Independently Owned
Powder Coating

Powder Coating

NSP Coatings Ltd operate both track and box oven facilities offering a range of coatings including polyester, epoxy polyester and specialist coatings for industry across the South East of England. The page below details the scope of NSP's powder coating services.

We have been operating for over eleven years and with many more years experience between our staff working with steel, aluminium and galvanised.

With a lot of our work in gates, railings and stair cases, unless otherwise stated we always Shot blast, Zinc powder prime coat then polyester Powder coat finish to give the best robust and cosmetic finish.

We are currently carrying out work using a three-coat system once shot blasted we then apply Zinc primer then a build coat primer and finally the RAL polyester Powder coat finish.

Also using “warm to the touch” coating for the new handrail regulations, Plascoat PPA571 Polymer Alloy coating to 300 microns to cover handrails and balustrade.

At NSP we can cater for your job whether it be a small one off item to large on going work requiring specified systems.

Powder coat systems we also use: Akzo Nobel Extra Life up to 15 years

Track Oven

We operate a large track oven which has an 8m long x 2.8 high x 2.5 wide box oven with four 25 metre manual tracks, ideal for large awkward items, sheet metal, and heavy work as well as higher volume jobs such as brackets, machined components and castings. Oven is Gas fired up to 220oC with temperature control for long bakes.

Overall track capacity 1.5 tonne

Polyester Coatings

We carry out polyester powder coating in a wide range of colours, thicknesses and textures to customer specification. Polyester coatings are suited to indoor and outdoor use and possess high resistance to weathering as well as elevated temperatures. All polyester powder coatings are applied over a pretreated surface which ensures a tough and flexible finish resistant to cracking and flaking and have a thickness of 140-250µm including the Akzo Nobel zinc rich primer and depending on the specification required.

Finishes available include:
  • Hammer
  • Leatherettes
  • Textures
  • Wrinkle
  • Any degree of matt through to full gloss
Coatings are also available in the following specifications:
  • Low Cure
  • Anti-Gassing
  • Architectural Grade

Epoxy Polyester Coatings

Epoxy polyester powder coatings provide a high performance finish with good chemical resistance and colour stability. Epoxy polyester is designed for indoor use in factory and process environments or applications subject to enhanced corrosion resistance. Epoxy polyester is easy to apply and results in a uniform even finish with a thickness of 30-70µm.

Finishes available include:
  • Hammer
  • Leatherettes
  • Textures
  • Metallic
  • Clear Lacquer
  • Antique
  • Any degree of matt through to full gloss
Coatings are also available in the following specifications:
  • Low Cure
  • Anti-Gassing

Epoxy Coatings

We carry out epoxy powder coating in a wide range of colours, thicknesses and textures to customer specification. Epoxy coatings are suited to indoor applications and when applied over a pretreated surface ensures a tough and chemical resistant finish with a dry film thickness of 50-70µm.

Finishes available include:
  • Leatherettes
  • Textures
  • Any degree of matt through to full gloss
Coatings are also available in the following specifications:
  • Low Cure
  • Anti-Gassing

Certified Cromadex Extra Life Applicators

We are certified Cromadex Extra Life applicators of C3 classification coatings which are garanteed for up to 15 years. The Extra Life system has been developed to protect against a wide range of environments, from the interiors of heated buildings to much more aggressive external situations, such as industrial or coastal areas. Our certification, which can be seen to the right covers the following:



Anti-Graffiti Powder Coating

We offer a clear anti-graffiti powder coating which when combined with a suitable cleaning technology allows the removal of graffiti without altering the original surface finish. The coating provides a 50-70µm dry film finish. The system is resistant to many different kinds of marker pens and aerosols, meets London Underground anti-graffiti requirements and offers a hard wearing surface finish.

Handrail Regulations

To satisfy part M1 & M2 of the UK's Building Regulations, Access to and Use of Buildings, which requires that new handrails need to be "slip resistant and not cold to the touch" we now offer a thermoplastic polymer alloy coating. The coating is available in a wide range of colours and finishes with a dry film thickness of 150-350µm (750µm flock spray). The coating which is based on an alloy of acid modified polyolefins (halogen free) has been specifically designed to provide a long lasting, tough coating for exterior applications on mild steel, galvanised steel and aluminium. The coating is resistant to stress cracking, adverse weather conditions, detergents, salt spray and typical airborne pollutants. The coating maintains excellent adhesion to the metal substrate without the need for a separate primer and provides a good degree of electrical insulation, abrasion and impact resistance.

Typical applications include fence posts, fencing panels, sign posts, street furniture, balustrading, stadium seating, pipes including potable water, cable tray, ducting, garden furniture, gutter brackets, battery boxes, hand rails, fan guards and wirework.

We use PPA571 from Plascoat. Hot zinc spray can be applied before to increase corrosion resistance.

Factor Standard Result
Salt Spray

ISO 7253

Aluminium - Unscribed

Aluminium - Scribed

Steel - Unscribed

Steel - Scribed

Results after 1000 hours

No loss of adhesion

No loss of adhesion

No loss of adhesion

Loss of adhesion less than 10mm from scribe. Under film corrosion 2-3mm

Chemical Resistance Dilute Acids 60°C

Dilute Alkali 60°C

Salts (except peroxides) 60°C




PSL, TM 19

Corrosion Resistant Coatings

Corrosion Resistant CoatingsWe offer a specialist zinc rich powder coating as a primer for high level corrosive environments and applications where an extended life expectancy of the surface coating is required. The specialist powder coating system offers upto 16 years performance protection in most types of light industrial applications, urban & industrial environments with moderate sulphur dioxide pollution, high humidity and areas of low salinity and is tested against the ISO12944: 1998 standard for the Corrosion Protection of Steel Structures by Protective Paint Systems.


Below is an example of our work:


All coatings can be applied to specific thicknesses as detailed in the table below:


Colour Matching

We offer a colour matching surface based on existing paint samples for RAL and BS4800 colour sets.



High Quality Track Line Metal Finishing

Aluminium & Steel Hot Zinc Spraying

Steel Grit and Shot Abrasive Blasting
© NSP Coatings Ltd 2019
E: T: 01474 363 719
NSP Coatings Ltd - Norfolk Road - Gravesend - Kent - DA12 2PS - UK
Tel: 01474 363 719 - E-mail: -

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