Blu Lava Grey 3D Printer Resin - Fast, PC-Like Strength

In this review the Blu Lava Grey 3D printer resin is examined for makers and engineers who need durable, production-ready parts from LCD and DLP printers. The bottom line: this resin delivers a genuine combination of speed and stiffness, with a high Young's Modulus and Shore hardness that make it behave more like a PC than typical standard resins. It is best suited to users printing functional prototypes, jigs, fixtures or housings who want the option to tap threads straight from the cured part without cracking.

Key Features

• PC-like stiffness: With a high Young's Modulus of about 2500 MPa the material offers exceptional rigidity for demanding functional parts and structural prototypes.
• High hardness: Shore 87D hardness gives printed parts a tough, rigid surface that resists deformation in mechanical assemblies.
• Fast curing: Formulated for rapid cure so larger models and production batches can be printed with thicker layers and shorter overall print times.
• Tappable after printing: The resin can be tapped for threads directly after printing without cracking, simplifying assembly and reducing post-processing steps.
• Injection mold-quality finish: Prints exhibit smooth surfaces and tight dimensional accuracy suitable for direct use where appearance matters.
• Biocompatibility tested: Passed ISO 10993-10 irritation and skin sensitization tests for device prototyping that may contact skin.

Who It's For

The resin is aimed at engineers, product designers and small production shops that need durable, dimensionally accurate parts from LCD or DLP machines and appreciate faster print throughput. If you routinely make jigs, fixtures, housings or mechanical prototypes that require tapped threads or a stiff, machinelike behavior this material is a good fit.

Users looking for very flexible or elastomeric behavior should look elsewhere, and those who require certified implantable materials will need different biocompatibility testing despite ISO 10993-10 skin contact results. Hobbyists focused only on decorative pieces may find the stiffness unnecessary.

Pros & Cons

Pros

• Excellent dimensional accuracy and smooth surface finish that approach injection molded appearance.
• High stiffness and Shore hardness provide durable parts for functional use.
• Faster printing with the ability to use thicker layers without long exposures, cutting batch times.
• Tappable parts reduce the need for inserts or extra hardware in assemblies.

Cons

• Less suitable when significant flexibility or elongation is required, as the material favors rigidity.
• Some users report mixed impressions of odor and flexibility compared with other engineering resins.

Specifications

Formulation	Tough engineering resin
Young's Modulus	About 2500 MPa
Hardness	Shore 87D
Optimized layer height	Suitable for thicker layers (example 100m)
Printer compatibility	LCD and DLP 3D printers
Pack size	1kg
Biocompatibility	Passed ISO 10993-10 irritation and skin sensitization

Our Verdict

The Blu Lava Grey resin is recommended for professionals and advanced hobbyists who need stiff, accurate parts and faster print throughput; its tap-ready strength and injection mold-quality finish make it strong value for functional prototypes and small production runs.

Frequently Asked Questions

Can parts be tapped right after printing?
Yes, the formulation is designed to tolerate tapping for threads directly after proper post cure without cracking.

Will this resin work on my LCD or DLP printer?
Yes, the resin is optimized for LCD and DLP 3D printers and supports thicker layer prints for faster throughput.

Is this safe for skin contact in prototypes?
It has passed ISO 10993-10 tests for irritation and skin sensitization, making it suitable for device prototyping with skin contact, though final device certification may require additional testing.