Industrial Flex - HARZ Labs



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Engineering resin compatible with LCD and DLP printers, allowing the production of flexible and high-tenacity parts.

HARZ Labs is a resin manufacturer with extensive experience in chemicals, especially polymers, that develops and produces high quality materials for all types of resin 3D printer technologies (DLP/LCD, SLA, CJP and others).

Industrial Flex is a resin for LED-LCD and DLP printers that allows to obtain parts with a high tenacity. It has mechanical properties similar to polyurethane, so it has good flexibility, which makes it suitable for the manufacture of joints, shock absorbers and other engineering elements that require flexibility and toughness.

It has a breakage deformation of more than 100%, which together with its tensile strength of 13 MPa makes it one of the flexible resins with the highest mechanical resistance.

This resin also has a low shrinkage during printing of only 0.5%, which, together with its low viscosity of 0.5 - 0.8 Pa*s, makes it possible to obtain parts with good dimensional stability.

Parts printed with Industrial Flex resin

Image 1: Parts printed with Industrial Flex resin. Source: Harz Labs

Another main advantage of Industrial Flex resin is that it can be used to add in variable proportions to other Harz Labs resins in order to reduce their brittleness and increase their elasticity*, thus being able to adjust their mechanical properties. Moreover, because this resin is available in translucent colour, it will hardly modify the shade of coloured resins (depending on the proportion used, it can dilute the colour producing less saturated colours).

*If used to add biocompatible resins, these will lose their biocompatibility.

Elongation at break (%) 103
Tensile strength (MPa) 13
Surface hardness 7
Flexibility Flexibility
Translucent Translucent

Once an impression has been completed, the part must be removed from the manufacturing platform with the metal spatula, taking care not to damage the surface of the platform. The part is then immersed in IPA for 10 - 20 minutes, depending on the colour of the resin and the size of the part, to remove the uncured resin from the outer walls of the part. After this time, air pressure should be applied to the piece until it is completely dry. To achieve the maximum properties that HARZ Industrial Flex can provide, it is necessary to cure the resin for 30 - 60 minutes at a temperature of 40 - 60 ºC (to eliminate internal stresses) in a curing centre (Form Cure) with a wavelength of 405 nm.

Before removing the parts from the manufacturing base, the user must be equipped with a series of safety measures. The use of gloves is recommended to prevent resin and alcohol from contacting the skin. It is also crucial to wear safety glasses for any drops that may arise during the washing of the parts.

General information
Manufacturer HARZ Labs (Russia)
Technology LCD / DLP
Material Photopolymer
Wavelength UV 405 nm
Format 1 kg
0.5 kg (on request, contact us)
Colour Translucent 
Compatible 3D printers  UniZ, WANHAO, zortrax, ANYCUBIC, ASIGA, B9 Creator, PRUSA, Elegoo.
Printing properties
Layer height 100-50-25 μm
Layer exposure time See manufacturers' recommended print values in the following link.
Layer cooling time
Elevation height
Exposure of the lower layers
Number of lower layers
Curing and washing properties
Washing time 5 - 15 min 
Curing time Recommended: 15 - 30 min
Total curing time: 60 min
Curing temperature 40 - 60 ºC
Mechanical properties
Izod impact resistance -
Charpy impact resistance -
Elongation at break (ASTM D638) 115.0 ± 15.5 %
Tensile strength (ASTM D638) 12.4 ± 4.5 MPa
Traction module (ASTM D638) 250 ± 15 MPa
Flexural strength -
Bending module -
Surface hardness (ASTM D2240)  73 ± 5 Shore D
Thermal properties
Softening temperature
Further information
Lifetime (from manufacture) 24 months
HS Code 2916.1

* The typical values detailed in this table should be considered as a reference. Actual values may vary depending on the 3D printer model used, part design and printing conditions. We recommend that you confirm the results and final properties with your own test. For further information, please refer to the product data sheet.


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