This is predominantly epoxy and polyurethane based resins that render seamless, smooth/non-slip, self-smoothing, hygienic & anti-microbial and anti-static flooring systems that find many a use in carparks, commercial buildings and industrial factories & warehouses.
Protective coatings are generally acrylic, epoxy and polyurethane based resins that finds many applications in reinforced concrete and steel structures mainly for durability but also for aesthetics as well
Concrete repair is to restore/refurbish spalled and cracked concrete to maintain/extend its longevity by means of epoxy and cement based structural repair materials. Injection generally refers to high pressure concrete injection work to stop water leaks in basements, wet areas, roofs and water tanks by means of epoxy and polyurethane resins
Expansion joints could be either mechanical or chemical depending on the type of structures. For example, bridges/flyovers would require mechanical expansion joints made of moulded rubber/neoprene with steel reinforcement whereas buildings are good with polyurethane/ polysulphide joint sealant
Polyurea and polyurethane technology have become almost ubiquitous in countless industrial applications, capable of coating nearly any surface to provide robust protection against weathering and abrasion.