Services for Fabricators & Sheet Metal Companies

Your Finishing Department — Without the Overheads

Running a fabrication shop means your focus is on cutting, welding, bending, and assembling. The finishing side — powder coating, surface prep, corrosion protection — is a different operation entirely. Different equipment, different skill set, different space requirements.

That's where we come in. Coating Lab operates as the finishing arm for fabrication and sheet metal businesses across Auckland. You do what you do best — fabricate — and send the work to us for coating. No need to invest in spray booths, ovens, or blasting equipment. No need to manage powder inventory or train coating staff. We handle all of it.

What Fabricators Outsource to Us

We cover the full scope of finishing services that fabrication shops typically need:

• Powder coating — durable, high-quality finishes in a wide range of colours and textures. Suitable for steel, aluminium, and other metal substrates. We coat everything from small brackets and fixings through to large structural components.
• Sandblasting and surface preparation — proper surface prep is the foundation of any good coating job. We blast to remove mill scale, rust, old coatings, and contaminants so the new finish adheres properly and lasts.
• Zinc arc wire spraying — for components that need serious corrosion protection before a topcoat. Commonly specified for structural steel, marine applications, and anything exposed to harsh environments.
• Wet spray painting — when powder coating isn't the right fit, we offer wet spray options. Useful for certain substrates, oversized items, or specific finish requirements that call for liquid paint systems.

Batch Processing for Production Runs

Fabrication shops don't typically send through one part at a time. You're running production — a batch of 50 brackets, 200 clips, a full set of panels for a fit-out. We're set up to handle that.

Our workshop processes batch work efficiently, and we understand the importance of keeping your production line moving. When you've got a run of identical parts coming off the press or off the welding bench, we can schedule the coating work to fit your timeline. Talk to us about your volumes and we'll work out the best approach.

Consistent Finish Across Every Batch

When you're sending through a production run, the last thing you want is variation between parts. Colour differences, inconsistent texture, or patchy coverage will land back on your desk as a rework problem.

We maintain consistency through controlled pretreatment processes, calibrated application equipment, and proper curing. Every part in a batch gets the same treatment. We check colour and finish throughout production, not just at the end. If something's drifting, we catch it early.

Integration with Your Workflow

The best outsourced finishing relationship works like an extension of your own workshop. Here's how it typically runs:

• You fabricate — cutting, welding, folding, assembling. Get the parts to a stage where they're ready for coating.
• You send them to us — drop off at our Onehunga workshop, or we can arrange pickup. We'll discuss logistics when you get in touch.
• We prep and coat — blasting, pretreatment, coating, curing. The full finishing process handled under one roof.
• We return finished parts — ready to ship to your client or assemble on site. Delivery available — contact us to discuss.

It's straightforward. You don't need to manage multiple coating suppliers or chase different shops for different finishes. One call to us, everything sorted.

Folding and Sheet Metal Services

We also have in-house folding and sheet metal capability. If your job needs folded components — flashings, trims, cappings, or custom profiles — we can fold and coat in a single workflow. This can simplify your supply chain, particularly for jobs where the folded parts need to match the coated components you're already sending through.

Pickup and Delivery

We know that managing logistics on top of production is a hassle. Pickup and delivery is available for fabrication jobs across Auckland. Get in touch and we'll work out what makes sense for your volumes and schedule.

Frequently Asked Questions