How to Apply HGV and Lorry Graphics: Step-by-Step Guide

Applying vinyl graphics to an HGV or lorry follows the same fundamental process as applying any transfer paper vinyl. Still, a working lorry presents specific challenges that a campervan or car does not. The surfaces may be older, the area you’re working on may be above head height, and the vehicle is exposed to harsher conditions than most leisure vehicles. This guide covers everything you need to know before you start.

For an overview of how transfer paper vinyl works in general, see our campervan decals application guide, as the core technique is the same. This guide covers the specifics of applying graphics to HGVs and lorries across all positions.

What’s in the package

Every PolyWard HGV graphic comes as a single piece with transfer paper already applied to the front face. The three-layer structure is the same as all PolyWard vinyl products:

• Backing paper – the release liner on the back. Remove this immediately before application.
• The graphic itself – the vinyl design.
• Transfer paper – on the front face. This stays on during application and is removed once the graphic is stuck to the surface.

Before doing anything else, lay the graphic out flat on a clean surface and firmly squeegee the front face. This bonds the vinyl to the transfer paper. If any section of the graphic has already separated from the transfer paper before you start, it can peel away with the backing paper during application rather than staying in place. A firm pass with a card or squeegee across the whole graphic prevents this and takes thirty seconds. Do not skip it.

Surface preparation – this matters more on a working vehicle

A lorry cab accumulates diesel residue, road grime, tar, and silicone from cleaning products in a way that a leisure vehicle does not. All of these reduce adhesion. Thorough surface preparation is more important on an HGV than on any other vehicle type.

Step 1: Wash the area. Clean the surface where the graphic will sit with a good-quality panel cleaner or traffic film remover. Remove diesel residue, road grime, and any wax or polish buildup. Rinse thoroughly and allow to dry completely.

Step 2: Wipe with isopropyl alcohol. After washing, wipe the application area with isopropyl alcohol (IPA). IPA removes any invisible residue left by cleaning products, wax, or silicone-based dressings. This step is not optional on an HGV; it ensures the adhesive bonds to the paint rather than to a film of contamination. Allow the IPA to evaporate fully before applying the graphic.

Step 3: Check the paint condition. Run a hand over the prepared area. On older cabs, paint can be chalky, faded, or beginning to lift at the edges of previous graphics. If the paint feels rough or powdery, the graphic adhesive will bond more to the paint surface than to the underlying metal, and the paint may lift when the graphic is eventually removed. If the cab paint is in poor condition, have it assessed before applying new graphics.

Temperature: The ideal application temperature is between 10°C and 20°C. Avoid applying in direct sunlight. A dark cab panel in summer sun can reach surface temperatures well above 30°C even on a mild day, which causes the adhesive to activate too quickly and reduces your working time. If working outside in warm weather, park the vehicle in shade for at least an hour before starting.

Working at height, ladder safety

Graphics for the top of the windscreen, the panel above the windscreen, or the upper sections of the cab sides require working at height. This is a specific consideration for HGV graphics that does not apply to car or campervan decals.

Use a ladder rated for the task. A domestic stepladder is not appropriate for working at the height of an HGV cab top. Use a trade-rated stepladder or A-frame ladder that reaches comfortably above the working height without requiring you to stand on the top step.

Position the ladder correctly. The ladder should be stable on firm, level ground. If working in a yard or on a slope, use a ladder with adjustable feet or pack the lower foot appropriately. Do not rest the ladder against the vehicle in a way that could scratch the paintwork or cause the ladder to slide — position it so you can reach the working area without leaning.

Work with a second person where possible. Having someone hold the base of the ladder while you work above head height is good practice. A second person is also useful for checking the graphic position from the ground before you commit to the application. At height, it is difficult to judge alignment accurately from the ladder.

Do not overreach. Reposition the ladder rather than stretching sideways to reach an area. Overreaching at height is the most common cause of ladder accidents. For a wide graphic spanning the full cab top or windscreen, you will need to move the ladder along as you work section by section.

If working above head height is not practical for you: consider whether a mobile scaffold platform or tower is more appropriate, particularly for larger or more complex graphics. This is available from most tool hire companies and provides a more stable working surface than a ladder for graphics work requiring both hands to be free.

Choosing your application method

PolyWard HGV graphics are available in a range of sizes, from smaller accent pieces that can go on a door or rear panel, to long, wide graphics designed to span the top of the windscreen or run across the full width of the cab above it. The application method depends on the size and position of the graphic.

For smaller graphics (door panels, rear cab, accent pieces):
Dry application works well. Peel the backing paper and apply directly to the prepared surface. Firm it down with a squeegee or bank card. No anchor point or soapy water needed for pieces you can manage in one go.

For larger graphics (full cab width, windscreen top bar, long slogan graphics):
Use the wet application method and consider using anchor points with section-by-section application. The graphic is too long to apply all at once without the risk of misalignment or the vinyl folding back on itself mid-application.

Dry application for smaller graphics

Step 1: Position and check alignment. Hold the graphic in position without removing the backing paper. Step back and confirm the position is correct, particularly the height and horizontal alignment. For graphics on the cab side or door, use a tape measure or a piece of masking tape as a level reference line before committing.

Step 2: Peel the backing paper. Remove the backing paper from the graphic, keeping the transfer paper on the front face. Handle the graphic carefully; the adhesive is now exposed.

Step 3: Apply from one edge. Starting from one edge or corner, bring the graphic into contact with the surface and press down firmly as you go. Work across the graphic smoothly, pressing with a card or squeegee as you move.

Step 4: Squeegee the full graphic. Once applied, go over the whole graphic firmly with a card or squeegee. Work from the centre outward to the edges. This ensures full contact between the adhesive and the surface.

Step 5: Remove the transfer paper. Peel the transfer paper away slowly at a low angle, approximately 45 degrees. Keep a card to hand. If any section of the vinyl tries to lift with the transfer paper, stop, press it back down firmly, and continue more slowly.

Anchor point method for large and long graphics

For graphics spanning the full cab width or running across the top of the windscreen, the anchor point method prevents misalignment over a long panel. You can use either the dry or wet method for the application itself; both work well with the anchor point technique, though we do recommend using soapy water for full-width banners.

Step 1: Position the full graphic with masking tape.
Without removing any backing paper, position the graphic on the surface and fix it in place along the top edge with strips of masking tape. This holds the graphic in the correct position while you work.

Step 2: Set a central anchor point.
Press a small piece of masking tape through the centre of the graphic firmly onto the surface. This is your reference point; everything applies outward from here in two halves.

Step 3: Check alignment from the ground.
Before any backing paper is removed, step back and check that the graphic is level and sitting correctly. For graphics at height, have your second person check from ground level. This is the point to make adjustments; once the backing paper starts coming off, repositioning the whole graphic becomes very difficult.

Step 4: Choose your application method:

Dry section-by-section: faster, good for confident applicators:
Peel the backing paper away from one half of the graphic, starting from the central anchor point and working toward one end. Apply and firm down that half with a card or squeegee before moving to the next section. No water involved, once the vinyl contacts the surface, it grips immediately, so work methodically and don’t rush. Repeat for the second half from the anchor point outward.

Wet section-by-section: more forgiving, recommended for very long graphics:
Prepare a mild soapy water solution in a spray bottle. A few drops of washing-up liquid in water, not foamy. Peel the backing paper from one section at a time rather than the whole half at once. Lightly mist that section of the vinyl and the corresponding area of the cab surface with soapy water, then apply and squeegee that section firmly before peeling the next. The soapy water gives a brief repositioning window before the adhesive grips; useful on a long panel where small alignment errors can compound. Work outward from the anchor point in manageable sections, one at a time.

Do not wet the entire graphic at once; the vinyl is too long and thin to manage as a single wet application.

Step 5: Squeegee the full graphic.
Once both halves are applied, go over the complete graphic with firm, overlapping strokes from centre outward. For the wet method, use a firm up-and-down motion to push water out toward the edges. Work methodically; rushing it will trap water that takes longer to clear.

Step 6: Remove the transfer paper.
Peel slowly at a low angle. Keep a card to hand for any sections that try to lift. At height, this is easier with two people, one peeling, one ready to press down any lifting sections. For the wet method, the transfer paper can be slightly harder to remove until the water has mostly dispersed. If it feels reluctant, leave it for ten minutes and try again rather than forcing it.

Step 7: Allow to dry.
For the wet method, allow the graphic to dry fully before edge sealing. Water needs to evaporate from under the vinyl before applying heat.

Edge sealing: more important on an HGV than any other vehicle

Once the transfer paper is removed, run a heat gun or hair dryer on a low setting along all edges of the graphic. Keep the heat moving; do not concentrate it on one spot.

Edge sealing is particularly important on HGV graphics for three reasons: the vehicle travels at motorway speeds, which creates sustained airflow across all exposed edges, washing in haulage yards typically involves pressure washing at close range, and the vehicle is in use year-round in all weather conditions. Unsealed edges on a working lorry are significantly more likely to lift over time than on a leisure vehicle.

Allow the graphic to cure for at least 48 hours before washing the vehicle. Avoid pressure washing directly at the graphic edges for the first week.

Dealing with bubbles

Small bubbles often disappear within a few days as the adhesive cures. Do not panic about minor bubbles immediately after application.

For persistent bubbles, use a fine pin or needle to make a small puncture at the edge of the bubble, then press the air out gently. The puncture will be invisible once the vinyl settles.

Removing HGV graphics

When it is time to replace or remove graphics, use a heat gun on a low setting to soften the adhesive and peel slowly at a low angle. On older vehicles with aged or weathered paint, removal carries a higher risk of lifting paint than on a newer vehicle, as the adhesive bonds to the paint surface, which over time can become more fragile than the adhesive.

For this reason, graphic removal from older vehicles is best done slowly and with more heat than you might need on newer paintwork. Any adhesive residue after removal comes off cleanly with a specialist adhesive remover such as Sticky Stuff Remover or IPA.

If you are concerned about the paint condition before removal, test on a small, inconspicuous corner of the graphic first.

Frequently asked questions

Does it matter what position I put the graphic in?
No, PolyWard HGV graphics come in multiple sizes to give you flexibility over placement. Common positions include the cab door, the side panel above the steps, the windscreen top, the panel above the windscreen, and the rear cab panel. Choose a position that works for your vehicle and the graphic size you’ve ordered.

Can I apply the graphic myself, or do I need a professional?
Most HGV graphics can be applied without professional help. The main exception is very large graphics at height. These benefit from a second person for alignment checks and ladder safety. Smaller graphics on the door or lower cab panels are a straightforward one-person job.

Do I need scaffolding to apply graphics to the top of the windscreen?
A stable trade-rated stepladder is sufficient for most windscreen top and cab top applications. For very large graphics where you need both hands free and to move along the panel, a mobile scaffold platform gives a more stable working surface and is available from most tool hire companies.

How long will the graphics last on a working lorry?
Premium outdoor vinyl is rated for 5-7 years of outdoor exposure. A working HGV is exposed to harsher conditions than most vehicles, so correct surface preparation and edge sealing at installation are the main factors in longevity. Graphics applied to a properly prepared surface with sealed edges will outlast those applied without these steps by a significant margin.

Can I pressure wash the vehicle after fitting graphics?
Wait at least 48 hours after fitting before washing. Avoid pressure washing directly at graphic edges for the first week. After the curing period, normal pressure washing is fine, though directing a pressure washer jet at the edge of a graphic at close range is best avoided throughout the life of the graphic.

Will the graphics damage my paintwork?
Not on sound paintwork. On older vehicles with aged or weathered paint, removal carries some risk of paint lifting, which is why surface condition should be assessed before application. Graphics do not damage the paint during the application itself.

Do you offer custom graphics?
Get in touch via the contact page — we can discuss custom requirements directly.

See the full range of PolyWard HGV and lorry graphics — UK-made from premium outdoor vinyl, available in multiple sizes for flexible placement across any part of your vehicle.