Gyeon Detailing FAQ: Ceramic Coating, Trailer Hitches, Mud Flaps & Car Soap Substitutes

I manage procurement for a 14-person detailing and fleet maintenance shop, and I've run the chemicals and consumables budget for six years. That's roughly $95,000 a year, negotiated across a dozen vendors, with every order logged in a cost tracking system I built out of frustration. I say that so you know these answers don't come from marketing copy - they come from purchase orders, service records, and a few expensive mistakes.

The questions below are the ones new customers, new staff, and even other shop owners ask me most. If you're dealing with Gyeon ceramic coating, Gyeon detailing products, a rusty trailer hitch, or mud flaps on a semi, you've probably wondered about at least one of these. No fluff.

What Can I Use Instead of Car Soap?

Quick answer: a rinseless wash diluted correctly, or plain water with a good microfiber towel. Water does way more than people think.

Dish soap is the wrong answer - and I get why people reach for it, because it's what's in the kitchen. Last spring, one of our techs used Dawn on a client's coated pickup because it was closer than the cabinet. That stripped the SiO2 topper we'd applied a week earlier. $60 of product gone, plus an hour of reapplication labor. All to save a walk.

If you're stuck and need something, dilute a rinseless wash - Gyeon Q²M Waterless Wash at 1:100 - and use that. It's pH-neutral, safe on coated surfaces, and goes for about $20-25 from a detailing supplier. A diluted all-purpose cleaner works fine on wheels, tires, and mud flaps, but keep it off paint. APCs aren't pH-balanced for clearcoat, and fixing etching costs far more than you saved on soap.

For the shop, Gyeon Q²M Wash runs about $28 a bottle (gyeon.com, June 2025 pricing) and covers 40-50 washes. Under a dollar a wash. When doing it right costs that little, substitutions are false economy.

Is Gyeon Ceramic Coating Good? What Do the Reviews Say?

Yes, it's good. We picked up the line in 2022, and I read a lot of reviews before we committed. The recurring comments: easy application, good finish, and durability that matches the spec. When we checked review volume in early 2025, the Gyeon line had thousands of verified reviews across multiple platforms. At that scale, you're past one-shop opinions.

But here's the procurement take: "good" depends on what you're comparing it to. Against a $30 wax, a $90 ceramic coating seems expensive. Against a $600 professional install, it's a deal. Gyeon's Q² coatings are DIY-friendly, and reviews consistently show 1-2 years of real-world durability. Mohs EVO pushes that to 2-3 years. The durability part matters for ROI. We track coating work like any capital expense - upfront cost divided by expected service life. Gyeon products have held up to that calculation.

I don't have hard data on how Gyeon compares to Ceramic Pro or Opti-Coat in lab testing. What I can tell you from our records: over 50 coating installs since 2023, with about 90% of daily-driven vehicles coming back for routine maintenance rather than coating repairs. That's a sample of one shop in the Northeast - results vary by climate.

We haven't found a reason to switch lines. The reviews matched the reality.

How Do I Protect a Steel Trailer Hitch from Rust?

Let me tell you how I learned this one.

Our first steel hitch came with a utility trailer in 2023. I assumed the factory powder coating would survive a New England winter. Didn't verify. By early 2024, the crossbar was rusted and the ball mount was pitting. Replacement hitch plus labor: $320.

The replacement got treated before it went on. We wire-brushed the surface, wiped it down with a panel wipe, and applied Gyeon Q² Rust - about $25 a can from gyeon.com (January 2025 pricing). Seventeen months later, no rust.

$25 vs $320. Simple math.

One caveat: this only works on a hitch that's in decent shape. If yours is already flaking and pitted, you're grinding down to bare metal first. That's labor, and it changes the equation. Q² Rust prevents rust; it doesn't resurrect a corroded hitch.

For fleet buyers, add hitch checks to the preventive maintenance schedule. Ours is a 30-second look every oil change - cheap insurance.

How Do I Clean Mud Flaps on a Semi?

Pressure wash first to knock off the bulk of the grime. Then spray a tire and trim cleaner like Gyeon Q²M Tire Express, let it dwell 2-3 minutes, agitate with a stiff brush, and rinse. For tar and oil residue, a tar remover - we use Q²M Tar - softens it without damaging the rubber.

Why bother? Replacement mud flaps for a semi run $25-80 per pair, depending on weight and brand (vendor quotes collected December 2024). Before we had a schedule, we had to replace flaps every 18 months or so. Road salt and petroleum residue turned them stiff and cracked. The third time it happened, I finally added flap cleaning to the PM checklist.

Since then? Monthly cleaning, a plastic conditioner twice a year, and 20 months without replacing a single flap. On two semis, that's real money.

Also worth remembering: cracked or missing flaps are a DOT violation. A citation plus inspection time is a way bigger cost than the flap itself.

Gyeon Q² vs Mohs EVO: Which Is the Better Value?

The answer depends on what you're protecting. I know that's not the clean one-liner people want, but after six years of reconciling invoices, I'm done pretending there's a single right answer.

Q² is the entry point - about $60-70 for a consumer kit. Mohs EVO is professional-grade, around $150-180 for the larger kit. On paper, Q² looks like the budget option. In practice, that's the wrong framing.

For a personal daily driver, Q² is the right call. It's forgiving to apply, cures quickly, and holds up for 1-2 years. For a client's vehicle with a substantial paint correction already invested, Mohs EVO makes sense. The labor is the same either way, and the extra $80-100 in product is cheap insurance against an early failure conversation. When a customer asks for "the best ceramic coating," I ask two questions first: how long are they keeping the vehicle, and how is it parked? The answers tell me more than any brand comparison.

I measure all consumables by cost per month of protection, not upfront price. On that metric, both products perform. The best value is whichever fits the vehicle's situation.

What's the Real Cost of Ceramic-Coating a Fleet?

Lower than the sticker price, if you count the savings. We coated three service vans with Mohs EVO in late 2023. Product cost: about $450. Prep took two days of our detailer's time - $600 in labor we couldn't bill. Total upfront: roughly $1,100.

Twelve months of wash and chemical tracking showed monthly spend on those vans drop from $320 to $210. That's $1,320 saved in one year - enough to cover the entire coating investment. The vans also looked better at customer sites, which isn't a line item, but isn't nothing.

I've come to believe the real question isn't "should I ceramic coat my fleet?" It's "what am I already spending per vehicle per year on protection?" Add up wax hours, quick detailer, sealant, and the occasional correction polish. Once that number's on paper, the coating decision is obvious - one way or the other. We built that spreadsheet in about an hour. Best hour of research I've done on this job.

Context matters. Our 2015 box truck with 180,000 miles will never get coated. That would be like buying tires for a car you're selling to the junkyard. Value over price - yes. But value is still calculated per vehicle.