N NorthlineCoating

Two decades of coating
metal for people who
notice the details.

Northline Coating is a family-run powder coating shop on the southwest side of Grand Rapids. We started in 2005 with a single batch oven and a truck. Twenty years later we run two production cells, a 7-stage pretreatment line, and the same crew that helped us lay the first rack.

0 Founded in Grand Rapids
0 Production lots shipped
0 Thousand sq ft facility
0 Craftspeople on staff
Our story

A shop built on
one stubborn idea.

When Dan and Maria Reyes opened Northline in the spring of 2005, powder coating in West Michigan was dominated by a handful of large shops that treated anything under a full pallet as a nuisance. The two of them had spent a combined fifteen years working inside operations like that — Dan running pretreatment chemistry, Maria handling scheduling and QC — and they were tired of watching small fabricators get pushed to the back of the line.

Their first facility was a rented 4,000 square foot bay off Chicago Drive with a used batch oven and a hand-me-down blast cabinet. The first job was a set of twelve custom gate frames for a landscaper down the road. The second was a run of motorcycle wheels that a Detroit restoration shop needed in a specific RAL grey that nobody else would mix.

That mix — small runs, weird colors, real deadlines — became the foundation of the business. By 2012 Northline had outgrown the Chicago Drive bay and moved into a 22,000 square foot building on Burton Street. In 2018 we doubled down with a second coating cell and the automated pretreatment line that still handles most of our production work today.

We are still family-owned. Maria runs operations and scheduling. Dan still walks the pretreatment line every morning before the first rack goes in. Their son Eli, who grew up sweeping the shop floor after school, now runs quality control.

Milestones

Twenty years,
one line at a time.

  1. 2005

    Northline opens

    Dan and Maria Reyes lease a 4,000 sq ft bay off Chicago Drive with one used batch oven and a hand-blast cabinet.

  2. 2008

    First production contract

    Signed a three-year agreement with a Grand Rapids furniture fabricator — 40,000 parts per year across six SKUs.

  3. 2012

    Move to Burton Street

    Relocated into a 22,000 sq ft facility on the southwest side, adding a second batch oven and a dedicated masking bay.

  4. 2015

    ISO 9001 certification

    Formalized QC processes, lot traceability, and calibration schedules. Recertified every cycle since.

  5. 2018

    Second cell & pretreatment line

    Expanded to 48,000 sq ft. Installed a 7-stage iron phosphate line and a second Nordson coating cell for parallel production.

  6. 2022

    AAMA 2605 approval

    Approved applicator status for architectural finishes. Began coating curtain wall components for regional facade projects.

  7. 2025

    Twenty years in business

    Over 12,400 production lots shipped. Twenty-eight full-time employees. Still family-owned, still on Burton Street.

What we believe

The rules we don't bend.

01

Say no when it's the right answer

If a job isn't a fit for our line — wrong substrate, unrealistic spec, a deadline we can't honor — we tell you and point you somewhere better. Bad jobs cost everyone more than they're worth.

02

Pretreatment is not optional

The single biggest cause of powder coat failure is bad prep, not bad powder. We refuse to skip stages on pretreatment even when it slows the line down.

03

Small runs deserve the same line

A ten-piece order goes through the same pretreatment, same cure schedule, and same QC as a ten-thousand-piece production run. No second-class work.

04

If we got it wrong, we make it right

Recoating a rejected lot costs us money. We do it anyway, without argument, and we don't pass the cost along. That's the whole point of a warranty.

05

Our crew is the equipment

Ovens and booths are commodities. The people who run them are not. Average tenure on our floor is over eight years, and we pay to keep it that way.

06

Reclaim everything we can

Powder overspray gets captured and reused. Our reclaim rate sits above 92%. It's better for the environment and better for the price we can quote you.

The shop

48,000 square feet
on Burton Street.

Our facility sits on the southwest side of Grand Rapids, five minutes off US-131 and directly on the Burton Street industrial corridor. We chose this location on purpose: it keeps us close to the fabricators, machine shops, and contractors who make up most of our customer base.

The building runs two independent coating cells so a rush job never has to push production work off the schedule. A separate loading bay handles inbound parts and outbound shipments without ever crossing the coating floor.

Cells 2 independent powder coating lines
Pretreatment 7-stage iron phosphate + media blast
Ovens Dual batch ovens, 24 ft max part length
Application Nordson HDLV manual + automated booths
Cure capacity Up to 400°F sustained dwell
Loading Dedicated dock, 53 ft trailer access
Leadership

The people who
sign off on your parts.

Dan Reyes

Co-Founder & Pretreatment Lead

Twenty-eight years in industrial finishing. Personally walks the pretreatment line every morning before the first rack goes in.

Maria Reyes

Co-Founder & Operations Director

Runs scheduling, customer service, and the truck. The reason most of our quotes go out inside a business day.

Eli Reyes

Quality Control Manager

Grew up sweeping the shop floor. Now owns lot traceability, adhesion testing, and the calibration schedule.

Tanya Brenner

Production Supervisor, Cell 2

Eleven years at Northline. Runs the second coating cell and handles most of our architectural AAMA work.

Work with us

Want to see the shop
before you commit?

We're happy to give tours to fabricators, contractors, and engineers who are evaluating a coater. Walk the line, watch a run, ask the hard questions. Call Maria directly or send us a note.