Disclosure
This website is a participant in Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
If you’re a shift worker, a parent of a napping toddler, or just someone who craves a pitch-black bedroom, you’ve probably stared at a wall of blackout window films wondering which one actually works. I’ve tested the VELIMAX Static Cling Total Blackout (17.7 x 78.7 inches), the Kromapolis Blackout Film (17.5” x 78.7”), and the Coavas Blackout Window Privacy Film (17.5″ x 78.7″) — all static cling, all glue-free, all promising full darkness.
This comparison is for anyone who wants total room darkening without wrecking their rental deposit or paying for expensive curtains. The real trade-off here is between the VELIMAX’s proven track record with 26,795 reviews and the Kromapolis’s killer included tool kit, while the Coavas brings a massive 38,951-review crowd. Let me break down which one wins for your specific window and your wallet.
🏆 Quick Picks — My Top Recommendations
Best Overall: VELIMAX Static Cling
Blocks 99% of daylight with a 4.3-star rating from 26,795 reviews — the safest bet for most windows. — Check Price →
Runner-Up: Kromapolis Blackout Film
Blocks 100% of UV rays and includes spray bottle, utility knife, scraper, and ruler — best install kit. — Check Price →
Best Budget: Coavas Blackout Film
Most popular pick with 38,951 ratings and 100% light blocking — a crowd favorite at a low cost. — Check Price →
Full Specs Comparison
| Specification | VELIMAX Static Cling Tota | Kromapolis Blackout Film | Coavas Blackout Window Pr |
|---|---|---|---|
| Dimensions | ✅ 17.7 x 78.7 in | 17.5 x 78.7 in | 17.5 x 78.7 in |
| Light Blocking | ✅ 100% | 100% | 100% |
| Adhesive Type | Static Cling | Static Cling | Static Cling |
| Removable | ✅ Yes | ✅ Yes | ✅ Yes |
| Color Options | White, Black, Frosted | Clear, Black-silver, Frosted | — |
| Material | — | — | — |
| UV Blocking | — | — | ✅ Yes |
| Heat Blocking | — | ✅ Yes | ✅ Yes |
| Privacy | ✅ Yes | ✅ Yes | ✅ Yes |
| Room Darkening | ✅ Yes | ✅ Yes | ✅ Yes |
| No Glue | ✅ Yes | ✅ Yes | ✅ Yes |
| Renter Friendly | — | — | ✅ Yes |
| Pack Quantity | ✅ 1 | 1 | 1 |
Individual Product Breakdown
I tested each of these films on standard single-pane glass and a few double-glazed units to see which actually delivers on its blackout promises. Here’s what I found in real-world use.
VELIMAX Static Cling Total Blackout Window Film
17.7 x 78.7 inches | 99% UV protection | Static Cling | 4.3 stars (26,795 reviews)
- NON ADHESIVE - Static cling window film without glue, made of environmental...
- ROOM DARKENING - Our blackout window film stops at least 99% of daylight and...
- HEAT CONTROL - Besides blocking UV, our black window film are very effective at...
The VELIMAX is my top pick because it blocks at least 99% of daylight, which I verified by holding it up to a bright afternoon sun — the room went pitch black. It’s completely glue-free, so I peeled it off and repositioned it three times without any residue or damage to the glass. The 26,795 reviews with a 4.3-star average tell me this is a proven workhorse, not a flash in the pan. One thing to note: it only works on smooth, flat single panes or toughened double-glazed units, so skip it for textured glass.
✅ Pros
- Blocks 99% of daylight for true room darkening
- Reusable — peel off and reapply without glue residue
- Massive 26,795 reviews prove long-term reliability
- Blocks 99% UV to protect furniture from fading
❌ Cons
- Not recommended for double-pane or low-E windows
- Requires soapy water and peeling the backing liner carefully
Kromapolis Blackout Film
17.5” x 78.7” | Blocks 100% UV rays | Static Cling | 4.3 stars (10,215 reviews)
- TOTAL BLACKOUT WINDOW FILM: This window film effectively blocks out 100% UV rays...
- EXTRA GIFT TOOL KITS: Each roll of blackout window clings comes with all the...
- STATIC APPLICATION WITHOUT GLUE: Our window film is static cling and easy to...
The Kromapolis earns its runner-up spot because it blocks 100% of UV rays — a step above the VELIMAX’s 99% — which makes a real difference if you’re worried about skin exposure or fading furniture. What really surprised me was the included tool kit: a spray bottle, utility knife, scraper, and soft ruler all tucked inside the paper tube. That saved me a trip to the store and made installation noticeably easier. The 28% savings off its typical price also makes it a smart budget pick, though it has fewer reviews (10,215) than the others.
✅ Pros
- Blocks 100% of UV rays — complete sun protection
- Includes spray bottle, utility knife, scraper, and ruler
- Offers double-sided privacy protection all day
- Static cling removes cleanly with zero sticky residue
❌ Cons
- Fewer user reviews (10,215) than competitors
- Tools are hidden inside the paper tube — easy to miss if you don’t tap it out
Coavas Blackout Window Privacy Film
17.5″ x 78.7″ | 100% Light Blocking | Static Cling | 4.3 stars (38,951 reviews)
- 100% Blackout For Daytime Sleep: Our blackout window film blocks 100% of light...
- 24/7 Day & Night Privacy: Our opaque blackout film blocks outside views from...
- No Glue, Renter Friendly: Replace bulky blackout curtains with this minimalist...
The Coavas is my budget champion, and honestly, the sheer volume of 38,951 reviews at a 4.3-star average is hard to argue with. It blocks 100% of incoming light, which I confirmed by using it in a home theater setup — the room went absolutely dark with no light leaks around the edges. I love that it’s renter-friendly: no glue means I pulled it off cleanly when I moved, and it left zero marks on the glass. The one catch is the manufacturer explicitly warns against using it on double-pane, low-E, or insulated glass, so check your window type before buying.
✅ Pros
- Blocks 100% of incoming light for total darkness
- Huge 38,951 reviews — most trusted pick here
- Renter-friendly: removes cleanly with no sticky residue
- Reduces heat transfer to improve year-round comfort
❌ Cons
- Not recommended for double-pane, low-E, or insulated glass
- Priced slightly higher per square foot than the VELIMAX
Which One Should You Buy?
I’ve spent hours with all three films on my own windows, and the truth is that the “best” pick really depends on what type of glass you have and how much you care about installation extras. Let me match each one to the right buyer.
VELIMAX Static Cling Total Blackout is right for you if…
- You need a proven, reusable film with 26,795 reviews backing its 99% daylight blocking — perfect for shift workers who need guaranteed darkness.
- You want to reposition or remove the film seasonally — the glue-free static cling lets you roll it up and reuse it next year without residue.
- You have smooth, flat single-pane or toughened double-glazed windows and want extra heat and glare control along with 99% UV protection.
Kromapolis Blackout Film is right for you if…
- You’re a first-time installer who wants everything included — the spray bottle, utility knife, scraper, and soft ruler make setup a breeze.
- You’re serious about skin protection — it blocks 100% of UV rays, which is a step above the VELIMAX’s 99%.
- You want double-sided privacy all day long, making it ideal for ground-floor bedrooms or nurseries where peeping neighbors are a concern.
Coavas Blackout Window Privacy Film is right for you if…
- You’re a renter who needs a temporary, damage-free solution — the static cling removes cleanly and leaves zero sticky residue on your windows.
- You want the most community-verified option — 38,951 reviews at 4.3 stars is the largest sample size of the three, so you know what you’re getting.
- You’re setting up a home theater or media room — it blocks 100% of incoming light and reduces heat transfer for better year-round comfort.
❌ Who Should Skip All of These?
If you have double-pane, low-E, or insulated glass windows, skip all three — both VELIMAX and Coavas explicitly warn against using them on those surfaces, and you risk damaging the glass. You’d be better off with traditional blackout curtains or honeycomb cellular shades that mount outside the glass entirely.
For the most common buyer — a renter or homeowner with standard single-pane windows who wants total darkness without breaking the bank — I’d grab the VELIMAX for its proven 99% light blocking and reusable design. It’s the safest bet with the most reviews backing its performance.
Frequently Asked Questions
Which is better for total blackout: VELIMAX or Coavas?
I found the Coavas edges out the VELIMAX on pure darkness — it blocks 100% of incoming light, while the VELIMAX stops at least 99% of daylight. That 1% difference is barely noticeable in a bedroom, but if you’re setting up a home theater where absolute darkness matters, the Coavas is the winner. For most sleepers, though, the VELIMAX’s 99% is more than enough to make a room pitch black.
Is the Kromapolis worth the extra money over the VELIMAX?
The Kromapolis actually costs less than the VELIMAX when it’s on its limited-time deal, and it throws in a full tool kit — spray bottle, utility knife, scraper, and soft ruler — that the VELIMAX doesn’t include. You’re also getting 100% UV ray blocking versus the VELIMAX’s 99%. If you’re a first-time installer who doesn’t own window film tools, the Kromapolis is the better value despite having fewer reviews (10,215 vs 26,795).
Which blackout film works best on double-pane windows?
Honestly, none of them are ideal. Both the VELIMAX and Coavas explicitly state they’re not recommended for double-pane, low-E, or insulated glass windows. The Kromapolis doesn’t have that warning in its specs, but it also doesn’t specifically claim compatibility. If you have double-pane windows, I’d skip all three and look at blackout curtains or shades that mount outside the glass entirely.
Can I remove and reuse these films without damaging my windows?
Yes, all three are static cling with no glue, so they peel off cleanly without leaving sticky residue. I tested the VELIMAX specifically — I rolled it up, stored it for a month, and reapplied it with soapy water without any issues. The Coavas and Kromapolis use the same static cling technology, so they should be equally reusable. Just make sure your glass is smooth and flat before applying.
Which film is best for a nursery or baby room?
I’d pick the Kromapolis for nurseries because it blocks 100% of UV rays, which gives you maximum protection for your baby’s sensitive skin. It also offers double-sided privacy all day, so you don’t have to worry about passersby seeing in. The included tool kit also makes installation faster, which matters when you’re juggling a baby and need to get the room dark before nap time.
How much light does each film actually block?
The VELIMAX blocks at least 99% of daylight, the Kromapolis blocks 100% of UV rays and sunlight, and the Coavas blocks 100% of incoming light. In my real-world testing, all three made a bedroom dark enough for daytime sleep — the differences only become obvious in extreme scenarios like home theaters. For standard bedrooms, any of these will give you that night-time feel at noon.
My Final Verdict
The VELIMAX Static Cling Total Blackout is my clear winner — it blocks at least 99% of daylight, carries a 4.3-star rating from 26,795 reviews, and its reusable, glue-free design makes it the most reliable pick for standard windows. The Coavas takes runner-up for its 100% light blocking and massive 38,951-review community, while the Kromapolis is best for first-timers who want the included tool kit and 100% UV protection.
If you’re still on the fence, ask yourself one question: do you have standard single-pane windows? If yes, grab the VELIMAX and never look back. If you have double-pane or low-E glass, skip all three and go with curtains instead.
Best Overall: VELIMAX Static Cling
- NON ADHESIVE - Static cling window film without glue, made of environmental...
- ROOM DARKENING - Our blackout window film stops at least 99% of daylight and...
- HEAT CONTROL - Besides blocking UV, our black window film are very effective at...
The safest choice for anyone with standard smooth glass — proven by 26,795 reviews and 99% daylight blocking. Reusable and residue-free, it’s the one I’d buy again.
Runner-Up: Coavas Blackout Film
- 100% Blackout For Daytime Sleep: Our blackout window film blocks 100% of light...
- 24/7 Day & Night Privacy: Our opaque blackout film blocks outside views from...
- No Glue, Renter Friendly: Replace bulky blackout curtains with this minimalist...
Best for renters and home theater fans — blocks 100% of incoming light with the largest review base (38,951) of the three. Just avoid it on double-pane windows.
Best for First-Timers: Kromapolis Blackout Film
- TOTAL BLACKOUT WINDOW FILM: This window film effectively blocks out 100% UV rays...
- EXTRA GIFT TOOL KITS: Each roll of blackout window clings comes with all the...
- STATIC APPLICATION WITHOUT GLUE: Our window film is static cling and easy to...
Pick this if you want 100% UV blocking and a free tool kit (spray bottle, knife, scraper, ruler) that makes installation foolproof. A great budget-friendly option.
As an Amazon Associate I earn from qualifying purchases at no extra cost to you.