How to read a vinyl durability rating: vertical, horizontal, indoor, outdoor

The short answer

Read all four numbers. Outdoor horizontal is the one that decides a roof or a bonnet, and it is always the smallest. A published figure assumes normal exposure — for your country and your surface, ask the desk. A film with no published rating is not “unlimited” — it is unpublished.

Numbers per rating
4outdoor / indoor × vertical / horizontal
Smallest figure
Outdoor · Hroofs, bonnets, decks
Your climate
Askconfirmed per job by the desk

One rating, four numbers

A durability rating on a product data sheet reads like this — for example Outdoor: 3 years (Vertical) | 2 years (Horizontal); Indoor: 5 years (Vertical) | 3 years (Horizontal). That is the expected service life of the film — colour, adhesion and edge behaviour — under normal exposure, for each of four situations.

Outdoor · vertical — the film faces sideways: doors, side panels, wall signs, shop fronts. The headline number in most brochures.
Outdoor · horizontal — the film faces up: roofs, bonnets, boot lids, floor and counter tops outdoors. Always the smallest number.
Indoor · vertical — walls, glass, displays away from direct sun.
Indoor · horizontal — table tops, counters, floors indoors: abrasion and cleaning replace sunlight as the enemy.

What the number is not. It is the manufacturer’s expected life, not a warranty and not a test-standard result. It assumes correct application on a clean, compatible, well-cured surface. Extreme climates, chemical exposure and mechanical wear shorten it — see below.

Why horizontal is always shorter

A horizontal surface takes the sun at a steeper angle for more hours a day, runs hotter, and holds water, dust and bird droppings instead of shedding them. UV breaks down the plasticiser and the pigments; heat accelerates it; standing water works on the adhesive from the edge. The same film lasts visibly less on a roof than on a door — and a printed graphic, where the sun works on the ink layer, less again.

That is why a bonnet, a roof rack graphic or a boat deck should be planned on the horizontal figure, and why a polymeric film is the safer choice there: its plasticiser stays in the film longer, so it shrinks less as it ages.

Where the published figure lives — and what it assumes

Where a MAXDECAL product carries a rating, it is on the product itself: open the SKU on its series page and the durability field shows exactly what is published, split by orientation and by indoor / outdoor. We do not repeat those figures here on purpose — a number lifted out of its product and its conditions is the one that gets misread.

It assumes normal exposure. The same film has a different realistic life under a high UV index, desert heat or coastal salt than in a mild climate — the rating is one figure, the world is not.
It assumes correct application on a clean, compatible, cured surface, and normal cleaning.
It is not a warranty. Warranty terms, where offered, are agreed per project with the desk.
Unpublished is not unlimited. A product with no figure has no figure — ask the desk with the SKU and the application and you get what is known, not a guess.

Get the figure for your job, not the brochure figure. Send the desk the SKU, the country, the surface and whether it is vertical or horizontal. What comes back is the realistic life for that combination — and that is the number to plan the job on.

What shortens the life of a film

01Climate
High UV index, desert heat and coastal salt all age a film faster than the rating assumes. Tell the desk the country and the surface — the realistic life is confirmed per job, not read off a table.
02No laminate on a print
Ink sits on top of the film. Unlaminated, it fades and scuffs long before the film fails. Print film + overlaminate is one system — see the pairing guide.
03Wrong surface
Low-energy plastics, textured or chalky paint, fresh paint that has not cured: adhesion fails at the edge first. The rating assumes a clean, cured, compatible surface.
04Recesses and stretch
A calendered film pulled deep into a recess remembers the stretch and lifts. Match the film class to the curve — cast vs calendered.
05Cleaning
Pressure washers at the edge, solvents and abrasive brushes. Indoor horizontal ratings are short for exactly this reason: counters get wiped every day.
06Time on the shelf
A roll stored hot, damp or on its side loses life before it is applied. Store rolls upright or hung, in the bag, in a dry room.

Before you commit a job

Name the orientation first
Door, wall, glass → vertical. Roof, bonnet, deck, counter → horizontal. Mixed vehicle → plan the whole wrap on the horizontal figure or exclude the roof.
Name indoor or outdoor
A shop window graphic behind glass is indoor for UV but may be horizontal for cleaning. Pick the smaller of the two figures that apply.
Match the job to the film class
A one-season promo on a long-life polymeric is money wasted; a multi-year fleet on a short-life print film is a callback. Read the film class guide to place the job.
Test a patch first
Before a large or unfamiliar job, apply a small piece to the actual surface and leave it a few days — sun, rain, washing. Edges, adhesion and colour tell you more about that surface than any figure.
Ask the desk for your climate
Send the SKU, the country and the surface. What comes back is the realistic life for that job — use that, not a figure written for another climate.

Questions we get asked

Is the rating a warranty?

No. It is the manufacturer’s expected service life under normal exposure with correct application. Warranty terms, where offered, are agreed per project with the desk.

A product shows no durability. Does that mean short life?

It means not published. Ask the desk for the SKU and the application; you will get what is known, not a guess.

Does laminating extend the rating?

On a print, yes in practice — the laminate takes the UV and abrasion instead of the ink — but the published rating stays the product’s own figure. Use the lower of the print film and laminate ratings.

Send the SKU, the country and the surface. Get the figure for your job.