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Liqcreate Stone Coal resin

Ref.: LIQC-STONECOAL-250

33.95 €

Tax excl.

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units available for shipping in 3 - 4 days Available for shipment within 3 - 4 days

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Approximate delivery date: Friday 27 December

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Liqcreate, the Dutch designer and manufacturer of premium photopolymers for DLP, SLA and MSLA technologies, has a rich catalog of resins for general applications as well as premium, creative, engineering, dental and castable resins. One of the Liqcreate general purpose resins is the Stone Coal Black resin.

A part 3D printed with the Stone Coal Black resin

Image 1: A part 3D printed with the Stone Coal Black resin. Source: Liqcreate.

It is an opaque high resolution photopolymer resin characterized by a very smooth surface finish of 3D printed parts and great accuracy with small details.

Video 1: A camera shade cover 3D printed with the Stone Coal Black resin. Source: Liqcreate.

Just like all Liqcreate resins, the Stone Coal Black resin is compatible with most open material resin 3D printers on the market due to the resin's wide range of compatible light sources (385-405 nm). Thus, the Stone Coal Black resin can be used with XYZ, Uniz, Phrozen, Creality, Anycubic or Formlabs 3D printers, and more. The manufacturer provides a full list of compatible 3D printers as well as the recommended printing settings.

Video 2: Printing with the Stone Coal Black resin on the Formlabs Form 2 3D printer. Source: Liqcreate.

These features make the Stone Coal Black resin ideal for applications such as rapid prototyping and product development in many industries as it creates detailed, accurate and beautiful black objects. When 3D printed, the Stone Coal Black resin produces very low amounts of odor, which makes it user-friendly and adequate for use in any workspace.

Curing, washing, and sintering properties
Washing time	4 - 5 min
Curing time	-
Curing temperature	- ºC

General information
Manufacturer	Liqcreate
Material	Photopolymer
Format	0.25 kg / 1 kg
Technology	SLA / LED-LCD / DLP
Wavelength	385 - 405 nm
Viscosity	@ 25 ºC: 700 cP
Density (liquid)	1.12 g/cm³

Printing properties
Layer height	25 - 100 µm
Layer exposure time	-
Layer off time	-
Lifting height	- mm
Bottom layer exposure	-
Bottom layer count	-

Mechanical properties
Izod impact strength	- KJ/m²
Charpy impact strength	- KJ/m²
Elongation at break	(ASTM D638M) 7 %
Tensile strength	(ASTM D638M) 51 MPa
Tensile modulus	(ASTM D638M) 1900 MPa
Flexural strength	(ASTM D790M) 50 MPa
Flexural modulus	(ASTM D790M) 1450 MPa
Surface hardness	(ASTM D2240) Shore 78 D

Thermal properties
Softening temperature	61 ºC
Glass transition temperature	(D7028) 52-54 ºC

Specific properties
Maximum water absorption	(D570-98) 0.3 %

Other
HS Code	2916.1
Lifetime (since manufacturing)	- M

The post-processing workflow for the Stone Coal Black resin is quite user-friendly. First, the 3D printed part has to be cleaned for a maximum of 6 minutes in Liqcreate Resin Cleaner, IPA alcohol or bioethanol, preferably ultrasonic or under agitation. Then the completely dried part has to be cured in a high-power UV curing chamber. The curing workflow is explained in detail by the manufacturer here. It absolutely crucial that the parts are dry before they are cured. The curing of wet or sticky parts will lead to mechanical and surface defects. The drying can be done by simply leaving the cleaned part in a well ventilated area for at least 30 minutes or with the help of pressurized air (2 minutes) for parts cleaned in IPA alcohol or ethanol.

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 useful resources such as tips on how to use support structures with the Liqcreate resins, or on how to color, age or mix the resins can be found on the Liqcreate support page.