GT FLEX Thermoforming Instructions

GT FLEX Clear Aligner Material - Thermoforming Instructions

Keep Protective Lamination in Place

The GT FLEX Original material comes with a super-thin, protective lamination on both sides. Leave these protective layers in place throughout the thermoforming process. They help protect the aligner from absorbing potentially nasty chemicals from the printed aligner models and from dust or other debris that could reduce the clarity of the finished aligner.

They also provide a generally higher level of sanitation to the finished aligner – some dentists even deliver the aligners to patients with these protective layers still in place.

Thermoforming

GT FLEX – 0.8mm (0.03″) Thickness
Machine Heating* Pressure
MINISTAR/BIOSTAR 25 Seconds @ CODE-125 4 Bars Minimum
Erkodent/Forestadent 35 Seconds @ 150°C Machine Default
Drufomat 45 Seconds @ 160°C 4 Bars Minimum
GT FLEX – 1.0mm (0.04″) Thickness
Machine Heating* Pressure
MINISTAR/BIOSTAR 35 Seconds @ CODE-125 4 Bars Minimum
Erkodent/Forestadent 40 Seconds @ 150°C Machine Default
Drufomat 55 Seconds @ 160°C 4 Bars Minimum

*Note: heating times are general guidelines. Individual machines may act differently. If sheet does not adapt well to model, increase or decrease heating time in five-second increments until ideal adaptation is achieved. If sheet folds when thermoformed, bubbles appear in the thermoformed device, or the device is otherwise not clear, check to make sure the machine’s heating element is calibrated correctly and/or reduce heating time until issue no longer occurs.

Finishing

We recommend using sharp carbide cutters and finishing burs over sintered diamond or stone. To smooth and shine edges after cutting, use a hand piece on slow speed with a felt cone and fine-grade pumice.

Cleaning

Do not use solvent to clean GT FLEX sheets or devices.

Keeping the protective lamination in place during thermoforming and finishing should minimize the need for cleaning GT FLEX aligners. But if you do want to clean them, we recommend using a clean, wet cloth. (Note: for spot-cleaning an unexpected blemish – or to remove excess polishing material – a small amount of isopropyl alcohol on a cotton swab or cloth may be used as well.)

Need to Reorder?

All three of the GT FLEX clear aligner materials offer a superior mix of clarity, strength, and flexiblity:

GT FLEX Original

GT FLEX Original - Clear Aligner Material
$1.99 per sheet
(for 100-sheet packs)
In Stock
  • Excellent mix of clarity, strength, and flexibility

GT FLEX PRO

GT FLEX PRO - Clear Aligner Material
$2.99 per sheet
(for 100-sheet packs)
In Stock
  • More flexible and almost 10x stronger than original

GT FLEX MAX

GT FLEX MAX - Clear Aligner Material
$3.99 per sheet
(for 100-sheet packs)
Coming Soon
  • Maximum flexibility and maximum strength, with great clarity

Need Help Making Clear Aligners?

We can help! Good Fit has a number of clients who make clear aligners using the GT FLEX materials. They can help you with treatment planning as well. If you’d like a recommendation…

Please Contact Us