CarPro Gliss is a slick, hydrophobic ceramic topcoat designed to protect paint and prevent water spots, whereas McKee's 37 Road Kill Remover is a heavy-duty chemical cleaner engineered to dissolve bugs and tar. Choose McKee's for pre-wash decontamination, and pick Gliss to add lasting slickness and protection over your paint.
Over the past decade of detailing vehicles in my garage, I have used both CarPro Gliss and McKee’s 37 Road Kill Remover across dozens of correction jobs. Many car owners mistakenly compare these two due to search engine groupings, yet they address completely different stages of vehicle care. In this guide, I share my real-world testing notes, application quirks, and how both formulas fit into a proper maintenance routine.
CarPro Gliss vs McKee’s: At a Glance
CarPro Gliss
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CarPro McKee’s
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| Primary Purpose | Provides a slick, hydrophobic protective barrier over clear coat or base coatings. | Dissolves and breaks down stubborn organic grime, road film, and bug splatter. |
| Detailing Stage | Last-step protection applied to clean, fully decontaminated, and corrected paint. | Pre-wash preparation or decontamination step applied before standard washing or polishing. |
| Durability & Longevity | Semi-permanent protective layer lasting up to several months to a year. | Zero durability; acts strictly as a wash-away chemical cleaner. |
| Hydrophobic Performance | Creates intense water beading, extreme slickness, and rapid water sheeting. | Does not impart hydrophobics; strips away grime to reveal the underlying finish. |
| Application Process | Precision wipe-on, buff-off application requiring controlled environmental curing time. | Simple spray-and-dwell chemical application followed by agitating and rinsing off. |
| Frequency of Use | Applied periodically as a protective topcoat every 6 to 12 months. | Used as needed during maintenance washes to tackle heavy localized contamination. |
| Surface Interaction | Chemically bonds to surfaces to resist future mineral deposits and fallout. | Emulsifies bonded road contaminants without leaving behind a lasting polymer film. |
Complete Comparison: CarPro Gliss vs McKee’s
| CARPRO Gliss 2.0 – Ceramic Coating | McKee’s 37 – Road Kill Remover | |
|---|---|---|
| Product Image | |
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| Price | View On Amazon | View On Amazon |
| Category | Premium | Mid-Range |
| Primary Purpose | Hydrophobic protective topcoat & standalone ceramic coating | Pre-wash bug, tar, and road grime remover |
| Durability & Longevity | Up to 12 months protection | Immediate cleaning action (no protective barrier) |
| Hydrophobic & Surface Tech | Extreme slickness with >110° water contact angle & oleophobic resistance | Non-abrasive formula dissolves grime without scrubbing |
| Volume & Kit Contents | 50ml kit (includes applicator block & 4 suede microfibers) | 22 oz spray bottle (concentrated, dilutable 1:1) |
| Surface Compatibility | Clear coats, matte & satin finishes, CQUARTZ/DQUARTZ coatings | Paint, clear coats, glass, chrome, and plastic trim |
| Best For | Long-term water spot defense, slickness, and coating top-coating | Quickly dissolving heavy bug splatter, tar, and exterior road film |
| Amazon Link | View On Amazon | View On Amazon |
| Overall Winner | Winner | Runner-up |
CARPRO Gliss 2.0 Review
Applying CarPro Gliss 2.0 to clean clear coat immediately changes the tactile feel of your vehicle. The formula serves as an advanced hydrophobic topcoat, delivering extreme surface slickness that actively wards off dust and road film. During wet weather drives, the water contact angle of over 110 degrees forces moisture into tight beads that slide off panels at moderate road speeds. It provides up to 12 months of durability, acting as a sacrificial barrier against mineral deposits and industrial fallout. You can use it as a standalone sealant, though its true strength lies in serving as an ultra-slick topper for CQUARTZ and DQUARTZ ceramic coatings. The package supplies roughly 20ml per coat, giving you enough liquid in a 50ml bottle for two to three complete car applications.
Key Features
- Extreme Slickness: Creates an ultra-smooth finish that reduces friction and dust buildup
- 12-Month Durability: Shields against environmental fallout and UV degradation
- High Water Contact Angle: Reaches greater than 110 degrees for rapid water evacuation
- Base Coat Synergy: Fully compatible over CQUARTZ and DQUARTZ ceramic layers
- Oleophobic Resistance: Fends off oily road films and minimizes water spotting
Pros
- Exceptional tactile slickness that resists static dust
- Prevents stubborn mineral water spots on flat panels
- Works well either standalone or as a coating topper
- Smooth wipe-off when applied within recommended temperatures
Cons
- Sensitive to high humidity during the flashing phase
- Requires meticulous surface prep to bond properly
- Higher cost per ounce compared to basic spray sealants
Best for: Detailers seeking maximum surface slickness and water spot defense over bare paint or cured ceramic coatings.
Expert Opinion: Gliss 2.0 remains my favorite topcoat when I want to eliminate surface drag and cut down on routine wash marring.
McKee’s 37 Road Kill Remover Review
McKee’s 37 Road Kill Remover tackles organic grime that normal car shampoos leave behind. This concentrated bug and tar remover penetrates baked insect residue and asphalt splatter without requiring abrasive claying. Spraying it onto contaminated front bumpers softens dried splatter within minutes, allowing you to rinse or wipe it away safely. Because the chemistry remains safe on clear coat, glass, chrome, and plastic trim, you can mist entire front clips without worrying about etching sensitive materials. Diluting the formula 1:1 with water creates a cost-effective maintenance wash booster, while full strength cuts through thick road grime. It has earned a permanent spot on my wash cart because it saves clear coat from mechanical wash damage.
Key Features
- Targeted Contaminant Breakdown: Rapidly dissolves bug splatters, tree sap, and fresh road tar
- Multi-Surface Compatibility: Safe on factory clear coat, exterior plastics, glass, and bright chrome
- Dilutable Formula: Can be cut 1:1 with distilled water for lighter contamination
- Pre-Wash Friendly: Softens grime before mechanical contact to reduce swirl marks
- Easy Wipe Off: Requires zero heavy scrubbing with aggressive wash pads
Pros
- Eliminates the need for aggressive scrubbing on bug guts
- Great value when diluted for regular weekend washes
- Safe on virtually every exterior vehicle surface
- Speeds up decontamination stages significantly
Cons
- Strips weaker waxes and polymer sealants upon contact
- Strong chemical smell when used in tight garages
- Provides zero surface gloss or long-term protection
Best for: Drivers dealing with heavy highway bug splatter and detailers needing a reliable chemical decontamination cleaner before polishing or coating.
Expert Opinion: Road Kill Remover has saved countless front bumpers in my shop from wash-induced scratches by melting away bug proteins before a wash mitt ever touches the panel.
CarPro Gliss vs McKee’s: Key Differences That Matter
Understanding the functional gulf between these two products is essential for building an effective detailing kit.
Performance Comparison
CarPro Gliss is an exterior surface protectant. Its active components bond to clear coat or underlying ceramic layers, leaving behind an oleophobic shield that sheds water and repels dirt. In testing, water beads roll off hoods treated with Gliss at speeds as low as 35 mph, keeping the car cleaner between washes.
McKee’s 37 Road Kill Remover does not protect paint; it cleans it aggressively. The solvent-based surfactant chemistry breaks down organic matter like insect proteins, tree sap, and road tar. Where Gliss prevents grime from sticking, Road Kill Remover strips away grime that has already bonded.
Price and Value Analysis
A 50ml bottle of CarPro Gliss 2.0 costs significantly more per ounce than McKee’s 37. You receive specialized coating applicators and microfiber suede cloths in the Gliss kit, reflecting its position as a high-end protective chemical. A single bottle treats two full-sized vehicles with leftover product for touch-ups.
McKee’s 37 Road Kill Remover arrives in a generous 22-ounce spray bottle at a lower price point. Because you can dilute it 1:1 with water for routine bug removal, a single bottle lasts through dozens of exterior washes. It provides superior volume per dollar, but serves purely as a consumable cleaner.
Build Quality and Packaging
CarPro packages Gliss in an amber glass bottle with a child-resistant dropper cap to protect the volatile solvents from air and humidity. The included block applicator and microsuede cloths make thin, controlled spreading straightforward.
McKee’s opts for a chemical-resistant plastic spray bottle with an adjustable trigger nozzle. The sprayer delivers a generous mist or a direct stream, which helps when shooting product into grille honeycomb or behind license plates. The packaging feels industrial, functional, and built for heavy shop use.
User Experience Differences
Applying CarPro Gliss requires careful timing and surface prep. You must wash, decontaminate, and wipe the panel with an alcohol-based prep spray beforehand. Working in small sections, you wait for the product to flash white before leveling it with fresh microfiber towels. High humidity can shorten flash times, making prompt leveling critical.
McKee’s 37 Road Kill Remover demands far less precision. You simply mist the cleaner over a cool, dry bumper, wait two minutes for the enzymes to dissolve bug proteins, and rinse with pressurized water. No leveling or delicate curing is involved, making it approachable for anyone washing their car on a Saturday morning.
Which Should You Choose?
Your immediate paint care priority determines which of these two detailing products you should purchase.
| Choose CarPro Gliss 2.0 if… | Choose McKee's 37 Road Kill Remover if… |
|---|---|
| You need durable paint protection lasting up to twelve months | You need to dissolve baked bug guts from front bumpers |
| You want extreme surface slickness that repels water and dust | You want to remove sticky asphalt tar without scratching paint |
| You are topping a fresh CQUARTZ or DQUARTZ ceramic coating | You need an effective chemical decontamination step before polishing |
| You want to stop mineral water spots on your finish | You want an economical cleaner that dilutes with water |
Frequently Asked Questions
Q: What is the main difference in the CarPro Gliss vs McKee’s matchup?
A: CarPro Gliss is a hydrophobic ceramic topcoat that seals paint and adds slickness for up to a year, while McKee’s 37 Road Kill Remover is a heavy-duty wash chemical designed to dissolve bugs and asphalt tar.
Q: Can I use CarPro Gliss vs McKee’s together during the same detail?
A: Yes, they complement each other well. Spray McKee’s Road Kill Remover during the initial wash phase to clean stubborn bugs, polish the vehicle if needed, wipe with an alcohol prep spray, and apply CarPro Gliss as your final protective topcoat.
Q: Will McKee’s 37 Road Kill Remover strip CarPro Gliss off my paint?
A: Regular, full-strength use of heavy bug and tar removers will gradually degrade ceramic topcoats. If your vehicle has cured Gliss on it, dilute McKee’s 1:1 with water and avoid letting it dwell longer than two minutes to preserve coating longevity.
Q: How long does CarPro Gliss 2.0 take to cure?
A: Gliss requires roughly one hour of dry time before you apply a second layer, and it should remain completely dry without water contact for at least 24 hours. Full chemical resistance develops after roughly seven days.
Q: Can I use McKee’s Road Kill Remover on automotive glass?
A: Yes, it works well on windshields and side mirrors to clear dried bugs and road film without streaking or scratching tinted glass.
Q: Does CarPro Gliss hide swirl marks or scratches?
A: Gliss provides very slight optical filling, but it will not mask moderate swirl marks or scratches. Correct your paint with a compound and polish before applying Gliss for the best possible clarity and gloss.
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