Protective powder & paint finishes

Welcome to NSP Coatings

We are one of the largest independent providers of protective coatings in the South East. For over 25 years, we have delivered high-quality finishes for metalwork and steel structures across Kent, London, Essex and beyond. Our services include powder coating, hot zinc spray, shot blasting, wet spray, intumescent paint, and a full quality control and transport service to make your life easier from start to finish.

We are known for our expertise in powder coating. Whether you need a smooth gloss finish or a tough textured coat, we have the right powder and process to match. We apply durable powder coatings in all RAL and BS colours, using top-quality materials for long-lasting results. Every part goes through a strict prep process to ensure the best possible finish. This includes shot blasting to clean the surface and create the right profile for coating.

If you need extra corrosion protection, especially for external or coastal projects, our hot zinc spray service is the ideal solution. By applying a zinc layer before the top coat, we create a barrier that protects the metal from rust and extends its life in harsh environments.

For parts that need a more traditional finish or where powder coating is not suitable, we offer expert wet spray services. Our team can apply a wide range of paints to suit decorative or practical needs. We also specialise in applying intumescent paint, which offers fire protection for structural steel and other metalwork. This is an important part of meeting building regulations, and our experienced team ensures it’s applied to the right thickness with all the required certification.

Our Ultra60 service offers the ultimate in long-term protection, backed by our 60-year guarantee. This top-tier coating system is built for durability, designed to perform in the most demanding environments. Every project under the Ultra60 specification includes SA3 shot blasting, hot zinc spray to the correct micron thickness and a premium powder coat finish applied to exact standards. It’s all documented through our QA system, giving you full traceability and confidence that the work will stand the test of time. This level of finish is ideal for architectural steel, coastal installations or structural projects where longevity and performance matter most. When you choose Ultra60, you’re choosing peace of mind for decades to come.

Every job that comes into NSP is tracked from enquiry to delivery using our custom-built CRM and ERP system. This means better communication, full visibility of your project and confidence that nothing gets missed. We also have a dedicated quality control team who check every stage of the process and make sure your work leaves the yard in perfect condition.

To support our customers across the region, we run our own transport fleet. We have two Euro 6 vehicles, including an 18-tonne lorry and a 3.5-tonne drop-side truck. This means we can collect and deliver your work without relying on third-party hauliers. It’s all part of the service and helps you keep things moving without delay.

At NSP Coatings, we handle everything under one roof. Whether you are a fabricator working on a large construction project or a designer looking for a perfect finish, we have the space, the people and the process to deliver. We are proud to be a trusted name in powder coating Kent, shot blasting Kent, and protective coatings across London and the South East. Our goal is simple. Get the job done once. Get it done right.

To speak with someone about your next project, give us a call or drop by the factory. Let’s talk about what NSP can do for you.