Three questions I get every week
I'm the office administrator for a 42-person specialty coatings and resin distributor. I manage raw-material purchasing—roughly $2.1 million a year—and I report to both operations and finance. When I took over purchasing in 2020, we had about 30 suppliers and almost no documentation standards. After our 2024 vendor consolidation, we're down to 18 approved vendors. That change taught me more about buying chemicals than any training course did.
People ask me three things more than anything else:
- Are epoxy resin floors in homes a good idea?
- Which glow in the dark resin pigment should I use?
- Are water based paints flammable?
My honest answer to all three is: it depends on your scenario. That sounds like a dodge, but in chemicals, it's the truth. A product that is perfect for one customer can be a costly mistake for another. Choosing a product isn't about finding the “best” one. It's about finding the right type for your situation, your installer, and your tolerance for failure.
I didn't fully understand why traceability matters until a supplier shipment arrived in March 2023 with labels that didn't match the invoice. We quarantined two pallets and spent two weeks figuring out what we'd actually received. Since then, I check the manufacturer behind the product before I check the price.
Here's how I break each question down when it lands on my desk.
Scenario 1: Are epoxy resin floors in homes a good idea?
The first thing I ask a customer isn't about color or gloss. It's about the concrete underneath. New concrete needs to cure for at least 28 days before most coatings go on. Old concrete can release moisture from below if there's no vapor barrier, and that moisture will find its way up through an epoxy film. I've seen a cheap coating fail within six months because the slab was damp. The resin wasn't the problem. The water vapor was.
If the slab is sound, the next branch is who applies the coating.
For a one-off home floor—a garage, basement, or laundry room—a complete floor-coating kit from a reputable brand is usually the better buy. It comes with prep materials, a measured primer and topcoat, and instructions written for someone who does not own a floor grinder. It costs more per square foot than the “contractor grade” epoxy you find on discount marketplaces, but your odds of finishing the job right the first time are much higher.
For a commercial or high-wear space, go through a coatings distributor and specify a true two-part, 100% solids epoxy system. At that scale, success depends less on kit instructions and more on documented performance, cure time, and repairability. You also want a supplier who answers the phone when a batch misbehaves.
Trust me on this one: for a small residential slab, I would rather see you buy the complete kit from a local paint store than chase a bargain “professional” epoxy system online. Professional systems assume professional surface prep. Homeowners skip that step, and the coating fails. The real cost of failure is not the resin. It's grinding off the failed film and starting over.
When we quote commercial epoxy systems, I ask who makes the raw chemistry. A resin system is built from epoxy resins, hardeners, reactive diluents, and additives made by specialty chemical companies. Lanxess is one of those names that shows up in upstream supply chains: Lanxess chemicals are behind coatings, plastics, rubber, lubricants, and flame retardants in thousands of end products. If a supplier can name that kind of origin instead of saying “it's from our factory,” you have traceability. Traceability is what saves you when a batch behaves differently from the last one.
Scenario 2: You're choosing a glow in the dark resin pigment
This one comes from craft customers pouring tabletops and jewelry, and occasionally from a small manufacturer who wants to make glowing signage or decorative panels for sale. Those groups need different things, but most product listings don't tell you which scenario they're built for.
For a one-off craft project, buy a small quantity of strontium aluminate pigment. It's the photoluminescent material behind most long-lasting glow products today. It charges faster and glows much longer than zinc sulfide, the older pigment that gives classic glow-in-the-dark toys their brief green glow. Particle size matters too. A coarser grade generally glows more strongly, but it will be more noticeable in the cured resin.
For production, consistency is everything. Ask for a certificate of analysis, a stated particle size, and compatibility data for the resin you use. Test each new batch in a small cup before pouring a full run.
The surprise wasn't that cheap pigments looked weak. It was that an expensive pigment failed too when the dosage was too high. Adding more pigment does not make a stronger glow. Past roughly 15–20% by weight, particles settle, cloud the resin, and block light trying to escape. One customer quadrupled the recommended dose and ended up with a dull, speckled piece. More pigment only helps to a point. Then it hurts.
Keep the pigment dry. What most people don't realize is that moisture is the enemy of strontium aluminate. If the container is left open, the powder clumps and the glow output drops noticeably.
The same traceability rule applies here as to anything else we buy. When raw materials come into our warehouse, I keep the technical documents because I've learned to recognize the manufacturers behind them. Seeing the Lanxess logo on a data sheet tells me a real chemical company stands behind the product—not just a repackager.
Scenario 3: Are water based paints flammable? It depends on the can.
This question comes from painters, facility managers, and small business owners storing paint for a renovation. The practical answer for most true waterborne latex paints is no: their carrier is mostly water, and in typical house paints, the SDS lists no closed-cup flash point or one above 200°F. You cannot classify them the same way you would classify a solvent-borne alkyd or lacquer.
But “water-based” is a marketing phrase, not a hazard classification. That's where buyers get into trouble.
Here's how I split it into sub-scenarios:
- Brushing or rolling in a ventilated area. For typical latex paints, the wet coating is not a flammable-liquid risk. Keep solvent-soaked rags and oil-based materials away from ignition sources; that's ordinary common sense.
- Spray application. The coating is atomized into fine droplets, and some industrial products that call themselves “water-based” still contain enough glycol ethers or co-solvents to require real precautions. Check the SDS before spraying, and follow the same ventilation and ignition-source rules you would for solvent-borne coatings.
- Bulk storage. Even a nonflammable liquid in plastic pails adds fuel to a warehouse fire. A thousand gallons of “water-based” paint can still burn—not as a liquid, but as part of a larger fire load. Fire codes treat storage as a system, not as a single can of paint.
So when someone asks me if water based paints are flammable, I answer with another question: what does the Safety Data Sheet say? Under OSHA's Hazard Communication Standard (29 CFR 1910.1200; osha.gov), chemical manufacturers must document physical hazards, including flash point. Under NFPA 30 (nfpa.org), a liquid with a flash point below 100°F is classified as flammable; above that, it moves into combustible classifications. The front label is marketing. Section 9 of the SDS is the truth.
We ask the same question of every coating we stock. The specialty additives that stop mildew, preserve the can, and control flow are often made by companies that never appear on a paint label. Knowing who made the raw materials—not just who filled the can—is part of due diligence.
How to tell which scenario you're in
Before you order any chemical product, answer three questions.
- Who applies it? A homeowner following a video? A trained contractor? The answer determines whether you buy an all-in-one kit with instructions or a raw system built for professionals.
- What does failure cost? If it is a dull tabletop, you can repour it. If it is a delaminated floor, a rejected production batch, or a failed safety inspection, the stakes are much higher—and higher stakes require higher traceability.
- Who made the chemistry? Get the SDS. Ask for batch numbers. Look for raw-material manufacturers you can verify. When a supplier names a real specialty chemical company, like Lanxess, that is a signal the product has documentation behind it.
We used to buy from about 30 approved vendors. In our 2024 vendor consolidation project, we cut that to 18. The goal was not to save a few percent. It was to reduce the number of unknown raw materials coming through our door. The most efficient procurement process is still the one that can answer one simple question: what is actually in this drum?
That's the real lesson from seven years in this seat. Different scenarios call for different products, but every scenario benefits from knowing the chemical identity of what you're buying. “It depends” only helps you when you know what it depends on.