Overview

Proper resin tank maintenance is essential for consistent print quality. This guide explains when to clean the tank, how to clean it safely, and how to identify when it is time to replace a worn tank.

When to Clean the Resin Tank

Regular inspection helps prevent print issues caused by smudges, cured resin, or debris in the light path. Clean the resin tank when:

• Residual resin has been sitting for an extended time
• You see partially cured resin on the film
• You experience unexpected print failures
• The tank is switching into storage
   

How to Clean the Resin Tank

1. Remove the Resin Tank

• Gently pull the tank toward you to unlock it.
• Lift upward to fully remove it from the cradle.

2. Empty the Resin Tank

• Pour remaining resin back into the original bottle.
• Use a mesh strainer to prevent cured particles from entering the bottle.
• A 200-micron paint filter or finer is recommended.
• Work quickly; resin begins to cure once exposed to UV light.

3. Remove Large Resin Chunks

• If cured or partially cured resin is stuck to the film, gently peel it away.
• Avoid using sharp or abrasive tools, since the film is easily damaged.

Note: Damage to the tank film can cause repeated print failures.

4. Wipe the Inside of the Tank

• Apply a small amount of IPA 91 percent (or greater) to a soft shop towel.
• Gently wipe the inside surface of the tank.
• Avoid applying pressure along the film edges.
• Never pour IPA directly into the tank. This can cause tank failure.

Recommendation: Use one tank per resin type. Changing materials within the same tank can lead to contamination and inconsistent results.

5. Clean the Underside of the Tank

• Flip the tank over.
• Wipe the underside clear window with IPA and a soft towel.
• Clean the corners and edges thoroughly.

6. Verify Cleanliness

• Shine a bright light across the tank surface at a low angle.
• Ensure no streaks, dust, resin spots, or residue remain.
   

When to Replace the Resin Tank

Resin tanks are rated for up to 15 liters of resin under normal use. For best results, SprintRay recommends replacement after 10 liters.

Common signs of a worn resin tank include:

• Hazy, scratched, or rough interior film
• Wrinkles or stretched plastic film
• Loud peeling noises during printing
• Horizontal lines or shifting in printed parts
• Poor adhesion to the platform
• Visible leaks or discoloration