Water Washable 3D Printer Resin 2kg - Fast Curing, Low Shrinkage

In this review of SUNLU water washable 3D printer resin, the bottom line is simple: this 2kg grey photopolymer is aimed at hobbyists and small workshops who want easy cleanup and consistent prints without needing constant IPA. The biggest reason to buy is the water washability combined with fast curing under 395 to 405nm UV, which speeds workflows and reduces post-processing cost. The review covers real-world strengths and the tradeoffs observed by users so you know what to expect before loading your vat.

Key Features

• Water washable: The resin cleans easily with plain water instead of relying only on IPA or alcohol, saving time and expense after printing.
• Fast curing: Formulated to cure quickly under 395-405nm UV light, it performs reliably with most LCD, DLP and SLA printers.
• Low shrinkage: Engineered to reduce volume change during cure, which helps retain fine detail and dimensional stability.
• High compatibility: SUNLU tested multiple printers and settings to make this resin friendly for beginners and broadly compatible across 2K/4K/8K systems.
• Leak-proof bottle: The patented leak-proof packaging reduces transport damage and keeps the resin sealed until use.
• Light odor and easy cleanup with alcohol: While water washability is highlighted, it also cleans well with isopropyl alcohol or ethanol and has a relatively light smell that dissipates after curing.

Who It's For

The resin is best for hobbyists, makers and small shops using LCD/DLP/SLA 3D printers who want a larger 2kg supply and prefer washing parts with water to lower consumable costs. Its fast cure and low shrinkage make it a good choice for detailed miniatures, prototypes and functional parts where dimensional stability matters.

Professionals needing guaranteed toughness or lab-grade material characterization should look elsewhere; some users report mixed results on brittleness and occasional failed prints, so those requiring highly predictable mechanical performance for end-use parts may prefer specialty engineering resins.

Pros & Cons

Pros

• Water washable formula cuts post-processing time and expense compared with alcohol-only resins.
• Fast curing at 395-405nm improves throughput on supported printers.
• Low shrinkage helps preserve fine detail and dimensional accuracy in prints.
• Leak-proof bottle and large 2kg supply are convenient for regular use.

Cons

• Some users report mixed durability, with a few parts feeling brittle under stress.
• Color clarity and occasional print failures have been reported, so settings may need tuning per printer.

Specifications

Our Verdict

The SUNLU 2kg water washable resin is a practical, cost-conscious choice for hobbyists and small shops that prioritize easy cleanup and fast cure times. It delivers good detail and dimensional stability for models and prototypes, though users should be prepared to tune settings and be aware that mechanical toughness can vary. For the price and convenience, it represents solid value for non-critical parts.

Frequently Asked Questions

Can this resin be cleaned with water?
Yes, the formula is water washable, though many users also use isopropyl alcohol or ethanol for faster, cleaner rinses.

Which printers work with this resin?
It is designed for LCD, DLP and SLA printers, including 2K, 4K and 8K machines that emit 395-405nm UV light.

Is the cured material strong?
Print strength is generally good for models and prototypes, but some users report brittleness on certain prints, so test settings for end-use parts.