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Dental LT Clear Resin - FormLabs

Ref.: RS-F2-DLCL-02

349.00 €

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Approximate delivery date: Wednesday 18 December

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One of Formlabs' specialties are advanced high quality resins for applications in the dental sector. Dental resins are a great opportunity for dentists and orthodontists to agilize their workflow and achieve incredible precision in much less time and in a more affordable way.

The Dental LT Clear V2 Resin by Formlabs is a MDR certified (compliance with the requirements for European Union medical devices) class IIa long-term biocompatible resin based on Formlabs' proprietary formula. The Dental LT Clear V2 Resin was designed to be a reformulation of the Dental LT Clear Resin, with significant improvements in color and durability.

Splints 3D printed with the Dental LT Clear V2 Resin

Image 1: Splints 3D printed with the Dental LT Clear V2 Resin. Source: FormLabs.

The Dental LT Clear V2 Resin has a 50% higher impact resistance than the Dental LT Clear Resin, and it is more resistant to brittling and fracturing. Furthermore, Formlabs has color-corrected the Dental LT Clear V2 Resin, which makes it yellow much less and slower (60% less yellowing) than the Dental LT Clear Resin. The Dental LT Clear V2 Resin 3D prints clear and it polishes to high optical transparency, similar to that of PMMA.

Occlusal guide 3D printed with the Dental LT Clear V2 Resin

Image 2: Occlusal guide 3D printed with the Dental LT Clear V2 Resin. Source: FormLabs.

The Dental LT Clear V2 Resin is an improved and more affordable resin designed to 3D print high quality splints, occlusal guards and night guards. It allows professionals in the dental industry to manufacture in-house, in a personalized, faster and more affordable way, and to provide high quality and aesthetically pleasing products.

General information
Manufacturer	FormLabs
Material	Photopolymer
Format	1 L / 5 L
Technology	SLA / LFS
Wavelength	UV 405 nm
Compatible resin tanks	Form 2 LT / Form 3/3B V1/V2/V2.1 / Form 3L/3BL V1/V2/V3, Form 4
Compatible 3D printers	Form 2, Form 3B/3B+/3BL, Form 4B

Printing properties
Layer height	100 µm
Layer exposure time	-
Layer off time	-
Bottom layer exposure	-
Bottom layer count	-

Curing and washing properties
Washing time	15 + 5 min
Curing time	60 min
Curing temperature	60 ºC

Mechanical properties (uncured / cured)
Izod impact strength	- KJ/m²
Charpy impact strength	- KJ/m²
Elongation at break	12 %
Tensile strength	52 MPa
Tensile modulus	2080 MPa
Flexural strength	- MPa
Flexural modulus	2300 MPa
Surface hardness	Shore 78 D

Thermal properties (uncured / cured)
Softening temperature	- ºC

Other
HS Code	2916.1
Lifetime (since manufacturing)	24 M

Parts 3D printed with the Dental LT Clear V2 Resin require post processing in order to ensure their optimal performance and biocompatibility of the 3D printed dental appliances. Washing should be done in the FormWash automated washing center (20 minutes in IPA). Parts 3D printed with the Dental LT Clear V2 Resin should be first washed for 15 minutes, then soaked in fresh isopropyl alcohol for the remaining 5 minutes. Leaving the parts in the IPA for longer than 20 minutes will result in lower quality of the parts due to excessive solvent exposure. It is also crucial to use separate wash buckets for biocompatible and non-biocompatible materials. As far as curing, it should be done with the help of the FormCure curing chamber (60 minutes at 60 ºC).

After each printing, the excess resin should be properly stored in order to ensure its longevity. Each FormLabs tank comes with a lid and it should be used for perfect closure. Once the tank is closed, it should be stored in the original box so that the resin doesn't lose its properties when exposed to UV rays for a long time. When stored correctly, the Dental LT Clear V2 Resin has a longevity of 24 months.

How to store the FormLabs resins to ensure their longevity

Image 1: How to store the FormLabs resins to ensure their longevity. Source: FormLabs.

The tank’s cleaning recommendations should always be consulted before using any cleaning product that may damage the tank (for example, isopropyl alcohol) and result in failed prints. The tank should also be regularly cleaned from solid residues, otherwise a printing error may occur. Any solid pollutants can be removed with a spatula at a 45 º angle, like shown in a video provided by FormLabs.

Video 1: Cleaning the resin tank from solid residue. Source: FormLabs.

More information on the Dental LT Clear V2 resin can be found in the technical datasheet in the Downloads section. The manufacturer also provides a useful guide on how to 3D print dental splints with the FormLabs SLA printers (Downloads).