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Liqcreate Rigid Pro resin

Ref.: LIQC-RIGIDPRO-1000

103.95 €

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Approximate delivery date: Wednesday 8 January - Thursday 9 January

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Liqcreate's Rigid Pro resin is a high-performance material tailored for industrial applications that demand exceptional strength, minimal shrinkage, and superior rigidity. This engineering resin is specifically designed to produce parts that exhibit remarkable stiffness, durability, and dimensional stability.

Video 1: The Rigid Pro resin printed on the Nexa3D XiP printer. Source: Liqcreate.

Its high strength, combined with good temperature and chemical resistance, makes Rigid Pro an ideal choice for a wide range of applications, including molding, automotive connectors, pulleys, covers, brackets, and housings.

Parts 3D printed with the Rigid Pro resin

Image 1: Parts 3D printed with the Rigid Pro resin. Source: Liqcreate.

The material’s robust characteristics enable it to perform effectively in demanding engineering environments, ensuring reliability and longevity. Comprehensive studies regarding the resin's thermal aging and chemical resistance are accessible on the Liqcreate website.

Part 3D printed with the Rigid Pro resin

Image 2: Part 3D printed with the Rigid Pro resin. Source: Liqcreate.

To achieve optimal strength, parts printed with Rigid Pro resin necessitate UV post-curing with an added heat application. This curing process can be fine-tuned to enhance thermal performance further, with an optional thermal curing step that significantly improves the material’s overall characteristics.

Property	Test method	UV curing 30 minutes at 60°C	UV curing 120 minutes at 60°C
Tensile strength	D638	52 – 70 MPa	60 – 84 MPa
Tensile modulus	D638	2.6 – 2.8 GPa	3.0 – 3.2 GPa
Elongation at break	D638	4 – 8%	3 – 6%
Flexural strength	D790	100 – 110 MPa	110 – 130 MPa
Flexural modulus	D790	2.8 – 3.0 GPa	3.0 – 3.2 GPa
IZOD Impact (notched)	D256A	21 J/m	18 J/m
IZOD Impact (notched)	ISO 180	2.5 kJ/m²	2.3 kJ/m²
Water sorption	D570-98	0.46%	0.40%
Shore D Hardness	D2240	87	90
HDT-B 0.45 MPa	ISO75	77°C	91°C
HDT-A 1.8 MPa	ISO75	65°C	75°C

Table 1: Curing time influences the final properties of parts 3D printed with the Rigid Pro resin. Source: Liqcreate.

A detailed comparison of the effects of 30-minute vs. 120-minute post-curing on parts 3D printed with the Rigid Pro resin can be found in Table 1. The parts in question were post-cured in the FormCure machine.

Shoe sole mold 3D printed with the Rigid Pro resin

Image 3: Shoe sole mold 3D printed with the Rigid Pro resin. Source: Liqcreate.

This black photopolymer resin is compatible with most open DLP, MSLA, and other laser-based 3D printers that operate within the wavelength range of 385-405 nm. Notable models that can process Rigid Pro include the Nexa XiP, Anycubic Photon M7 Pro, Phrozen Sonic Mighty Revo 14K, and Elegoo Mars 4 Ultra 9K.

Parts 3D printed with the Rigid Pro resin can be drilled

Image 4: Parts 3D printed with the Rigid Pro resin can be drilled. Source: Liqcreate.

The full list of 3D printers compatible with this resin can be found on the Liqcreate website. The versatility of Rigid Pro resin in various 3D printing technologies, combined with its impressive performance characteristics, positions it as a leading choice for professionals seeking reliable and durable engineering solutions.

General information
Manufacturer	Liqcreate
Material	Photopolymer
Format	1 kg
Technology	SLA / LED-LCD / DLP
Wavelength	385 - 420 nm
Viscosity	@ 25 ºC: 290 cP
Maximum water absorption	(D570-98) 0.46 %

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

Specific properties
Chemical resistance	✓

Curing and washing properties
Washing time	4 - 5 min
Curing time	30-120 min
Curing temperature	60 ºC

Mechanical properties (uncured / cured)
Izod impact strength	(ISO 180) 2.5 KJ/m²
Charpy impact strength	- KJ/m²
Elongation at break	(ASTM D638M) 4-8 %
Tensile strength	(ASTM D638M) 52-70 MPa
Tensile modulus	(ASTM D638M) 2600-2800 MPa
Flexural strength	(ASTM D790) 100-110 MPa
Flexural modulus	(ASTM D790) 2800-3000 MPa
Surface hardness	(ASTM D2240) Shore 87 D

Thermal properties (uncured / cured)
Softening temperature	(ISO 75, HDT-B) 67 ºC

Other
HS Code	2916.1
Lifetime (since manufacturing)	- M

The post-processing workflow for the Rigid Pro resin is quite user-friendly. First, the 3D printed part has to be cleaned twice for 2 minutes each time in clean Liqcreate Resin Cleaner or IPA alcohol, by agitation or in an ultrasonic cleaning device. If the design features small cavities, an additional 1-minute cleaning in fresh solvent combined with brush application will help remove any remaining uncured resin. After cleaning, the part 3D printed with the Rigid Pro resin should be set aside for drying for about 30 minutes until no shiny spots are visible on the surface of the part.

It absolutely crucial that the parts are dry before post-curing. The curing of wet or sticky parts will lead to mechanical and surface defects. For standard non-high-temperature applications, a curing duration of 30 minutes at 60 ºC is effective in achieving desirable mechanical properties. For applications demanding greater temperature resistance, it is advisable to extend the curing time to 120 minutes at the same temperature. Curing units such as the Form Cure are suitable for this process. It is essential to avoid UV curing at temperatures significantly above 60 ºC, as uncured parts do not exhibit high-temperature resistance. Additional post-curing settings and information for various curing units can be found on the Liqcreate website.

The Liqcreate resin bottles should be stored in a clean and dry environment, out of direct sunlight and in a temperature of 5-30 ºC. Before use, the resin bottle should be shaken energetically for at least 1 minute (at least 3 minutes in the case of filled resins). Once shaken, the resin should be left to rest for around 10 minutes to let the air bubble escape. Leftover resin can be poured back into the bottle but it should be first filtered to ensure there is no polymer residue present. Safety equipment such as protective garments, gloves and face protection is highly recommended for the handling of resin.

More information on the Rigid Pro resin, such as 3D printing parameters, support settings, recommended part orientation, troubleshooting, etc., can be found on the Liqcreate website, as well as in the documents in the Attachments section.