If you run a small print shop or sell custom shirts online, you’ve probably noticed something frustrating lately. The rolls of vinyl cost more. DTF film is pricier. Blank shirts keep creeping up every time you order. And you’re left wondering: why now?

The short answer is the Persian Gulf. The longer answer involves a war, a blocked shipping route, and a domino effect that’s hitting every corner of the custom printing industry.

Let’s break down what’s actually happening in 2026, how it’s affecting sublimation and DTF printing, and what you as a buyer can do about it.

What’s Driving the Price Increases Right Now

Since early 2026, the conflict between the United States and Iran has escalated significantly. One of the biggest consequences? The Strait of Hormuz is effectively closed.

If you’re not familiar with geography, the Strait of Hormuz is a narrow stretch of water between Iran and Oman. About 20% of the world’s oil passes through it. When that route gets blocked, global energy markets feel it immediately. Oil prices spike. Shipping costs explode. And everything made from petroleum—which is almost everything in printing—gets more expensive.

Beyond energy, the region is a major manufacturing and shipping hub. Factories in the Middle East, India, and parts of Asia rely on routes through the Gulf. With military activity and shipping restrictions, delivery times have stretched from weeks to months. Some suppliers simply can’t get product out at all.

How Sublimation Is Getting Hit

Sublimation printing runs on three main consumables: sublimation paper, sublimation ink, and polyester blanks.

Sublimation paper is coated with specialty chemicals. Many of those chemicals come from refineries and chemical plants in the Gulf region. With production disrupted and shipping lanes blocked, paper prices have jumped 20-30% this year alone.

Sublimation ink is dye-based and petroleum-derived. When crude oil prices climb, ink climbs with it. Simple as that.

Polyester blanks—the shirts, mugs, and other items you print on—are made from synthetic fibers. Those fibers start as crude oil. Between the energy spike and shipping delays from manufacturing hubs in Asia, polyester blanks are taking longer to arrive and costing significantly more.

How DTF Printing Is Getting Hit

DTF has its own vulnerabilities. The process uses PET film, adhesive powder, and specialized inks.

PET film is plastic. Plastic comes from oil. Oil prices are up, film prices are up. The high-quality films with proprietary coatings? Even more exposed, because those coatings come from chemical suppliers affected by the conflict.

Adhesive powder (hot melt powder) is another petrochemical product. Its manufacturing requires consistent energy and raw material supply. With refineries in the region running at reduced capacity, powder prices have risen sharply.

DTF inks are water-based but contain resins and binders that trace back to petrochemicals. Same story, same pressure.

The timing is tough. DTF has exploded in popularity over the past few years, creating huge demand for consumables. When supply gets squeezed at the same time, prices get volatile fast.

What About Shipping?

Even if a product is made in China or Vietnam, it still needs to travel. The conflict in the Persian Gulf has disrupted major shipping routes. Many cargo vessels now avoid the region entirely, taking longer, more expensive detours. Shipping containers that used to cost $2,000 now cost $8,000 or more. Those costs get passed down the chain—from manufacturer to distributor to your local print shop to you.

What This Means for You as a Buyer

If you’re buying custom prints, you’re feeling this in your wallet. Here’s what’s actually happening behind the prices you’re paying.

Your supplier’s costs are up across the board. The DTF film roll that cost $50 last year might be $70 now. Blank shirts have gone up 15-25% depending on the style. Your printer isn’t trying to squeeze you—they’re passing on real increases they can’t absorb.

Lead times are longer. When shipping routes are disrupted, containers sit in ports longer or never arrive. Your printer might not be slow; they might be waiting on materials that are stuck on a ship somewhere.

Small batches cost more per unit. This was always true, but now the gap is wider. Fixed costs like shipping and handling hit small orders harder than ever.

How to Protect Yourself

You can’t control geopolitics. But you can make smarter buying decisions in this environment.

Order in bigger batches. If you know you’ll need 200 shirts over the next few months, order them now. Consolidating orders saves on shipping and locks in current pricing before the next increase hits.

Plan way ahead. The days of ordering custom shirts with a one-week turnaround are shaky right now. If you need items for a summer event, order in early spring. If you need holiday stuff, think about it in summer. Give your printer breathing room.

Talk to your printer. Ask them what they’re seeing. A good supplier will tell you if a price hike is coming or if certain products are getting hard to source. Build a relationship so you’re not just a transaction.

Consider alternatives. If standard polyester shirt prices are up, look at cotton or blends. If a particular film is expensive, ask if your printer offers options. Sometimes the alternative isn’t worse—it’s just different and more available.

Budget for volatility. Assume prices will continue to fluctuate while the conflict continues. Build a buffer into your pricing so you’re not caught off guard.

The Bottom Line

The war in the Persian Gulf and the closure of the Strait of Hormuz aren’t going away overnight. Energy prices, shipping routes, and manufacturing stability are all tied to events outside anyone’s control.

But you can control how you buy. Be strategic. Order ahead. Build relationships with suppliers who communicate. And understand that the price you paid last month might not be the price you pay next month—not because anyone’s greedy, but because the world changed.

The businesses that adapt to this new reality will keep running. The ones that don’t will struggle. Choose to be the one that adapts.