What Blister Prevention is for
Plastic glazing such as acrylic and polycarbonate can release gases that blister a film applied directly to it. Blister Prevention is applied first as a barrier, and the chosen film goes on top.
This is a specialty job, not a standard window film. It depends on the plastic, its coating and the film going on top.
Appearance and tradeoffs
- Intended for uncoated acrylic and polycarbonate on flat surfaces; not recommended for curves.
- Interior application only, per XPEL's bulletin. A waiting period applies before the top film goes on.
- On its own it provides little solar control (39% UV rejection on the master sheet).
Documented Blister Prevention options
1 published option. The shade number in a product name is not its measured light transmission.
| Product | VLT | TSER | UV | Glare | Refl. ext. | Refl. int. | SHGC | Applied |
|---|---|---|---|---|---|---|---|---|
| Blister PreventionXVBLS | 89% | 16% | 39% | 0% | 8% | 8% | 0.84 | Conditional |
Full technical specifications (all 15 master-sheet values)
| Product | VLT | Refl. ext. | Refl. int. | Solar trans. | Solar refl. | Solar abs. | UV | TSER | IRR | IRER | SC | SHGC | U | Emiss. | Glare |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blister Prevention | 89% | 8% | 8% | 80% | 8% | 12% | 39% | 16% | N/A | 20% | 0.96 | 0.84 | 1.03 | 0.86 | 0% |
Nominal values with film applied to 1/8 in (3 mm) glass, from the current XPEL VISION master specification sheet (R0326V3). For guidance only—results on your glass differ. N/A means the value is not published. Master sheet (PDF), opens in a new tab
Specification sheets
XPEL's master sheet lists this product as Blister Prevention; a technical bulletin issued 09/03/2026 describes Blister-Free Film for acrylic and polycarbonate. We show the master-sheet product and link both documents, without treating them as two separate products. Confirm the exact product, top film and warranty terms in the proposal.
Blister Prevention questions
Can any XPEL film go on plastic?
No. The film-to-glass chart excludes plastic and polycarbonate except for Blister Prevention film. The top film and coverage must be confirmed for your project.
Is Blister Prevention used outdoors?
XPEL's bulletin describes interior-only use and does not recommend exterior applications.
Related solutions
Compare with
- DecorativeWhite Frost, Dusted Crystal, White Out and Black Out for privacy and design.4 options · Interior
- Safety & SecurityClear and tinted films that help hold broken glass together.8 options · Conditional
- Clear View CeramicLow-reflectance ceramic film for daylight and a natural look.3 options · Interior