Sanding tips

Confirm cure and remove blush before dry sanding epoxy, then use debris, heat, and coating requirements as stop signals.

Use dry sanding only for bounded acrylic edge shaping or opaque prep, with a low-heat test ladder and clear stop rules.

Dry-sand ABS by task, using light supported strokes and frequent heat, loading, geometry, and coating-readiness checkpoints.

Choose a dry-sanding path by print material, cure state, and finish goal while controlling dust, heat, loading, and geometry loss.

Run a controlled coupon test to compare structured and conventional abrasive scratch patterns without assuming grade equivalence or inventing results.

Make polymer identification, cleaning, adhesion promotion, and a complete-system coupon the main decision rather than relying on a rough surface alone.

Trim only proud adhesive or damaged edge fibers, using sacrificial guides and low heat instead of treating soft foam like rigid plastic.

Restore optical consistency while separating polishing from the separate decision to apply a compatible UV-protective coating.

Treat exposed fibers, cracks, soft spots, and impact marks as structural inspection findings, not ordinary sanding defects.