE PROPORTIONER INTO STORAGE

1. Fill two 5 gallon pails with 2-4 gallons of Pump Fluid, a highly refined, special purpose lubricant that can be used for equipment flushing, equipment storage and throat seal lube.

1. Wipe the exterior of the transfer pumps with a clean rag. Insert the transfer pumps into separate 5-gallon pails of Pump Fluid and secure to prevent tipping the pail. Reconnect the airline.

1. Slowly open the transfer pump air line needle valve and fill the system with Pump Fluid. Purge the first 1/2 gallon of material per side into a waste pail. Safely dispose of the waste materials by federal, state/provincial and local regulations.

1. Securely fasten the material hose ends to their respective pails of Pump Fluid, open the transfer pump air line needle valve and allow the Pump Fluid to recirculate through the system for 15 minutes.

Do not use machines main pumps and ensure primary heaters and hose heaters are off.

1. Re-attach the spray gun to the hoses, turn the proportioner on and increase pressure to 1000 psi. Trigger spray gun until the pump is in the park/retract position and pressure falls below 500 psi. Ensure all valves are closed, and power is off. Remove and clean spray gun. The proportioner can now be safely stored.

Polyurea derives from the Polyurethane family and is remarkably versatile; known for its excellent adhesion, abrasion resistance and ability to fight corrosive material, as well as it powerful long-lasting coating, waterproofing capabilities and an amazingly fast cure time. Polyurea is the leading solution in protective coatings.

Polyurea is an excellent coating, robust enough for heavy duty use in commercial applications. It is very tough and unyielding to most chemicals. We spray 100% Polyurea with high pressure, high-temperature system. It hardens in fewer than 10 seconds so you get an even, fine grain factory polished look. We can also add extra character for a traction-enhanced exterior to high traffic areas, walkways, bumpers, stairs, and any other places that may need to be skid proof.

Polyurea is remarkably durable & resistant to chemicals, it is ideal for large duty work! Whether you are looking to guard against rust & corrosion, need a non-skid coating or want a tough, durable emergency coating, Polyurea is more than likely the answer for you.

    Ramps, large sized coolers and freezers, restaurant kitchens and grocery stores, decks, porches and balconies, commercial pools, concrete foundations, aquariums, and ponds.
    Street sweepers, utility trucks, sidestep vans, horse trailers & freight liners, tankers, RV trailers
    Ambulances, armored panels, spray rigs, interior cab floorboards, boat floors and trailers, garbage trucks and transport containers.

The possibilities are limitless. Our specialists can advise the best coating system based on your requirements.
Polyurea comes in basic black or we can custom match any color. Contact us now to discuss how Polyurea Coatings can enhance your ensuing project!

The latest coating technology is polyurea. Formed during the late 1980s for the automotive trade, this material is presently used in a wide array of purposes. Use of this material as technical waterproofing has skyrocketed in the business in the past decade due to its fast-curing, corrosion- and abrasion-resistant qualities.

Hank S., director of market development and training at ArmorThane Corporation, explains, "Polyurea was invented in the early 1980s when a less moisture-sensitive class of polyurethane was wanted.  By replacing the hydroxyl group in the urethane with an amine group, a product we now call polyurea was created.  It has significantly less sensitivity to moisture than different urethane-based coatings."
Of the two most common kinds of polyureas, aromatic polyureas are by far the most common. Phelan calls them "the workhorse of the business offering a wide variety of mechanical characteristics for various applications." In fact, about the only aspect, these coatings do not provide is UV stability.
A second formulation, aliphatic polyureas, use complex chemistry to produce UV stability.  This added benefit begins at a price as aliphatic polyureas are typical twice the rate of aromatic polyureas.

Benefits Of Polyurea
One reason polyurea coatings are exploding in popularity is the wide variety of positive attributes they exhibit.

The industry website, polyurea.com, opens with a bold statement. "Virtually no other coating can compare to polyurea when it comes to attainable physical parts," it reads. "Polyureas can be formed to achieve a tremendous spectrum of resources from high elongation to superior tensile force to hard or soft, all based on how the materials is formed and correctly applied."
It adheres tenaciously to a modification of different substrates (concrete, metals, wood and more) without primers and in a wide range of heat and moisture environments.

Conceivably its most significant benefit is that it sets up remarkably quickly, allowing the applicator to build up a finished thickness in a single pass. This allows the owner to put the plant back in service several times quicker than conventional coatings, accumulating days or even weeks of revenue failed to fluff-time.
Phelan says, "Thicknesses can range from 20 mils to 500 mils in one form.  Cure presents range from instantaneous to two minutes allowing for a quick return to service."
As fast curing, thick film coating, polyurea is a logical solution when seamless, durable membranes remain needed for waterproofing.  Additional characteristics such as slip-resistant additives and surface textures can also be incorporated. It can be distorted and is even available in a potable-water-approved formulation.
With such a wide range of performance characteristics, the scope of suitable applications is also large. Tank linings, secondary containment, and bridge coatings are some of the most common uses, but the application possibilities are endless.

The technology has been employed successfully on pedestrian decks and parking garages, tanks, tunnels, rain tanks, slurry pits, and flooring. It can also be developed as a joint filler/caulk.
Polyurea was originally employed as a truck bed liner to form a permanent watertight layer. The same old and abrasive-resistant characteristics that make it perfect for lining truck beds and dump trucks make it attractive for complex waterproofing projects.

The containers at wastewater processing plants, for example, are exposed to erosion, and massive amounts of hydrogen sulfide gas when the contents are screened, mixed and dewatered.
Polyurea coatings can supply the abrasion, chemical, and impact resistance needed, and restore the plant to operating condition faster than many other competing systems.


Drawbacks
Polyurea does have a few drawbacks. The equipment required to utilize polyurea coatings can be expensive for one. It can range from $5,000 to $50,000 or more.  Fully equipped mobile platforms can cost upwards of $100,000.

The chemical also costs more than some alternatives. The initial costs are greater than epoxies, but since polyurea coatings can last three to five times longer, it becomes considerably more cost-effective over the lifetime of the surface.

As with any waterproofing substance, it can collapse if applied inappropriately. Surface preparation —usually sandblasting or priming—is crucial for a successful application.  Most failed polyurea coating projects have little to do with the polyurea itself, but rather, inadequate or poorly implemented exterior preparation.

Installation
Most polyureas used for waterproofing are spray-applied with plural component spray equipment.
It's typically transmitted as a two-part operation, with the amine resin blend and isocyanate material supplied in 55-gallon drum sets. Once in use on the project site, they are transported from 55-gallon drums to separate containers in the spray machine where they are cooked to the appropriate temperature (140°F-160°F). The device then delivers the isocyanate and polyol resin through heated lines to the spray gun in a precise ratio (usually 1:1).

Polyurea has a set time that is estimated in seconds, so it's crucial that the chemicals don't mix until the instant before they leave the gun. Otherwise, the compound will set and harden inside of the spray gun.
Several companies sell mobile spray rigs that include all of the tools and equipment needed, mounted on either a trailer or truck bed.