Quick answer: To switch HTV suppliers in the middle of a busy season without stopping the press, don't move everything at once. Size a first order that covers your one or two highest-volume colors for your reorder lead time plus a two-week buffer. Run parallel stock: keep the old film on its own labeled shelf and finish open repeat jobs on it, while new jobs go to the new film. Re-save every preset (press, cutter and job ticket) under the new film's name before the first production job, so nobody presses new vinyl on old settings. Then move the rest of your colors in waves, each one only after a test press, a wash test and a matching reorder. Done this way, a mid-season switch takes three to six weeks and never puts a customer order at risk.
Below: what to move first, how to size the order, how to run two films side by side and a four-week schedule.
Why a mid-season switch is different
Switching in January, when the press is quiet, is easy. Switching in September, with team orders, school spirit wear and holiday programs stacked up, is a different job. You can't stop to test, you can't afford a color that doesn't match last month's run, and you have half-used rolls of the old film on the shelf that you've already paid for.
Most shops don't choose the timing. A supplier closes, a brand changes hands, or the old source runs out of your core colors with no date for a restock. If that's what pushed you, our ThermoFlex supplier change guide and Heat Transfer Warehouse alternative guide cover the background. This guide assumes you've already picked the new supplier and need to get production onto it without a gap.
The goal is simple: no job ever runs on a film you haven't tested, and no repeat order ever changes film halfway through. Everything below serves those two rules.
Step 1: Audit what you have and what you owe
Before you order anything, spend 30 minutes on two lists.
List one: open stock. For every color of the old film, write down how much is left (full rolls plus a rough yardage on open rolls) and how fast you use it. Your cutter software's job history or your last three months of orders will give you a usage rate in yards per week.
List two: committed work. Every job that's quoted, in production or scheduled, with its color, piece count and due date. Flag the ones that are repeat programs: team uniforms with a reorder coming, corporate accounts with an approved color, your own product line. Those are the jobs where a shade or finish change will get noticed.
Put the two lists side by side and you get a third number for each color: weeks of old stock left against weeks of committed work. That tells you which colors need the new film soon and which can run out the old stock first.
| Color situation | What to do |
|---|---|
| Old stock runs out before committed work does | Move this color in the first wave |
| Old stock covers committed work with room to spare | Run the old stock down and move it later |
| Color is tied to a repeat program | Finish the current program run on old film; move it at the next natural break |
| Specialty film used a few times a season | Move it last, or order when the next job lands |
Step 2: Decide which colors move first
The colors to move first are the ones that are high-volume and low-risk: they run every day, so you learn the new film fast, and they rarely carry a strict color match. For most apparel shops that's black and white Standard PU, followed by red, navy and royal.
Hold back the colors that are low-volume or high-risk until the new film has proven itself:
- Brand-matched colors for corporate accounts, where the customer approved a specific shade.
- Team colors mid-season, where the second half of a roster must match the first.
- Layered and specialty work such as 3D Puff or Safety Reflective, where the press window and layering rules are less forgiving.
- Anything on difficult fabrics such as polyester performance wear, where dye migration adds a second variable. Our HTV on polyester guide covers that separately.
A practical three-wave plan looks like this:
| Wave | Colors and films | Moves when |
|---|---|---|
| 1 | Black and white Standard PU | Week 1, after a test press and wash test |
| 2 | Remaining core colors (red, navy, royal, gray, etc.) | After wave 1 passes a real job and a matching reorder |
| 3 | Brand-matched colors, team colors, specialty films | At the next natural break in each program |
Moving a whole shop's volume?
If you're a decorator, print shop or reseller moving steady weekly volume, ask about wholesale pricing before you size your first order. It changes the math on how much stock to carry.
Step 3: Size the first order
The first order has two jobs: keep wave 1 colors running, and give you enough of the new film to qualify it properly. Too small and you're reordering before you've finished testing. Too large and you're sitting on a film you haven't approved.
Use this for each wave 1 color:
First-order yards = weekly usage × (door-to-door lead time in weeks + 2-week buffer) − old stock you'll still use on new jobs
Then round up to full rolls. A full 20" × 54.5 yd roll is a little under 55 yards, so it's easy to convert.
| Weekly usage | Lead time | Yards needed (lead time + 2 weeks) | Full rolls |
|---|---|---|---|
| 15 yd | 1 week | 45 yd | 1 |
| 30 yd | 1 week | 90 yd | 2 |
| 30 yd | 2 weeks | 120 yd | 3 |
| 60 yd | 1 week | 180 yd | 4 |
Two notes. First, measure lead time as door-to-door, not "ships in". If you don't know it yet, assume a week and correct after the first delivery. Second, for a color you use less than a roll a month, one roll is enough. For the cost side of these decisions, the 2026 HTV pricing breakdown explains why delivered cost matters more than roll price.
Step 4: Qualify the film before it touches a customer job
When the first rolls arrive, run them through a short qualification before any production job:
- Check the platen. Measure your press temperature with a probe or temperature strips in the center and all four corners. If the press is off, every film will look bad, and you'll blame the wrong one.
- Test-press on your three most common blanks at the new film's published settings. Check release, edge seal and hand.
- Wash test. At least five wash-and-dry cycles the way your customers will wash them. Look for lifting, cracking and shade change.
- Swatch it. Press a reference swatch of each new color, label it with the film, color, date and lot number if the roll has one, and pin it to the board next to the old film's swatch.
Only after all four steps does the new film go on a real job, and the first one should be a short run of 25–50 pieces for a customer who isn't color-critical.
Step 5: Run parallel stock without mix-ups
For two to six weeks you'll have two films of the same color on the shelf. That's where mistakes happen: an operator grabs the nearest black roll, presses it on the old settings and you get lifting edges on a 100-piece order. A few habits prevent it.
- Separate shelves, not separate ends of the same shelf. Label the old film's shelf "Old film: open jobs only".
- Tape a colored flag on the core of every new roll and on any partial roll you cut from it. The film name should be readable at arm's length.
- Write the film on the job ticket. Add a "Film" line next to color and piece count. The person who pulls the roll checks it against the ticket.
- One film per job, start to finish. Never finish a job on a different film than it started on, even if you run short. Reprint the whole order before you mix.
- First in, first out on the old film. Use open rolls before full ones so you don't end the switch with a shelf of half-rolls.
- Store both films the same way. Rolls stored on end in a hot or humid corner behave differently from rolls stored flat in a cool room. See our HTV handling and storage guide.
Plan to retire the old film for each color on a set date. When the last open job on it ships, move any leftover old stock to a "test and seconds" bin for test presses and internal work, so it never drifts back into production.
Step 6: Re-save every preset under the new film's name
Settings drift is one of the most common causes of failed transfers right after a switch. The fix is to make the new settings the easiest thing to find.
| Where settings live | What to change |
|---|---|
| Heat press presets (digital controllers) | Save a new preset named by film, not by color: for example "ProFusion Std PU – cotton". Delete or rename old presets "OLD –" so they sort to the bottom. |
| Cutter material library | Add the new film as its own material with its blade, force and speed. Don't overwrite the old entry until the old film is gone. |
| Laminated settings card at each press | Print a new card with time, temperature, pressure, peel and second press for each film. Remove the old card the day the old film retires. |
| Job ticket template | Add the "Film" line and, for new film jobs, the press setting. |
| Training notes and SOPs | Update the settings for new operators so a new hire learns the new film first. |
As a reference point, ProFusion Standard PU presses at 305–320°F for 10–15 seconds at medium pressure, in line with the ThermoFlex Plus settings in our ThermoFlex to KIMS Direct cross-reference guide. Always confirm the current settings on each product page and run your own test press, because platen accuracy and fabric finishes vary from shop to shop.
Step 7: Tell the customers who need to know
Most customers won't notice a film change. The few who will should hear it from you first:
- Repeat programs: if a team or corporate account's next order will be on the new film, send a pressed swatch of their color with a short note before the run.
- Brand-matched colors: get sign-off on the new swatch, the same way you got sign-off on the first.
- Care instructions: if the new film's wash guidance differs, update the care card that goes in the bag.
A four-week schedule
| Week | Tasks |
|---|---|
| Week 0 | Stock and committed-work audit. Pick wave 1 colors. Place the first order. |
| Week 1 | Platen check, test presses, start the wash test, reference swatches. Save new presets and cutter materials. Set up separate shelves. |
| Week 2 | First short production job on wave 1 colors. Finish the wash test. Place the first reorder and compare it against the reference swatch on arrival. |
| Week 3 | Wave 1 becomes the default for all new jobs. Order wave 2 colors and qualify them the same way. |
| Week 4+ | Wave 2 into production. Move wave 3 colors at each program's natural break. Retire old film color by color. |
A shop with lots of open repeat programs may need six weeks. That's fine. The schedule bends; the two rules don't.
Where KIMS Direct fits
Many of the shops that switch to us are doing it mid-season, often after a previous source changed hands. We set up our offer to make that easier:
- Full production rolls. Every film is a full 20" × 54.5 yd roll, so the order math above works in whole rolls. Browse the standard heat transfer vinyl and specialty heat transfer vinyl collections.
- Commercial-grade PU, built to the same standard as POLI-TAPE and Stahls'.
- Free shipping on all orders, with no minimums, so a one-roll reorder during qualification costs no more than it should.
- A satisfaction guarantee on every roll, which takes most of the risk out of the first order.
- Wholesale pricing for shops and resellers once your volume is steady.
Frequently asked questions
Is it a bad idea to switch HTV suppliers in the middle of a busy season?
Not if you do it in waves. The risk comes from moving everything at once or changing film partway through a repeat order. Move one or two high-volume colors first, finish open repeat programs on the old film and you can switch at any time of year.
How much should my first order from a new HTV supplier be?
For each color you're moving first, multiply your weekly usage by your door-to-door lead time plus two weeks, subtract any old stock you'll still use on new jobs and round up to full rolls. For low-volume colors, one roll is enough to qualify the film.
Can I use up my old HTV after I switch?
Yes. Finish open jobs and repeat programs on it, using open rolls first. Just never mix films within a single job. Once the last job on the old film ships, keep leftovers for test presses and internal work.
Do I need new heat press settings when I change suppliers?
If you're moving to a different film, yes. Use the new film's published settings, test on your own blanks and save them as new presets named by film. If you're buying the same branded film from a different dealer, your settings usually carry over, but test anyway.
How long does it take to move a shop to a new HTV supplier?
Three to six weeks for most shops. Wave 1 colors can be in production by the second week. Specialty films and brand-matched colors take longer because you move them at natural breaks in each program.
What's the most common mistake when switching HTV suppliers?
Pressing the new film on the old settings. It shows up as lifting edges or a poor release and gets blamed on the vinyl. Re-save presets by film name, put the film on the job ticket and remove old settings cards the day each old film retires.
Planning a switch? Talk it through with us.
Tell us your core colors, weekly volume and the film you're moving from, and we'll help you plan the first order and check stock before you place it.
