Know before you buy – types, properties, and powder coating powder suppliers
Powder coating is not just the coating used to hot-up vehicles. It is a highly protective coating method that is used to protect substrates from corrosion, chemicals, weather, and physical damage while providing an attractive drip-and-sag-free finish. Powder coating is also a cost effective and environmentally friendly coating option; it produces little to no waste, emits almost zero VOCs, and powder coating powder overspray can be collected and recycled. From the Wimbledon Centre Court roof to office furniture and playground equipment, the protective and attractive properties of powder coating powders are everywhere.
Looking to buy powder coating powders in bulk for an industrial, commercial, or large-scale project? In this article we look at different types of powder coating powders and give you the information you need to buy the right one. We also look at where to buy powder coating powder and the brands and companies that sell them in the UK.
How powder coating powder effects & finishes affect the price
Most powder coating material suppliers will produce a range of “standard” colours, with the option to choose another RAL colour that they can produce for you. These options will be represented in their powder coat colour chart or their sample panels. Sample panels allow you to assess the colour in person, rather than on a screen. Powder coat colours can also be tailor-made for your specific needs, though not all companies provide this service. AkzoNobel’s Interpon Powder Coatings is one company that provides custom colours. The colour options will start with the basic solid colour standard, and then get more exciting (and more expensive) from there.
Powder coating comes in a range of special effect finishes which are not available in liquid paint. These special powders include:
- Gloss – A powder coating finish comes in levels of gloss from flat/matte (with no shine) to full gloss (which is the shiniest). Between these are satin and semigloss or medium gloss.
- Metallics – A metallic sheen or sparkle effect caused by the inclusion of metallic pigments like aluminium flake or mica, ranging from shimmer to glitter. They come in bonded and unbonded (which describes how the metal is incorporated). Unbonded is the cheaper but less consistent finish.
- Colour effects – These include translucent finishes, which add colour while also allowing the metal substrate to gleam through, and dormant powders. Dormants provide a bright candy finish through a two step process with a typically metallic base coat and a clear top coat. These are particularly used on bikes.
- Textures – These include sand (sandpaper appearance), hammer (like a hammered metal surface), wrinkle (commonly used on items like gym machines – rough yet smooth, with depth), and river vein (an almost wet look finish with a dimpled and crinkled effect).
£15-20 per kilogram is the average powder coating powder price, but of course this changes with brand and specialisations. As an example, AkzoNobel’s Interpon 100 epoxy powder in basic white retails at £475.00 per 25kg box, breaking down to £19 per kilogram. When you look to buy powder coating powder you quickly realize the more extreme the effect or outrageous the colour or texture, the more expensive it is. For a look at how powder coating powders prices translate to the finished item, visit our costs overview.
Metallics in general are more expensive due to the extra processes involved in making them, the special textures require extra thick film build or specialty application techniques which also increase the price. The more specialised the powder, the higher the price. Powders are commonly sold by the kilogram or pound, with the cost-per-kilo decreasing as the volume increases.
Choose the the right powder coating resin and properties
Like liquid paint, powder coating powder is available in a range of resin types from acrylic to polyurethane. Another important factor to understand is the curing process of the powder. In this respect powders can be divided into two broad categories: thermoset and thermoplastic powder coating. In a thermoset resin, the molecules form crosslinks as they cure. This permanently alters the chemical composition of the coating. Thermoplastic powder coating resins have longer chain molecules to begin with and do not form crosslinks. Consequently, they can be re-melted if exposed to high enough temperatures.
They are both applied through the usual powder coating methods, but thermoplastic powders are more flexible, where thermosetting powders are heat stable. Most powder coating powders are the latter. Below is a list of the main resin types and their applications. It is important to choose coating products based on the substrate, environment, and use that it is required for. For example, epoxy powder is not UV stable without extra stabilising elements, so it is not recommended for exterior applications. Below is a list of the main resin types and a few of their applications.
|Powder Coating Powder Type||Description||Uses||Product Example|
|ACRYLIC POWDER||A thermosetting resin with good chemical resistance.||Mainly used in the automotive industry for smooth, chip resistant clear coats.||PPG Enviracryl|
|EPOXY POWDER||A thermosetting, impact resistant, durable, corrosion resistant, chemical resistant, and highly adhesive powder. Not UV stable.||Mostly used in as a protective coating in interior applications and factory equipment. Fusion bonded epoxy powder coating is used to protect pipelines from corrosion.||Axalta Nap-Gard FBE Powder Coating and Teknos EP 8024|
|POLYESTER POWDER||The most common thermosetting resin type due to its flexibility, durability, mechanical resistance, chemical resistance, versatility and low cost. TGIC and TGIC-free formulations.||Used for exterior applications. There are also Super Durable Polyesters which offer extended colour and gloss lifespans.||Prismatic Powder Color Range and Sherwin Williams Powdura TGIC Polyester|
|HYBRID EPOXY POLYESTER POWDER||Toughness, chemical resistant, colour stable and highly decorative. It has better weatherability than pure epoxy, but decreased chemical and corrosion resistance.||Commonly used for office furniture, consumer products, retail/shopfitting and interior applications.||AkzoNobel Interpon 700|
|FLUOROPOLYMER POWDER||Thermoset fluoropolymer powder coating which has excellent weatherability, UV stability, and colour and gloss retention.||Typically used in exterior industrial and architectural applications (like PVDF coating) as they are the longest-lasting, best-performing outdoor powder coating option.||PPG Duranar and Axalta Alesta AR500|
|NYLON POWDER||Thermoplastic powder used where friction reduction, resistance to corrosion and chemicals, and a cosmetic finish are required.||Kids playground equipment, shopping carts and wire shelving use nylon coating, as well as applications in the healthcare industry.||AkzoNobel Interpon TP RTS|
|POLYURETHANE POWDER||A thermosetting powder with excellent corrosion resistance, UV stability, and durability, but more expensive than alternatives.||Used for exterior applications with a need for hardness and a lower film build, furniture, garage doors, lighting, etc.||AkzoNobel Interpon 200 RTS and PPG Envirocron Polyurethane|
|SILICONE POWDER||A heat resistant powder coating for temperatures up to 1000°F.||For high heat applications such as engines and exhaust systems, stoves, ovens, lighting and others.||AkzoNobel Interpon HT 450 RTS|
The top powder coating powder suppliers in the UK
If you are looking to buy powder coating powder for your business, or have a business that requires powder coating powders for specialty applications, there are several big companies operating in the UK who provide powders for your needs. These top powder coating powder suppliers include AkzoNobel, PPG, Valspar, Teknos and Axalta, just to name a few. Below is a table outlining a few of the brands available on the British market. For more information on powder manufacturers in the UK, take a look at our article dedicated to the topic.
We often get the question “where to find powder coating paint suppliers near me?”. Below are some of the companies in the UK. If you are looking to buy powder coating powder, we are here to help! We will connect you with one of our coating partners to provide you with the best coating for your project. The quotation service is free, and our experts will help you determine the right coating. Simply use the “Request a Quote” button beneath this article and fill out the contact form so we can get you connected with the best powder coating powder suppliers in the UK.
|Powder manufacturer||Location in the UK||powder coating powder brand|
|AkzoNobel Powder Coatings Ltd||Oldbury Road, Smethwick, West Midlands, B66 1NJ||Interpon and Resicoat|
|Axalta Powder Coatings UK||Whessoe Road, Darlington DL3 0XH||Alesta, Abcite, and Nap-Gard|
|PPG Industries (UK) Ltd||Needham Road, Stowmarket, Suffolk, IP14 2AD||Envirocron, Enviracryl, Duranar, Coraflon and Silversan|
|Valspar Powder Coatings Ltd (Inver)||Goodlass Rd, Liverpool L24 9HJ||Greenbar, Pipeclad and Valde|
|Teknos (UK) Limited||Heath Farm Swerford, Banbury Rd, Chipping Norton OX7 4BN||Infralit|