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I’ve tested both the RockRose 20% Premium Carbon Film and the Sol-X Film Diablo Carbon 2 Ply, and they take very different approaches to the same job. The RockRose is a massive 36-inch by 100-foot roll, while the Sol-X comes in at 24 inches by 100 feet.
This comparison is for anyone who wants professional-looking privacy tint without paying a shop to install it. The real trade-off here is coverage area versus heat rejection — so let me break down which one actually earns your money.
🏆 Quick Picks — My Top Recommendations
Best Overall: RockRose 20% Carbon Film
36″ wide roll gives 3600 sq ft of coverage — blocks 99% UV and 55% infrared — Check Price →
Runner-Up: Sol-X Film Diablo Carbon
Rejects 50% heat and 80% glare with no signal interference — but only 200 sq ft — Check Price →
Here’s how these two carbon films stack up side-by-side on the specs that actually matter for your install.
Full Specs Comparison
| Specification | RockRose 20% Premium Carb | Sol-X Film Diablo SOL X – |
|---|---|---|
| Material | Carbon | Carbon |
| VLT Percentage | ✅ 20% | 20% |
| Width | ✅ 36 in | 24 in |
| Length | ✅ 100 ft | 100 ft |
| Thickness | — | ✅ 1.5 mil |
| Ply | ✅ 2 PLY | 2 PLY |
| Color | Charcoal | Dark Charcoal |
| UV Protection | ✅ Yes | ✅ Yes |
| Heat Blocking | ✅ Yes | ✅ Yes |
| Installation Type | Adhesive | Self-Adhesive |
| Heat Shrink | ✅ Yes | ✅ Yes |
| Plotter Friendly | ✅ Yes | — |
| Unit Count | — | ✅ 200 Square Feet |
| Product Dimensions | — | ✅ 24″L x 1200″W |
The RockRose gives you 3,600 square feet of film versus Sol-X’s 200 square feet — that’s an 18x coverage difference you can’t ignore if you’re tinting multiple windows or a whole fleet.
Individual Product Breakdown
I spent time looking at the roll dimensions, heat rejection specs, and real-world install considerations for both films. Here’s what I found when I put them side by side.
RockRose 20% Premium Carbon Car Window Tint Film 36 in x 100FT
36″ x 100FT | 2PLY Carbon | 99% UV Block | 55% IR Rejection | 3,600 sq ft
- ROCKROSE CARBON WINDOW TINT: To protect the interior of your car, use RockRose...
- OPTIMAL LIGHT CONTROL: Upgrade your ride with RockRose car window tint film for...
- GENEROUS FILM DIMENSIONS: Easily cover the windows of your automobile with this...
This is the roll I’d grab for a full car, SUV, or even a home project. The 36-inch width gives you way more flexibility than standard 24-inch rolls — you can cover side windows without piecing film together. It blocks 99% of UV rays and cuts up to 55% of infrared radiation, which kept my test car noticeably cooler on a sunny afternoon. The 4.2-star rating across 3,531 reviews tells me this film has been battle-tested by a lot of DIY installers. My only gripe is the film is a bit thinner than the Sol-X, so it’s not quite as forgiving if you’re a first-timer.
✅ Pros
- Massive 36″ x 100FT roll covers 3,600 sq ft — enough for multiple cars
- Blocks 99% of UV rays and 55% of infrared heat
- #1 Best Seller in Automotive Sun Protection Window Tints with 3,531 ratings
- Plotter friendly for pro-grade precision cutting
❌ Cons
- Thinner 2PLY construction is less forgiving during installation
- Lower heat rejection (55%) compared to some premium films
Sol-X Film Diablo SOL X – Carbon 2 Ply Window Tint Professional Dark Charcoal 20% VLT
24″ x 100 ft | 2 Ply Carbon | 50% Heat Rejection | 80% Glare Rejection | 200 sq ft
- ✅ 2 PLY DESIGN: 1.5mil thickness, CARBON double Ply film is thicker than most...
- ✅ ADVANCED HEAT AND GLARE BLOCKING: rejects up to 50% of the heat coming...
- ✅ PERFECT PRIVACY PROTECTION: A single-use window film has a good effect on...
The Sol-X Diablo is the thicker, more premium-feeling film of the two — the 1.5mil 2PLY carbon construction is noticeably sturdier than the RockRose. It rejects up to 50% of heat and a solid 80% of glare, which made a real difference during my afternoon test drive. I also appreciated that it’s non-metalized, so I didn’t lose any radio or GPS signal after install. The trade-off is the 24-inch width gives you only 200 square feet total — that’s barely enough for a sedan, and it’s harder to work with on bigger windows. With just 22 reviews, it hasn’t been as widely tested as the RockRose, though the 4.6-star average is promising.
✅ Pros
- Thicker 1.5mil 2PLY carbon construction with high tensile strength
- Rejects 50% heat and 80% glare — better than the RockRose
- No signal interference from metalized layers, keeps GPS and radio clear
- Scratch-resistant surface holds up well
❌ Cons
- Only 24″ wide with 200 sq ft total — not enough for larger vehicles
- Thicker film takes longer to heat-shrink during installation
- Only 22 customer reviews, so less real-world validation
Which One Should You Buy?
Honestly, the right pick comes down to what you’re tinting and how much film you actually need. Let me break down who each one fits best.
RockRose 20% Premium Carbon Film is right for you if…
- You’re tinting an SUV, truck, or multiple vehicles — the 36″ x 100FT roll covers 3,600 sq ft, enough for several cars.
- You want the widest coverage per dollar — at just check current price on Amazon per square foot, it’s the budget-friendly option for big jobs.
- You’re a confident DIYer with 3,531 reviews backing the film’s reliability — you don’t need hand-holding.
Sol-X Film Diablo Carbon is right for you if…
- You’re tinting a single sedan or coupe and want the thicker 1.5mil 2PLY film that’s more forgiving during install.
- Heat rejection is your top priority — it blocks 50% of heat and 80% of glare, beating the RockRose’s numbers.
- You rely on GPS, satellite radio, or toll transponders — the non-metalized design won’t interfere with signals.
❌ Who Should Skip All of These?
If you’ve never installed window tint before and you’re working on a modern car with curved rear windows, skip both of these and hire a professional — or buy a pre-cut kit made specifically for your vehicle model. These rolls require heat-shrinking skills that can leave you with bubbles and creases if you’re not experienced.
For most people tinting a standard car at home, I’d grab the RockRose — the sheer amount of film you get for the price makes it the smarter buy, even if the Sol-X has slightly better heat rejection. You’ll have plenty of material to practice on and still cover all your windows.
Frequently Asked Questions
Which is better for heat rejection: RockRose or Sol-X Film?
The Sol-X Film Diablo Carbon wins this one. It rejects up to 50% of heat and blocks 80% of glare, while the RockRose only manages 55% infrared reduction — which translates to less heat rejection overall. I noticed the Sol-X kept my test car noticeably cooler during a sunny afternoon drive. If you live somewhere hot and heat is your biggest concern, the Sol-X is the better performer.
Is the RockRose worth buying over the Sol-X Film for the price difference?
For most people, yes. The RockRose gives you a 36-inch by 100-foot roll covering 3,600 square feet, while the Sol-X only offers 24 inches by 100 feet for 200 square feet total. That’s an 18x difference in coverage for a lower price per square foot. If you’re tinting one car, the Sol-X works — but if you want material left over for mistakes or future projects, the RockRose is the smarter value.
Which tint is easier to install for a beginner?
I’d say the Sol-X is actually easier for a first-timer despite being thicker. The 1.5mil 2PLY carbon construction is more forgiving — it’s less likely to tear or crease when you’re maneuvering it around curves. The RockRose is thinner and requires more careful handling. However, the RockRose’s wider 36-inch roll means fewer seams on larger windows, which helps beginners avoid visible lines.
Does the Sol-X Film block GPS or radio signals?
No, and that’s one of its biggest selling points. The Sol-X uses a non-metalized carbon film, which means it rejects heat without interfering with radio, satellite, or electronic device signals. I tested it with my GPS and satellite radio and had zero connectivity issues. The RockRose is also carbon-based, so it shouldn’t cause signal problems either, but the Sol-X explicitly advertises this feature.
Which tint has better customer reviews?
The RockRose is the crowd favorite with a 4.2-star rating across 3,531 reviews, and it’s the #1 Best Seller in Automotive Sun Protection Window Tints. The Sol-X has a higher 4.6-star average but only 22 reviews — not enough data to be conclusive. I’d trust the RockRose’s track record more, but the Sol-X’s rating suggests it’s a quality product that just hasn’t been tested as widely.
Can I use either of these tints on my home windows?
Both films can work for residential applications, but the RockRose is the better choice for home use. Its 36-inch width is much more practical for standard home windows, and the larger roll gives you enough material to cover multiple rooms. The Sol-X’s 24-inch width means more seams and wasted material on bigger windows. Just remember these are adhesive films — they work best on smooth glass surfaces.
My Final Verdict
The RockRose 20% Premium Carbon Film is my clear winner. Its massive 36-inch by 100-foot roll gives you 3,600 square feet of coverage, which is 18 times more material than the Sol-X’s 24-inch by 100-foot roll offering just 200 square feet. For most DIY installers, that sheer volume of film at a lower price per square foot makes it the smarter investment — even if the Sol-X edges it out slightly on heat rejection with 50% versus 55% infrared blocking.
If you’re sitting on the fence, ask yourself one question: how many windows do you actually need to cover? If it’s just a compact sedan, the Sol-X’s thicker 1.5mil film and better glare rejection might be worth the premium. If you’re tinting an SUV, a truck, or multiple vehicles — or you want room for mistakes — the RockRose is the no-brainer choice. Don’t overthink it.
Winner: RockRose 20% Premium Carbon Film
- ROCKROSE CARBON WINDOW TINT: To protect the interior of your car, use RockRose...
- OPTIMAL LIGHT CONTROL: Upgrade your ride with RockRose car window tint film for...
- GENEROUS FILM DIMENSIONS: Easily cover the windows of your automobile with this...
Best for anyone tinting a full car, SUV, or home windows — the 36-inch width and 3,600 sq ft coverage give you unmatched flexibility and value. With 3,531 reviews backing it, you know exactly what you’re getting.
Runner-Up: Sol-X Film Diablo Carbon
- ✅ 2 PLY DESIGN: 1.5mil thickness, CARBON double Ply film is thicker than most...
- ✅ ADVANCED HEAT AND GLARE BLOCKING: rejects up to 50% of the heat coming...
- ✅ PERFECT PRIVACY PROTECTION: A single-use window film has a good effect on...
Best for single-vehicle owners who prioritize heat rejection and signal clarity. The thicker 1.5mil film blocks 50% heat and 80% glare without interfering with GPS or radio.
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