Logo for LuminousFlex

Make a bright statement with a LuminousFlex™!

LuminousFlex™ is a glow-in-the-dark heat transfer vinyl. This HTV is soft and thin, taking on finer details with grace. It feels and acts similarly to ThermoFlex® Plus! Our LuminousFlex™ gives your design an unexpected bright glow when the lights go out.

LuminousFlex™ is suitable for sportswear, leisurewear, and many other applications. Glow-in-the-dark designs are very popular and will make your decoration stand out from the crowd!

There are three types of LuminousFlex™-

  • LF-4790 is thicker, has a non-sticky carrier, and no stretch. Has a green glow.
  • LF-4791 has a blue, sticky carrier and has a little stretch. Has a green glow.
  • White & Neons have a sticky carrier and a little stretch. Glow varies by material.

Once pressed, all have a gorgeous glow and a soft feel!

Product Colors

Mouse over the swatches for product name and number!

Cut Settings

PLEASE NOTE: Every blade and machine is a little bit different- always remember to test cut! These cut settings are a starting point to be adjusted to your blade and machine.


  • Material: Iron On
  • Pressure: Default
  • Blade: Fine-Point Blade


  • Material: Heat Transfer, Smooth
  • Blade: 3
  • Speed: 8
  • Force: 9


  • Speed: 8
  • Force: 16

We use a 45° blade and 60° blade for LF-4790

Tech Info

Tech PDF includes product thickness, roll sizing, and other technical information

Application Instructions

Blade – LF-4790: 60°
All others: 45°
Cut – Mirror image
Temp – LF-4790: 320° F
LF-4791, Whites, Neons: 300° F
Pressure – Medium, even
Time – LF-4790: 15 seconds
LF-4791: 12 seconds
Whites & Neons: 8 seconds

Peel – Warm
Care – Wait 24 hours before 1st wash. Wash inside-out, cold water, gentle. Tumble dry low heat. Do not dry-clean.
Layerable? – Top layer only
Applies to: Cotton, Uncoated Polyester, Polyester/Cotton, and Polyester/Acrylic
This product cannot be used on nylon.