Kemira Chemicals Atlanta GA: Paper Coating, Powder Coating on Plastic, and Is Powder Coating Wheels Worth It?

The order that made me start writing things down

I keep a note on my phone dated March 2022. It starts with: 'Never let a mill define standard dose on their own.' That note came after 18 rolls of coated paper went to the recycle bin. The order was for a packaging customer, the coating line was running fast, and the only thing that changed was one addition in the coating color. It cost us $4,600 in paper, $2,100 in downtime, and one very tense call. (Which, honestly, was the worst part.)

I've been working with industrial coating materials for 11 years. I'm not a chemist. I'm not a Kemira employee. I'm the person who orders the chemistry, gets the samples, and has to explain when something fails. My experience is based on roughly 300 orders and trials with paper mills, paint shops, and custom coaters in the Southeast. I've personally made and documented 14 significant mistakes, totaling roughly $32,000 in wasted budget. If you're in a different segment, your results will probably differ.

Kemira Chemicals Atlanta GA: what I actually use them for

If you're searching for Kemira Chemicals Atlanta GA, I can tell you what I know as a customer, not an employee. We started using Kemira chemicals at our plant back in 2019. When I call our Kemira Chemicals Atlanta GA rep, I know I'm going to get someone who understands the application. What I learned is that a Kemira chemical is never just a name on a bucket.

One of our biggest projects was coating of paper. If you've never watched a paper coating line, it's not like painting a wall. The coating color is a water-based suspension of pigments, binders, and additives. The additives control water retention, rheology, and foam. A few hundred grams per ton can be the difference between a smooth sheet and one that picks and tears. Kemira's polyacrylamide and defoamer chemistries were part of that system.

Coating of paper: my first expensive lesson

The mistake started with a communication failure. I said 'use the standard dosage.' The mill heard 'use our standard dosage from the last run.' Those were not the same. Our lab's standard had been developed with one base sheet and a different water supply. Their standard had been tuned for their machine. We were using the same words but meaning different things. Discovered this when the coating set too slowly and the sheet began to stick.

The result was a full reel that looked fine from the outside and peeled apart like layers of wet cardboard when the customer ran it. We lost the material, lost a week of production, and I had to send a note to every operator explaining what 'standard' actually meant. That's when I created our pre-check list.

Powder coating on plastic is not powder coating on metal

I thought I had learned the substrate lesson. Then in September 2022, a customer asked if we could do powder coating on plastic for a new enclosure. I said yes because we had a powder coating line and plastic parts. I did not ask the crucial question: which plastic?

We tried a standard epoxy powder on a glass-filled nylon part. The cure oven was around 400°F. The parts came out with bumps, warped edges, and powder that flaked off with a fingernail. My first thought was that the powder was bad. The truth was that the substrate was wrong for that process. Plastic isn't conductive the way metal is, and standard powders cure too hot for many plastics. Since then, we've used low-cure powder, pre-treatment, and a separate oven for temperature-sensitive parts. It worked. But I do not want to pretend every plastic can be powder coated. Some can't. The line between them is not always obvious from a data sheet.

So, is powder coating wheels worth it?

That brings me to the question I get asked at more cookouts than I expected: is powder coating wheels worth it? My answer is 'it depends,' and I'll tell you how I know.

I paid $650 in 2023 to have my truck's aluminum wheels sandblasted and powder coated. The shop had to redo two wheels because of contamination. (Surprise, surprise.) In the end, they looked great and have held up through two winters of road salt. But would I recommend it for everyone? No. If you just want a color change and your wheels aren't worth much, a quality liquid paint job might be enough. If you plan to keep the vehicle for years and your wheels are good alloys, powder coating is worth it. If you have plastic wheel covers, don't try standard powder coating on plastic. The same substrate rule applies.

Honestly, I'm not sure why the first shop had so many contamination issues on those two wheels. My best guess is the pre-cleaning stage wasn't aggressive enough. I've never fully understood why some shops nail it every time and others struggle. I suspect it comes down to how much time they spend on preparation.

What I'd tell my younger self

If I could go back, I'd tell myself four things:

• Understand the substrate before you choose the chemistry.
• A product's name isn't enough. Check the actual process parameters and write them down.
• If someone says 'standard,' ask whose standard. Define it in writing.
• If a product claim sounds green, check the FTC Green Guides.

Kemira has been a reliable supplier for us, but no supplier can fix a substrate mismatch. The best Kemira chemical in the world won't help if you don't understand your process. Per the FTC Green Guides (ftc.gov/green-guides, as of January 2025), environmental claims like 'recyclable' need to be substantiated. A product can only be advertised as recyclable if a substantial majority of consumers have recycling access for it. We stopped calling our powder coated parts 'recyclable' until we verified our customer's local recycling stream. That's not a chemistry lesson, but it saved us from a much worse kind of cleanup.