Can Epoxy Glues Be Used on 3D Printed Models?

Why Epoxy Glues Suit 3D Prints

Epoxy adhesives are well-known for their strong bonds on a variety of plastics commonly used in 3D printing, like PLA and ABS. They provide superior adhesion and also enhance the structure of your model. Specialist products such as 3D Finish Fast Coating Epoxy Resin are designed to deliver a smooth, glossy coating while keeping even the smallest details of your print intact.

How to Apply for Optimal Results

When working with 3D prints, always check the compatibility of the epoxy with your print material. Prepare the surface by cleaning and gently roughening it if possible. Mix the epoxy components thoroughly according to the product instructions—”3D Finish” recommends a precise ratio for best adhesion. Apply an even layer over your model or at bonding joints, allowing the product to self-level and cure, typically in just a few hours at room temperature.

• Use in a well-ventilated area
• Follow the correct mixing ratio (for “3D Finish”, 100A:50B by volume or 100A:45B by weight)
• Avoid excess application that could obscure fine features

When This Matters

Choosing epoxy glues is especially helpful when models need long-lasting joins, surface protection, or a flawless finish. They’re ideal for reinforcing fragile parts, restoring broken prints, or preparing pieces for sanding and painting where layer lines or gaps should be minimised.