How to Choose the Right Poster Material for Your London Printing Project

You've got your design ready. You know the size you need. But then comes the question that trips up more people than you'd expect: which material should I print on? It's a fair question, and the honest answer is that getting the material right makes an enormous difference to how your finished poster looks, how long it lasts, and whether it does the job you need it to do.

At DiGraphics, we offer nine specialist poster materials across our full range of large format poster printing in London. This guide walks you through each one so you can make a confident, informed decision for your next project.

The Golden Rule: Match the Material to the Environment

Before anything else, ask yourself: where is this poster going to live? Indoors or outdoors? In a lightbox or on a flat wall? Behind glass or exposed to the elements? The answers to these questions will immediately narrow your options down significantly, and from there it's about achieving the right visual finish for your brand and application.

Indoor Poster Materials – Which to Choose?

Satin Poster Printing – The Safe, Brilliant All-Rounder

If you're printing for an indoor environment and you're not sure which material to choose, satin is almost always the right answer. It has a subtle mid-sheen finish that sits beautifully between gloss and matt, enhancing colour and contrast without the harsh reflections you can get from a fully glossy surface. It's the most widely used indoor poster material in the UK for a reason.

Satin works beautifully for retail displays, event graphics, exhibition walls, venue promotion, hospitality signage, and general indoor advertising. Browse our A3 satin, A2 satin, A1 satin, and A0 satin options.

Gloss Poster Printing – Maximum Colour Impact

If your poster design is photo-heavy, features deep, saturated colours, or simply needs to shout from across the room, gloss is your material. The high-shine surface amplifies colour vibrancy in a way no other material can match, making it particularly effective for food photography, fashion campaigns, beauty advertising, and any design where image quality is front and centre.

The one consideration with gloss is reflectivity. In environments with strong ambient lighting or direct daylight, gloss posters can show glare. It's worth thinking about placement before committing. Explore A3 gloss, A2 gloss, A1 gloss, and A0 gloss.

Matt Poster Printing – Refined, Non-Reflective, Professional

Matt is the choice of professionals who want their print to communicate quality without competing with the environment around it. The non-reflective surface means your poster looks equally good under any lighting condition, and it has a premium, gallery-like feel that works particularly well for corporate, healthcare, educational, and artistic applications.

Matt is also the best choice when your design features a lot of text, as the non-reflective surface makes text consistently legible from any angle. View our A3 matt, A2 matt, A1 matt, and A0 matt posters.

Specialist Indoor Materials

Backlit Poster Printing – For Illuminated Lightbox Displays

If your poster is going into a backlit lightbox — the kind you see in airport corridors, high street shop windows, and exhibition halls — you need a material that's specifically designed to transmit light rather than reflect it. Backlit poster film does exactly this, allowing the light to pass through evenly and deliver vivid, luminous colour.

Using standard paper in a lightbox produces a washed-out, uneven result. Always use backlit film when the display is illuminated from behind. Order A3 backlit, A2 backlit, A1 backlit, or A0 backlit from DiGraphics.

Grey Back Blackout Poster Printing – Total Opacity

Grey back blackout is a specialist material with a totally opaque grey backing that prevents any light from passing through the poster. This makes it ideal for double-sided lightbox applications, window displays where you don't want the inside of your premises visible through the poster, or any scenario where full opacity is critical.

It's also used in environments where two posters are displayed back-to-back, as the blackout layer prevents the reverse image from showing through. Available in A3, A2, A1, and A0.

Outdoor Poster Materials

Waterproof Poster Printing – Built for the British Weather

If your poster is going outside, full stop, you need waterproof poster media. Our 440gsm waterproof material is engineered to withstand rain, condensation, UV exposure, and the general humidity of an outdoor London environment. It won't curl, the ink won't bleed, and the image won't degrade the way standard paper inevitably would outdoors.

Waterproof posters are used extensively for outdoor A-boards, market stall signage, festival displays, construction hoarding graphics, outdoor event promotion, and window advertising in environments where there's significant moisture risk. Order A3, A2, A1, or A0 waterproof posters from DiGraphics.

Self-Adhesive Vinyl Poster Printing – Stick It Anywhere

Self-adhesive vinyl is one of the most versatile materials in large format printing. The 100-micron vinyl has a pressure-sensitive adhesive backing, meaning it adheres directly to any smooth, clean surface — glass, painted walls, tiled surfaces, metal panels, and more.

It's ideal for shop window advertising, vehicle graphics, wall displays, and any application where you want the poster to become part of the surface rather than sitting in a frame. It's also repositionable during application, giving you a small window to adjust placement before it sets. Available in A3, A2, A1, and A0.

The Sustainable Choice

PVC-Free Eco Poster Printing – Great Results, Lower Impact

Sustainability matters more than ever to London businesses, and an increasing number of our customers specifically request materials that align with their environmental commitments. Our PVC-Free poster range is printed on a 330gsm media that eliminates PVC entirely while still delivering outstanding colour fidelity and print quality.

It's the right choice for businesses with sustainability policies, organisations targeting eco-conscious audiences, and anyone who simply wants to reduce the environmental footprint of their print marketing. Available in A3, A2, A1, and A0.

Quick Material Selector – At a Glance

• Indoor general use – Satin
• Photo-heavy or vibrant colour – Gloss
• Corporate, gallery, or text-heavy – Matt
• Illuminated lightbox – Backlit film
• Window display, full opacity needed – Grey Back Blackout
• Outdoor or moisture-exposed – Waterproof
• Window or wall application – Self-Adhesive Vinyl
• Eco-conscious printing – PVC-Free

Still Not Sure? Ask Us

If you're still not certain which material is right for your job, the quickest way to get a definitive answer is to WhatsApp us. Describe where your poster is going, what it's for, and what you want it to achieve — and we'll tell you exactly which material to go for. It takes two minutes and could save you the cost of a reprint.

💬 WhatsApp Us – Material Advice & Quotes

Or browse our full product range at Large Format Poster Printing – DiGraphics London.