Polyurea is a material that allows you to quickly coat the flooring in shopping malls, road surfaces (with low temperatures in order to prevent ruining the asphalt), garages, parking lots, tanks and pools, with a strong resistance to foot traffic, abrasion, and which makes the substrates completely waterproof, flexible and free of joints and seams.
The different types of polyurea, compounded specially, allow for an excellent adhesion to various substrates such as cement, iron, aluminium, marbles, etc. and usually the presence of moisture on the substrate doesn’t particularly influence the adhesion.
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Characteristics of polyurea:
- completely waterproof
- acid-resistant
- resistant to hydrocarbons
- abrasion resistant
- vehicle accessible
- high mechanical strength
- high elasticity
- for some applications it can be “charged” with special additives to make it fireproof
- colored (for tanks, pools and flooring)
- thin layers of application
- various hardness and job characteristics
Main applications:
- waterproofing of containment basins
- paving of parking lots
- floors of shopping malls
- pool coating
- coatings of machinery tanks for chemical treatments
- industrial flooring
- relining of pipes and ducts
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Advantages of polyurea coatings include:
- Very fast setting (curing time typically 2 to 5 minutes) depending upon the formulation
- Excellent abrasion and scratch resistance
- Very stable resistance to weather and environmental conditions
- Very beneficial elongation characteristics
- Can be applied in variable temperature conditions, even in high humidity
- Stable heat resistance up to 130°C (266°F) and short term rating of 220°C (430°F)
- Coating thickness can be finely controlled
- Very effective bonding on correctly prepared surfaces of wood, cement, concrete and metals
- Excellent chemical resistance
- Feasibility of low viscosity, thus enabling mixing and spraying at desired temperatures
- Can be formulated for a very high tensile strength up to 4350 psi
Polyurea is an elastomer substance derived from step-growth polymerization, which involves combining a synthetic resin and isocyanate reactive materials. Thus, the reaction of an isocyanate part with a resin blend component part through the step growth process of polymerization produces polyurea.
Various formulations of resins and isocyanates can provide the desired setting time, moisture resistance, pigmentation, flame retarding properties and other unique features.