GT FLEX Thermoforming Instructions

GT FLEX Clear Aligner & Retainer Material - Thermoforming Instructions

Keep Protective Lamination in Place

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

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

Thermoforming

GT FLEX ORIGINAL – 0.8mm (0.03″) Thickness
Machine Heating* Cooling Pressure
MINISTAR / BIOSTAR 25 Seconds (CODE-113) @ Machine Default Temperature Machine Default 4 Bars Minimum
Erkodent / Forestadent Machine Default Time @ 150°C 40 Seconds Machine Default
Drufomat 45 Seconds @ 160°C Machine Default 4 Bars Minimum
GT FLEX PRO – 0.8mm (0.03″) Thickness
Machine Heating* Cooling Pressure
MINISTAR / BIOSTAR 30 Seconds (CODE-123) @ Machine Default Temperature Machine Default 4 Bars Minimum
Erkodent / Forestadent Machine Default Time @ 160°C 40 Seconds Machine Default
Drufomat 45 Seconds @ 160°C Machine Default 4 Bars Minimum
GT FLEX PRO – 1.0mm (0.04″) Thickness
Machine Heating* Cooling Pressure
MINISTAR / BIOSTAR 30 Seconds (CODE-125) @ Machine Default Temperature Machine Default 4 Bars Minimum
Erkodent / Forestadent Machine Default Time @ 165°C 55 Seconds Machine Default
Drufomat 55 Seconds @ 160°C Machine Default 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 and retainers. 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.)

General Precautions

When thermoforming, grinding, or polishing thermoforming materials: 1) avoid contact with hot or molten material as it may cause thermal burns, 2) wear appropriate protection to protect eyes and face, and 3) work in a well-ventilated area and wear appropriate respiratory protection to avoid inhaling dust or irritating vapors that may be given off as a result of thermal decomposition.

Need to Reorder?

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

GT FLEX Original

GT FLEX Original - Clear Aligner Material
September 2020 SPECIAL PRICE $1.99 $1.79 per sheet
(for 100-sheet packs)
In Stock
  • Excellent mix of clarity, strength, and flexibility

GT FLEX PRO

GT FLEX PRO - Clear Aligner & Retainer Material
September 2020 SPECIAL PRICE $2.99 $2.69 per sheet
(for 100-sheet packs)
In Stock
  • More flexible *and* 10x stronger than ORIGINAL

GT FLEX MAX

GT FLEX MAX - Clear Aligner & Retainer Material
September 2020 SPECIAL PRICE $3.99 $3.59 per sheet
(for 100-sheet packs)
In Stock
  • Maximum flexibility and maximum strength

Need Help Making Clear Aligners or Retainers?

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

Please Contact Us

Next Up: Fabrication & Treatment Planning