ELEGOO Tough Resin High Impact Resistance High Toughness Black 1000g Review (2026)

What this resin is

This is ELEGOO's Tough Resin in black, a 405nm UV-curing photopolymer sold in a 1000g bottle and built for DLP and LCD resin printers. ELEGOO markets it around high impact resistance, high toughness and high precision, positioning it for functional parts and engineering-style prototypes rather than purely decorative prints. The listing specifically calls out resistance to breakage from collisions, falls and other impacts, which is the core reason to reach for a tough resin over a cheaper standard resin when printing anything that might get bumped, dropped or handled regularly, such as small brackets, clips, tool holders or mechanism housings.

Impact resistance and flexibility

ELEGOO's published data lists a Shore hardness of 78 to 81D for this resin, alongside flexural strength around 35 MPa and tensile strength around 32 MPa, figures that sit in the range expected for a tough rather than a rigid standard resin. The company states that printed parts can flex under load and return to their original shape rather than snapping outright, and that the resin holds up to rigorous tapping and drilling without cracking. That combination of hardness and flex is what separates a tough resin from a standard one: standard resins are typically more brittle and better suited to static display models than anything that needs to survive regular handling.

Curing behavior in black

Darker resins, including black, generally require more UV energy to cure fully through a given layer thickness than lighter colors like grey or clear, since more light gets absorbed rather than transmitted through the resin. That means exposure times for this black tough resin may need to run longer than for a standard grey resin on the same printer, and getting print settings dialed in with a proper exposure test is worth doing before a full print. ELEGOO lists shrinkage in the 0.2 to 0.7 percent range and a viscosity around 600 to 800 mPa.s for this formula, both reasonable figures for a resin printers can dial in without major recalibration.

Where it fits against other tough resins

Within ELEGOO's own tough resin lineup and against rivals like Anycubic's Tough Resin 2.0 and Siraya Tech's Tenacious line, this black formula competes mainly on price and accessibility rather than being the single toughest option available. Buyers chasing maximum flexibility for parts like living hinges may find a dedicated flexible resin, or a blend with a flexible formula, better suited, while this tough resin is a reasonable middle ground for parts that need to survive occasional impact without being genuinely rubbery. The black color also gives finished parts a more finished, mechanical look than a clear or pastel tough resin would.

Practical use and value

For hobbyists printing functional small parts, this resin's combination of moderate price and genuine impact resistance makes it a sensible default choice over a standard resin whenever a part is likely to be handled, dropped or clipped into place repeatedly. It is not a specialty flexible resin and should not be expected to bend like rubber, so anything that needs a true living hinge or significant elasticity should look elsewhere. For everyday functional printing, such as enclosure clips, small brackets and prototype housings, it offers a reasonable balance of strength and affordability.

Frequently asked questions