Friday, July 7, 2023

What type of protective coating do i need?


Protective coatings are a vital part of industrial and commercial operations, protecting materials from corrosion, UV radiation, abrasion, chemical attack and other environmental factors. Polyurea is one of the most recent advances in protective coating technology, delivering superior performance over traditional polyurethane coatings. In this article, we’ll take a look at some of the different types of protective coatings available, including polyurea, and explore why it has become such an attractive option for many industries.

Traditional Protective Coatings

The most common type of protective coating used today is an epoxy-based paint or coating. Epoxy is a two-part resin-based material that provides a tough, durable finish that resists corrosion and abrasion. It’s widely used in all kinds of industries as it can be tailored to suit specific application requirements. However, epoxy is not the only option – there are several other types of protective coatings available on the market today.

One of these is polyester. Unlike epoxy, which is typically applied with a brush or roller, polyester is typically sprayed on to surfaces using specialized equipment. Polyester offers excellent resistance to both corrosion and abrasion and is often used in marine environments because it can resist salt water corrosion very well. However, it doesn’t have the same level of flexibility as epoxy so may crack or flake off over time if subjected to movement or vibrations.

Another popular choice for many industries is polyurethane (PU). PU coatings offer superior resistance to chemicals and temperature extremes than epoxies and provide excellent protection against weathering due to its ability to withstand UV radiation without significant degradation over time. PU also forms strong adhesion bonds with many substrates making it ideal for use on metal surfaces where using screws or rivets would be difficult or impossible.

Polyurea Coatings

More recently however there has been an increased interest in one particular type of protective coating: polyurea (PUA). PUA is a single-component system made up of two components; an amine hardener and an aliphatic diisocyanate liquid resin blended together into one product. This combination creates a highly resistant material with superior chemical resistance compared to other traditional protective coatings such as epoxy and PU due to its high crosslinking density which binds together tightly even when subjected to extreme temperatures or harsh conditions such as saltwater immersion or chemical exposure. One main advantage that PUA has compared to traditional systems like epoxy and PU is its cure time; while traditional systems can take days to fully cure at room temperature PUA cures within seconds when heated up so it can be applied much faster making it more cost effective too!

PUA offers numerous advantages over traditional systems including superior adhesion even in wet conditions; extremely low water absorption rate; heat resistance up to 200°C; good mechanical properties; excellent chemical resistance; electrical insulation properties; flexibility allowing for easier application on contoured surfaces; fast curing times; easy application with no need for specialised equipment such as spray guns etc.; no VOCs (volatile organic compounds) so safe for indoor applications; low shrinkage at cure meaning less sanding required during the finishing process etc.. The list goes on! All these benefits mean that PUA has become increasingly popular amongst industries ranging from construction right through to military defence forces who require durable protection from harsh elements but also need flexibility when dealing with surfaces that may move due to vibration or shock exposure during operation.

In conclusion, when looking at different types of protective coatings available today there really aren't any better options than those made from polyurea (PUA). By offering superior protection against extreme temperatures/conditions along with outstanding durability combined with speedier curing times all delivered at competitive prices makes this type of coating ideal for anyone wanting reliable protection without breaking their budget!



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