Industrial Powder Coating Services in London, Ontario
Blast, Coat, and Verify. All Under One Roof.
Most coating shops are built around a conveyor line. If your part is too big, too heavy, too complex, or too rusty, they can't help you.
That's where we start.
NASCO is a batch powder coating shop in London, Ontario. Since 1990, we've handled the fabrications, machine frames, and problem parts that production shops turn away. Every part is abrasive blasted, coated, and cured in the same controlled facility, and film thickness is measured and verified on every job.
If your coating needs to perform for years instead of months, this page explains how we make that happen.
Why In-House Blasting Changes the Outcome
Industry research is consistent on this: 75-80% of premature coating failures trace back to surface preparation, not the powder itself. No coating can compensate for a poorly prepared surface.
Most powder coaters outsource blasting or skip it for a quick chemical wipe. We don't.
Every part we coat is abrasive blasted in our indoor controlled booth using 120-grit garnet, creating the anchor profile your coating system specifies. The part moves directly from blast to coating without leaving our building. No transport between shops. No flash rust. No recontamination of a clean surface.
The surface that gets blasted is the surface that gets coated. That single fact is responsible for more coating longevity than any powder upgrade you can buy.
Learn more about our abrasive blasting services →
We Measure. Most Shops Estimate.
Ask your current coater for the dry film thickness readings on your last job. If the answer is a blank look, you're trusting their eyeball.
At NASCO, every job is verified with a PosiTector 6000 dry film thickness gauge before it ships. For critical and tight-spec work, we also measure surface profile (PosiTector SPG) and monitor dew point conditions (PosiTector DPM) so environmental factors never compromise adhesion.
When your coating manufacturer specifies a film build, we don't guess at it. We measure it, and we can document it for your records.
What We Coat
We specialize in parts that don't fit the production mold:
Machine frames, bases, and weldments for automation and robotics builders
Heavy fabricated steel assemblies and structural components
Oversized parts and awkward geometries
Architectural and ornamental steel
Municipal infrastructure and public art
Restoration work and previously failed coatings
Severely corroded components requiring full blast-to-bare-metal prep
If another shop said "too big," "doesn't fit the line," or "too far gone," send it to us.
Powder Systems We Apply
Thermoset Powder Coating
Polyester, epoxy, and hybrid systems for durable, attractive, corrosion-resistant finishes. Our preferred supplier is Tiger Drylac, a premium powder manufacturer, with access to Cardinal, Axalta, Sherwin Williams, and other major lines. Thousands of colors and textures available.
Thermoplastic Powder Coating
For severe-service environments where standard powder breaks down, we apply Plascoat PPA 571 (Axalta) and Protech Polyarmor and Waterarmor thermoplastic systems. These polyolefin-based coatings deliver superior impact, abrasion, corrosion, and UV resistance, with NSF-certified potable water formulations available. Ideal for fencing, water treatment, agricultural equipment, marine, and outdoor infrastructure.
Not sure which system fits your service environment? Tell us where the part lives and what it needs to survive. We'll recommend the right chemistry.
What Drives Powder Coating Cost
Straight answers, because we'd rather you understand the quote.
Powder selection. Powder pricing ranges widely between manufacturers and finish types. Metallics, textures, translucents, and candy colors cost more and require more skill to apply. Clear coat is required over all metallic and silver coatings. Multi-step finishes are quoted custom.
Part size and surface area. Surface area determines material consumption. Sheet metal and large fabrications are typically quoted by square footage; fencing and railing by linear foot.
Surface condition. Old, rusty, or previously coated parts need full preparation: burn-off, degreasing, and abrasive blasting to bare metal. Our quotes include blasting and prep, because we won't coat over a compromised surface.
Masking and plugging. Threads, machined surfaces, and precision holes are masked or plugged by hand to preserve dimensions. All thread masking is included in our pricing.
Racking. Every part is hung manually. Parts with hang holes rack faster. Large, heavy, or awkward parts take more time, which is exactly the work we're set up for.
One coat colour pricing includes abrasive blasting, masking of all threads, preparation, and powder coating.
Common Questions
Q: Do you handle small batches and one-off parts?
A: Yes. We're a batch shop, not a production line. One part or one hundred, the process is the same.
Q: My part is too big for other shops. Can you take it?
A: Probably. Heavy fabrications, oversized assemblies, and complex geometries are our specialty. Send dimensions and weight with your quote request.
Q: Can powder coating be touched up?
A: Not with more powder. Powder must be applied to the whole part and cured at once. Spot flaws mean stripping to bare metal and recoating, which is costly. This is why prep, application, and verification matter the first time.
Q: What surface prep do you do before coating?
A: Abrasive blasting in our indoor controlled booth, to the cleanliness standard and anchor profile your coating system requires. SSPC/NACE standards work with documentation is available.
Q: Do you verify film thickness?
A: On every job, using a PosiTector 6000 gauge. Profile and dew point measurement available for critical work.
Q: What's the difference between thermoset and thermoplastic powder?
A: Thermoset powders cross-link permanently during cure: hard, rigid, and the standard choice for most applications. Thermoplastics like Plascoat melt and fuse without cross-linking: tougher, more flexible, thicker film builds, and better suited to impact, abrasion, and severe corrosion environments.
Q: Where are you located and who do you serve?
A: 800 Progress Dr., London, Ontario. We serve London and the surrounding region, including St. Thomas, Woodstock, Ingersoll, Strathroy, and Sarnia.
Let's Talk About Your Project
NASCO Metal Finishing
800 Progress Dr., London, ON N6N 1B8
(519) 432-8346
Shipping/Receiving: Mon-Thu 8am-4pm, Fri closed
We're happy to review coating specifications, evaluate failed coatings, quote oversized assemblies, and recommend the right powder system for your service environment.
Problem parts welcome. If someone else said no, we'd like to hear about it.
