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Soft Tissue Resin Kit - Formlabs

Ref.: RS-F2-KIT-SFTS

256.00 €

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Approximate delivery date: Friday 27 December - Friday 3 January

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Formlabs is a world renowned manufacturer of resin 3D printers and consumables. Its product catalogue is constantly evolving, developing specialised materials for different sectors, such as the dental field.

Formlabs dental resins.

Image 1: Formlabs dental resins. Source: Formlabs.

Currently, Formlabs' range of resins for dentistry allows dental practices and laboratories to quickly manufacture various dental products in their own facilities; from surgical guides and other biocompatible pieces to models for temporary or fixed prostheses or transparent aligners. All these products are made with incredible accuracy, with a maximum deviation of ±100 microns, and with very low material costs for each element, allowing the use of the 3D printer with any of the dental resins to be amortised in a few months.

Soft Tissue Resin is a material developed by Formlabs for 3D printing of flexible gingival masks for use in combination with rigid dental models.

The Soft Tissue Resin Kit contains one 80A Flexible Resin Cartridge and three colour pigments: magenta, yellow and white. With this kit, you can create your own resin in customisable dark, medium and light pink shades.

Soft Tissue Resin Kit.

Image 2: Soft Tissue Resin Kit. Source: Formlabs.

The Flexible Resin 80A has a hardness of 80 Shore A, which is what gives it its name and which gives the pieces a soft touch and texture.

Using the 80A Flexible Resin and colour pigments as part of a digital implant prosthetic workflow, healthcare professionals can print 3D soft tissue examples that better simulate the gum for dental implant modelling purposes.

Soft Tissue Resin allows resolutions of 50 and 100 microns, enabling the fabrication of very detailed models.

Customizable colour pigments allow the colour and opacity of the final printed model to be adapted. By mixing different proportions of pigment with the flexible 80A resin, different shades are achieved, as can be seen in the following picture:

Personalised shade with Soft Tissue resin.

Image 3: Personalised shade with Soft Tissue resin. Source: Formlabs.

To use Soft Tissue Resin and carry out the printing process optimally, the following materials and devices should be used:

Form 2 or Form 3B 3D printer.
It requires a LT resin tank if using the Form 2 printer and a V2 Form 3 resin tank if using the Form 3B printer.
Fabrication Platform.
Flexible 80A resin.
Colour pigments included in the kit.
Form Wash or Finish Kit.
Form Cure.

It should be noted that this resin is not valid for applications requiring biocompatibility, but has been developed to facilitate the workflow of dental implant modelling.

To download the impression guide for this resin, you must access the "Downloads" section.

Materials such as Soft Tissue Resin allow dental laboratories to streamline the manufacture of various dental products in their own facilities, saving time and reducing costs.

General information
Manufacturer	FormLabs
Material	Photopolymer
Format	1 L
Technology	SLA / LFS
Wavelength	UV 405 nm
Compatible resin tanks	Form 2 LT / Form 3
Compatible 3D printers	Form 2 / Form 3B

Printing properties
Layer height	50 - 100 µm
Layer exposure time	-
Layer off time	-
Bottom layer exposure	-
Bottom layer count	-

Curing and washing properties
Washing time	10 + 10 min
Curing time	10 min
Curing temperature	60 ºC

Mechanical properties (uncured / cured)
Izod impact strength	- KJ/m²
Charpy impact strength	- KJ/m²
Elongation at break	(ASTM D412) 100 % / 120 %
Tensile strength	(ASTM D412) 3.7 MPa / 8.9 MPa
Tensile modulus	- MPa
Flexural strength	- MPa
Flexural modulus	- MPa
Surface hardness	(ASTM D2240) Shore 70 A / Shore 80 A

Thermal properties (uncured / cured)
Softening temperature	- ºC

Other
HS Code	2916.1
Lifetime (since manufacturing)	24 M

Below, a series of usage tips are cited that must be taken into account at all times with the use of FormLabs resins:

Change cartridge

Changing the resin cartridge of the FormLabs printers is very simple, just close the top cap of the ventilation duct (vent) and remove the cartridge by holding it by the handle it has. Then the other is inserted and the vent plug is opened in case an impression is to be started. To avoid drips through the 3D printer, this process must always be carried out with the resin tank mounted.

Vent plug FormLabs

Image 1: Vent plug of the FormLabs cartridges. Source: FormLabs

After finishing each impression the vent plug must be closed so that the resin maintains its properties. In addition, if you don't use the printer for some time, you should keep the cartridge in its original box to keep the properties of the resin intact.

Resin tank

Each type of resin must have its resin tank, which must be changed after using 2L of resin. FormLabs has developed a more powerful tank, the Resin Tank LT, which has a life up to 20 times longer than the standard tank.

FormLabs Resin Tank LT

Image 2: FormLabs Resin Tank LT. Source: FormLabs

To protect and store the excess resin in the tank after each printing, FormLabs supplies a lid that ensures a perfect closure. Once the tank is closed, it is recommended to store it (with resin and lid) in the original box so that the resin doesn't lose its properties when exposed to UV rays for a long time. Another point to keep in mind is that the tanks can't be cleaned with any cleaning product or similar (for example, isopopyl alcohol), since they lose certain qualities that can cause continuous failed impressions.

Failed printing

When an error occurs in printing may be because solid parts of a previous printing have fallen to the resin tank. In this case, a spatula at 45° must be passed through the printing tank, gathering all the solid parts in a corner and removing them. To ensure that the tank resin doesn't contain any solid parts, the resin should be cast with a 190 μm paper filter. Once cast, it is put back into the tank and it is ready to be used again.

Video 1: Clean resin tank. Source: FormLabs

Isopropyl alcohol

Isopropyl alcohol is the key to the washing and post-processing of parts and you should know when it is time to change it. In the Finish Kit the moment to change it's when the IPA (Isopropyl Alcohol) is so saturated with resin particles, that after washing the pieces are still sticky. At that point you must remove all the liquid, clean the container well and throw new IPA, but never fill in on the previous one.

Finish Kit FormLabs

Image 4: Finish Kit FormLabs. Source: FormLabs

In the Form Wash, the wash center itself indicates through its screen when it is time to change the isopropyl alcohol.

Video 2: FormLabs Ecosystem. Source: FormLabs

If you wish you can contract our SLA 3D printing training courses (online or in person) by contacting us through the contact form. The training is oriented to obtain a wide knowledge and know how to use the 3D SLA FormLabs printers from the beginning and t.hus avoid major errors.