Quick verdict: This blue self-adhesive polyurethane foam roll is listed as 2 cm thick, 1 m wide, with a 5 m length option. Its plausible role is treating some reflections within a room—not stopping outside noise from entering or providing deep-bass control. The seller’s “fireproof” and “noise cancelling” language is not substantiated by the evidence available for this product.
How we assessed it: This is a specification-based editorial review, not a hands-on or laboratory test. We have no independent absorption curve, transmission-loss measurement or fire certification for this exact listing. The blue foam listing is an affiliate link; purchases may earn us a commission.
The distinctive feature: blue finish and 5 m roll option
The product’s practical differentiators from other generic 2 cm polyurethane foam listings are primarily its color and the specific selectable length. Neither color nor the word “studio” indicates better acoustic performance. The nominal area of a 1 m × 5 m roll is 5 square meters before cutting, assuming those are the dimensions of the purchased variant.
| Seller-listed attribute | What it means to a buyer |
|---|---|
| Polyurethane foam | Porous material potentially suitable for some reflection control; density and acoustic testing not provided |
| 2 cm thickness | Thin surface treatment; no reason to assume substantial bass absorption |
| 1 m width; 5 m length option | Up to 5 m² nominal coverage for that variant, not counting offcuts |
| Blue, self-adhesive | Visible design choice and simpler application on approved surfaces; adhesive durability unverified |
| “Flame-retardant” / “fireproof” descriptions | Do not rely on these terms without an applicable named test standard and report |
Should this be called soundproofing?
No measured sound isolation is established for this foam. Sound absorption concerns reflected energy inside a space; sound isolation concerns transmission through walls, floors, doors and windows. A thin foam roll placed on a wall cannot be assumed to block voices, traffic or music from another room. For that problem, investigate gaps, partition construction and flanking paths.
The seller also claims absorption at low, middle and high frequencies. Without a frequency-dependent absorption test for the installed assembly, that statement cannot be confirmed. Thin porous materials are typically more plausible as high-frequency reflection treatments than as low-frequency solutions. Our acoustic foam explainer helps distinguish these applications.
How to decide if a 5 m roll is worth buying
- Identify a real echo problem. Listen for harsh reflections or flutter echo, rather than assuming all room noise needs foam.
- Plan strategic positions. Treat relevant reflection points. Covering every wall is neither necessary nor automatically better.
- Measure the usable area. A nominal 5 m² roll may yield less coverage after trimming around corners, outlets and fixtures.
- Check the substrate. Test whether the adhesive works on the actual paint or finish and whether removal might cause damage.
- Obtain fire documentation. Confirm recognized fire and smoke classifications and any code requirements before installing on walls or ceilings, particularly in shared or public spaces.
- Keep clearances. Never cover vents, outlets, luminaires, heating equipment or access panels; follow local safety guidance.
For a practical mounting overview, see our foam installation guide. Seek professional guidance for regulated spaces or uncertain fire conditions.
Pros, concerns and alternatives
Potential positives
- The blue finish offers a visible aesthetic choice.
- A 1 m width with a 5 m option may suit a measured section with fewer pieces.
- Self-adhesive backing could reduce installation steps if the substrate and adhesive are compatible.
Limitations
- No independently documented NRC, absorption coefficients, STC or noise-reduction result for this listing.
- The advertised broadband and bass claims remain unverified.
- No applicable fire-test certificate was supplied in the reviewed description.
- The adhesive could leave residue or damage finishes; long-term adhesion is unknown.
Alternative decision: If the goal is bass management, consider a properly designed deeper absorber or bass trap. If the goal is blocking neighbors, prioritize sealing and assembly-level isolation. If the goal is only a bit of high-frequency echo, compare the total cost and certified performance of this roll with documented acoustic panels before ordering.
Frequently asked questions
How much surface does the blue 5 m option cover?
At the listed 1 m width and 5 m length, the nominal area is 5 m² (about 53.8 sq ft). Confirm the selected variant at checkout; offcuts reduce usable coverage.
Is this foam fireproof?
We cannot verify a fireproof or flame classification. Marketing terms are not equivalent to an independently tested rating for a particular installation.
Will it cancel voices from the next room?
There is no evidence it will. A surface foam absorber is not a substitute for a sound-isolating wall or a sealed door assembly.
Does blue foam absorb more sound than black foam?
Color alone is not evidence of performance. Compare thickness, density, mounting and measured frequency-dependent absorption; neither listing provides a controlled comparison.
Can I use it in a school or commercial studio?
Only after confirming relevant safety requirements, documented material ratings and suitability of the mounting method. Do not infer code compliance from the product title.
Bottom line
This blue 2 cm roll may be considered for a limited, safely installed reflection-control project when the dimensions and color suit the room. It is not a verified noise-blocking or bass solution. Ask for independent acoustic and fire documentation before relying on the seller’s strongest claims.