Putty and plastic fillers smooth, repair, and refine 3D‑printed surfaces before finishing. This category includes gap‑fill compounds, modeling putties, and plastic‑safe fillers designed for PLA, PETG, ABS, and resin parts. Makers use them to seal seams, correct imperfections, and create uniform surfaces ready for sanding or painting. With fast‑curing, sandable formulas, these materials deliver clean transitions and professional‑grade finishes — ideal for prototypes, display models, and production‑ready components.
