What Are 3D Printer Bed Adhesives?

Bed adhesives are products applied to the build surface before printing to improve how the first layer interacts with the bed. Depending on the material and temperature, they can either increase adhesion or act as a controlled interface layer that prevents parts from bonding too aggressively.

Unlike permanent surface treatments, bed adhesives are designed to be temporary, repeatable, and easy to clean. When used correctly, they help stabilise prints during heating and release cleanly once the bed cools.

What Moisture Does Inside Your Hotend

When damp filament is heated, absorbed moisture flashes into steam. That steam creates bubbles and voids as plastic extrudes, often causing:

• Popping or crackling sounds while printing
• Bubbles, pitting, or “foamy” extrusion
• Increased stringing and oozing
• Poor layer adhesion and reduced mechanical strength
• Inconsistent extrusion and rough surface finish