STEK vs XPEL, by what each one publishes

STEK vs XPEL: the short answer

Neither film is a mistake. STEK DYNOshield and XPEL ULTIMATE PLUS are both 8 mil polyurethane paint protection films with self-healing top coats and 10-year manufacturer warranties covering the same short list of failures. If you are trying to decide between two good shops and the film brand is the tiebreaker, the tiebreaker is thinner than you think.

What is the difference between STEK and XPEL paint protection film?

The comparison below covers the paint films. Each column reports what that manufacturer publishes about its own product, in its own terms, so the two sides are not always answering in the same units.

Two rows deserve a note rather than a shrug. XPEL publishes downloadable technical data sheets with ASTM and ISO test results and a layer-by-layer construction diagram, which is more public engineering detail than most of this industry offers, and it is genuinely to their credit. XPEL also publishes warranty transferability in plain language. We could not source an equivalent published statement from STEK on transfer, and rather than assume, we will get it in writing from STEK for any customer to whom resale matters.

Which film is hydrophobic, and does it matter in Washington?

This is the one published difference sharp enough to actually change a buying decision. STEK lists hydrophobic and anti-contamination properties on DYNOshield itself, crediting a proprietary nano-ceramic-infused top coat that is bonded to the film as a liquid. XPEL structures the same feature as a tier: its FAQ states that ULTIMATE PLUS lacks the additional hydrophobic properties, and that ULTIMATE FUSION is the film that combines the protective qualities of ULTIMATE PLUS with a hydrophobic topcoat.

So both companies sell a hydrophobic film. The difference is where it sits in the range. On a STEK quote it is in the base gloss film. On an XPEL quote it is a decision you make, and a shop quoting you ULTIMATE PLUS is not quoting the hydrophobic product.

Whether that matters depends on where the car lives. In the Puget Sound the useful part of a hydrophobic surface is not the party trick of water beading. It is that winter road film has less to bond to, so it rinses instead of clinging, so you scrub the panel less, so you put fewer swirls into it in the first place. On a car that spends nine months of the year wet, that compounds. On a garage-kept weekend car it matters much less, and the honest answer is that plenty of owners will never notice.

One related point that applies to both brands: a film with a hydrophobic top coat does not need a ceramic coating over the filmed panels to bead. Where a coating still earns its money is on the paint the film does not cover, so the whole car behaves the same way at the hose. That trade-off is worked through in full on our PPF versus ceramic coating guide.

Do STEK and XPEL warranties actually cover the same things?

Near enough that you should not choose on the headline. STEK warranties DYNOshield and DYNOmatte for 10 years against delamination, yellowing, bubbling and cracking. XPEL warranties ULTIMATE PLUS and STEALTH for 10 years against yellowing, cracking, blistering and delaminating. Those are the same four failure modes in different words.

The interesting part is what each company does past year ten, and the two took different routes. STEK publishes an extension to 12 years when its Final Coat ceramic coating is applied over the film. XPEL adds 4 years of extended coverage on ULTIMATE FUSION, but for a different list: oxidation, loss of gloss, UV damage and fading. One is a longer term on the same defects. The other is a wider net over a shorter tail. Neither is obviously better, and which one reads as valuable depends on whether you are more worried about the film failing or the film dulling.

Both warranties assume professional installation, and both are worth exactly as much as the shop that filed the paperwork. A manufacturer warranty covers the film failing. It does not cover an edge that lifted because someone rushed a wrap around a bumper lip, which is the failure customers actually turn up with.

Why does SeaWraps install STEK?

Because of how the line is shaped, not because we think XPEL owners got fleeced. Three reasons, in the order they mattered to us.

The hydrophobic top coat is standard. A customer who buys our base gloss package gets the beading and the easier winter washing without moving up a product tier, which keeps our quoting simple and keeps the cheapest thing we sell from being the version with a feature missing.

The satin film is in the same family. DYNOmatte is 8 mils, hydrophobic and self-healing on the same 10-year warranty, so a satin car and a gloss car get an identical protection story rather than two different conversations. That matters in a shop that does as many finish changes as this one.

It covers the glass. STEK makes DYNOtop for windshields, rated by STEK at 2.6 times the impact resistance of unprotected glass and compatible with ADAS cameras and sensors. Being able to protect a hood and the windshield above it out of one product line, with one warranty conversation, is worth more day to day than a spec-sheet argument.

We are a STEK Certified Installer, we train on the product, and we stock it deep enough that a full front end does not wait on a shipment. Those are operational reasons, and operational reasons are usually the real ones.

Does the film brand matter more than the installer?

No, and it is not close. Both of these films are engineered products from serious manufacturers, and in ten years of ownership the difference between them is smaller than the difference between a careful install and a fast one.

What actually decides how your car looks in year three: whether the edges were wrapped or cut on the panel, whether the bumper, mirrors and lights were disassembled where the vehicle called for it, whether the bay was clean enough that nothing landed under the film, and whether the paint was corrected before a decade of film went over it. A stray fiber trapped under an 8 mil film is permanent on any brand. So is a relief cut in the wrong place.

If you already have an installer whose finished cars you have looked at closely and liked, the brand on their roll is a smaller question than their hands, and switching shops to change brands is usually a downgrade. If you are picking a shop from scratch, ask to see a car they filmed two years ago rather than one they filmed yesterday, ask what they do about edges and disassembly, and let the film brand break the tie.

Coverage, price and what changes a quote on a specific vehicle are laid out on our paint protection film page and the PPF cost guide. City-specific detail lives on PPF in Seattle and PPF in Bellevue.

Where these numbers came from

Every specification on this page is published by the company that makes the product. Nothing here is a shop estimate, a forum claim or a figure we worked out ourselves. If a manufacturer updates a spec and this page falls behind, tell us and we will fix it.

• STEK DYNOshield, DYNOmatte and DYNOmight product pages at stek-usa.com: thickness, film construction, top coat, self-healing, hydrophobic and stain claims, and the 10-year warranty with the 12-year Final Coat extension.
• XPEL ULTIMATE PLUS, ULTIMATE FUSION and STEALTH product pages, plus the FAQ and warranty pages at xpel.com: thickness, self-healing, the hydrophobic tiering, warranty terms and transferability.
• The public XPEL ULTIMATE PLUS technical data sheet at xpel.com/product-specifications: the polyurethane construction, the clear coat, polyurethane, adhesive and liner layer thicknesses, the nominal 7.60 mil figure, and the stain and stone chip test results.
• SeaWraps pricing and STEK Certified Installer status are our own, published across this site.