Spray polyurea is a rapid-curing liquid that transforms into a flexible, waterproof plastic membrane tough enough to resist chemical submersion, abrasion and impact. For over 25 years, SprayTight, Inc has protected commercial roofs, storage tanks, concrete structures and industrial equipment across Michigan with seamless polyurea coatings — the best solution for protecting surfaces, enhancing durability and ensuring longevity.
What Is Spray Polyurea?
Spray polyurea is a two-component elastomer that cures within seconds of application, turning into a tough, flexible plastic that is completely waterproof and able to resist chemical submersion. Depending on the substrate, it may be applied directly or over a primer, and top coats can be added when needed. Because it cures so quickly, service time drops dramatically — most projects are back in operation the same day.
Polyurea can even be applied to damp surfaces, and it comes in standard colors like black, tan, dark gray and light gray, plus custom and metallic colors and a variety of textures. It is largely used in industrial applications, but it delivers the same seamless protection on residential and commercial projects, from flat roofs to foundations.
Where Polyurea Wins
Flat & Commercial Roofs
A polyurea-coated roof protects your investment with a 30–40 year lifespan and shields your building from severe weather damage — huge money-saving opportunities over traditional roofing.
Storage Tanks
Watertight linings for steel and concrete tanks that stop rust, resist abrasion and survive impact damage from high winds. See our cold storage & tank services.
Secondary Containment
Chemical-resistant membranes for wastewater and containment areas that hold up under submersion in harsh, corrosive environments.
Concrete & Decking
Flexible coatings that bridge cracks, waterproof decks, parking structures and floors, and protect concrete from Michigan's freeze-thaw cycles.
Truck Beds & Equipment
The same abrasion-proof lining used in truck beds protects vehicles, trailers, material handling and industrial equipment from corrosion and wear.
Foundations & Marine
Below-grade foundation waterproofing, marine structures — even the underside of bridges, where polyurea shields steel and concrete from the elements.
Tank Linings That Protect Steel, Concrete — and Drinking Water
All tanks are made from either steel or concrete, and as soon as liquid goes in, trouble starts: steel begins to rust, while liquid inside concrete tanks freezes and thaws, causing the concrete to crack and crumble. A spray polyurea lining stops both. It seals steel against rust and keeps concrete tanks from cracking — and even if a concrete tank does crack, the watertight polyurea seal stops it from leaking.
Polyurea linings are a unidirectional membrane, meaning they can be molded around poles, pumps and other inner or outer structures. The material is available NSF approved and USDA acceptable to the ANSI/NSF-61 standard, so it doesn't leach substances in or out of the water — drinkable water stored in a polyurea-lined tank stays safe to drink.
Why Michigan Businesses Choose Polyurea
30–40 Year Lifespan
Correctly applied polyurea lasts for decades with little to no maintenance, even in the harshest conditions.
Rapid Cure
Fast-curing plastic coating means fast turnaround — less downtime for your facility and quick return to service.
Seamless Waterproofing
A monolithic, watertight membrane with no seams, laps or fasteners to fail.
Chemical & Abrasion Resistance
Resists chemical submersion, corrosion and abrasion in wastewater, industrial and marine environments.
Polyurea vs. Traditional Coatings
Spray Polyurea
- Cures in seconds — same-day return to service
- 30–40 year service life with little to no maintenance
- Seamless, flexible membrane that moves with the structure
- Resists chemical submersion, abrasion and impact
- Can be applied to damp surfaces, verticals and complex shapes
- Higher upfront cost that pays for itself in the long run
Traditional Paints & Sheet Goods
- Days of cure time and extended facility downtime
- Re-coating or replacement every few years
- Seams, laps and fasteners that become leak points
- Blisters, peels and cracks under chemicals and UV
- Requires dry substrates and simple geometry
- Lower sticker price, higher lifetime maintenance cost
Recent Coating & Lining Projects
Frequently Asked Questions
What does spray polyurea cost?
The overall cost varies with factors like roof or surface size, substrate condition, material thickness, choice of top coat, and building location. It's normally a little higher than a traditional coating — but it requires far less maintenance, meaning it pays for itself in the long run. Commercial clients receive a free on-site assessment and firm quote.
How long does spray polyurea last?
Spray polyurea can last for decades — 30 to 40 years — with little to no maintenance, even in harsh conditions, as long as it is applied correctly by an experienced crew.
Is polyurea safe for drinking water tanks?
Yes. Spray polyurea is available NSF approved and USDA acceptable to the ANSI/NSF-61 standard, meaning it doesn't leach substances in or out of the water. Water stored in a polyurea-lined tank remains safe to drink without any chemicals being added by the lining.
Does spray polyurea come in different colors?
Yes. Standard colors include black, tan, dark gray and light gray, and custom colors are available — from bright, bold primary colors to subtle earth tones. Metallic finishes are a popular option, and a variety of textures and patterns are available as well.
Can polyurea be used on bridges or damp surfaces?
Yes. Polyurea is water resistant, so we can spray the underside of a bridge to protect it from the elements and dramatically extend its life. Unlike most coatings, spray polyurea can even be applied to damp surfaces.
More Commercial Coating Services
Commercial Roof Coatings
Restore flat and metal roofs without a tear-off — leak-free for a fraction of replacement cost.
Industrial Polyurea
Seamless protective coatings for plants, warehouses, concrete, and equipment.
Secondary Containment
Polyurea-lined berms, pits, and tank coatings that help meet containment requirements.