Method
Standard HTV settings
Everyday polyurethane heat transfer vinyl is the film most UK crafters mean by “HTV”. Two published charts sit close together, and they are not the same instruction.
Use this page for smooth, everyday colour films. Glitter, flock and stretch, metallic and holographic films have their own charts.
| Film | Temperature | Time | Pressure | Peel |
|---|---|---|---|---|
| Siser EasyWeed | 150°C (305°F) | 10–15 seconds | Medium | Hot or cold |
| Garment Films One Flex, standard | 140°C (284°F) | 8 seconds | Not listed on the chart | Hot, warm or cool |
| One Flex, cooler option | 120°C (248°F) | 15 seconds | Not listed on the chart | Hot, warm or cool |
| Siser EasyWeed Sub Block | 130°C (265°F) | 10–15 seconds | Medium | Hot or cold |
One Flex also lists 150°C for 5 seconds and 130°C for 10 seconds. Garment Films call 140°C for 8 seconds the standard recommendation for all applications of that film. Their chart does not print a pressure figure, so use the data sheet in the packet rather than guessing “medium”.
Siser print 305°F next to 150°C. A straight conversion of 150°C is 302°F. Use their pair when you are following their sheet. The converter does the straight conversion and flags this 150°C quirk.
Cotton, blends and polyester
EasyWeed’s published list is 100% cotton, poly-cotton, 100% polyester and leather, all at the same heat. Garment Films’ chart covers cotton, polyester and polyester/cotton mixtures, and it says the films are not for nylon or coated fabrics. There is no separate “blend temperature” on either chart. Read the cotton and poly-cotton notes before a first run.
Polyester is where ordinary vinyl misbehaves. Dye in the shirt can creep into the film after pressing, or even after washing. Siser tie that to high temperature and high pressure, and they publish EasyWeed Sub Block at 130°C (265°F) as a blocker you can layer under other colours. Details are on the polyester page.
Children’s clothes and totes
A plain cotton child’s T-shirt can use the cotton row if the care label can take it. For babywear and heat-sensitive polyester, Siser’s HI-5 is the film they describe as certified for baby clothing: 120°C for 5 seconds on textiles up to 150 g/m², or 150°C if the fabric is heavier, at high pressure. That lives on the children’s clothing page, with the One Flex 120°C option. Canvas totes are not named separately; uncoated cotton canvas follows the cotton row after a proper pre-press.
How to press it
- Cut mirrored and weed. Mirror text and weed the excess film. A test cut tells you whether the blade is lifting the carrier.
- Pre-press the shirt. Siser say 2–3 seconds to warm the garment. Garment Films’ FAQ says 5–10 seconds when you need to clear wrinkles and moisture. Use a cover sheet on anything heat-sensitive.
- Press the row for your film. EasyWeed is 150°C for 10–15 seconds at medium pressure. One Flex’s standard line is 140°C for 8 seconds. Do not mix the time from one with the temperature from the other.
- Peel the way that film says. EasyWeed peels hot or cold. One Flex is listed as hot, warm or cool. If a corner lifts, Siser say to cover it and press again for 5–10 seconds.
- Wait before washing. Both makers say to wait 24 hours. Wash inside out, skip fabric conditioner, and follow the garment label.
Common questions
Why is there not one standard temperature?
Because “standard HTV” is a shelf of products. Siser EasyWeed publishes 150°C for 10–15 seconds. Garment Films One Flex publishes 140°C for 8 seconds as the standard recommendation, with cooler and shorter alternatives on the same line.
I have a Cricut EasyPress. Do I add 30 degrees?
Siser’s EasyWeed sheet says EasyPress users should add about 30°. It is written beside 305°F/150°C, and it is read as 30°F rather than an extra 30°C. That note is about the EasyPress, not every hobby press. Other machines need a scrap test, because the dial is often not the platen temperature.
Does ordinary EasyWeed work on nylon?
The EasyWeed instruction sheet lists cotton, poly-cotton, polyester and leather, not nylon. EasyWeed Extra is the Siser film that lists nylon, at the same 150°C. Garment Films say the films on their chart are not suitable for nylon.
Sources
- Siser EasyWeed — 150°C / 305°F, medium, 10–15 seconds, hot or cold peel
- Garment Films HTV application guidelines (PDF) — One Flex, including 140°C for 8 seconds
- Siser EasyWeed Sub Block — 130°C blocker for dye migration