Quality Trenchless Pipe Rehabilitation Experts

Polyurea- Advantages for Commercial and Industrial Coating Application`s

What is Polyurea? Technically speaking polyurea is a 100% solids, plural component spray applied elastomer that is fast curing with exceptional physical properties such as flexibility, durability, and chemical resistance--similar yet superior to most polyurethanes. Polyureas are the best choice for harsher environments which may be encountered when working in high impact/stressful applications where optimum performance for long term durability is required.

Surface hardness usually described as Durometer (Shore A/D scale). The higher the Durometer number the harder the surface. Typically, a polyurethane used for applications as a pickup bed-liner would have Durometer range of 70 -75 Shore A. We have engineered several polyurea formulations ranging from 40-45 Shore A to 90-95 Shore A. Applied M-25 polyurea has a Shore A of 90-95 and is intended for demanding situations encountered in commercial and industrial applications. 

SIPP: Sprayed-in-Place Piping - Trenchless Technology is reconditioning underground water supply/wastewater pipe

Moisture insensitivity/moisture barrier is a major advantage using polyurea which combine properties for rapid curing, imperviousness to ambient humidity/slight moisture in the substrate surfaces. Polyurethanes on the other hand, are very sensitive to both humidity and moisture and will react by giving off carbon dioxide gas causing foaming and pin holing leading to premature coating failure. Polyureas are resilient to water and have low permeability, which are ideal for moisture barrier applications.

Temperature tolerances are excellent with polyurea sprays which allow for fast cure times even at temperature extremes of 0ºF up to +250º-300˚F. Long term exposure may have an effect on performance and should be first tested. Polyureas have the advantage of having higher heat resistance than comparable formulated polyurethane. Polyureas reactivity is typically fast (3-5 seconds) and cures well on cold surfaces which would be well suited for extreme plant environments.

Environmentally polyureas offer no VOC (Volatile Organic Compounds) emissions with little to no odor making them both compliant with the strictest VOC and Environmental Regulations.  
Adhesion using polyurea demonstrate excellent adhesion characteristics, however, we recommend some surface preparation and/or the application of a primer for best adhesion.

ADVANTAGES OF POLYUREA COATINGS - Aromatic Spray-on polyureas

Polyurea coatings have exceptional physical properties such as high durability, moisture insensitivity, temperature tolerance, and resistance to salt spray conditions

1. Higher heat temperature tolerances (-65ºF to 350ºF)
2. No VOC’s for compliance to emission regulations
3. Excellent adhesion characteristics to most substrates. Primers have been developed to enhance adhesion on hard to stick surfaces
4. Fast cure time after application (in seconds)
5. Non-marring coatings for Class A surfaces
6. Polyureas are engineered to have strength with flexibility (up to 800% elongation) unlike other coatings which may break with any movement/vibration
7. Damaged coating surfaces are fixable rather than requiring complete and costly recoating through our patch kit technology we developed for the Nuclear Industry.
8. Polyurea coatings have good heat transfer properties (insulation) which mean that coated surfaces maintain a cooler surface by several degrees than uncoated surfaces
9. Coating thickness is determined by customer needs
10. Different coating textures are available from smooth to a stipple or orange peel as desired for improved functionality such as anti-skid or appearance
11. High chemical resistance to most water/petroleum based products
12. Our polyureas are developed to maintain superior long term UV protection using our UV package additives for extended color and gloss retention over a long period of time
13. RAL matching may be available. Standard colors offered are Light Gray, Dark Gray, Black, Med. Green, Medium Blue, Tan and Safety Orange
14. NSF 61 Approved for Drinking water pipe.
15. Polyurea coatings can hold high pressures 
16. Polyurea coatings can repair cracks in potable water pipes 
17. Polyurea coatings, unlike many coatings retain most of their physical properties over extended time periods as compared to epoxy, plastisol dips and powder coatings which become brittle or fade within a couple years or less if subject to vibration/trauma..

Now Applied pipeline services, is providing to the UAE, Oman and KSA (Saudi Arabia) a unique trenchless pipe repair technology using polyurea, where our teams are offering in situ trenchless polyurea pipe coating for potable water pipe repair. For your inquiry contact us today!!!