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Visible scratches on clear resin often result from over-sanding or not working through the correct abrasive grades in sequence. Here’s how to maintain clarity and flawless results in your resin creations.
Why Grit Progression Matters
Sanding clear resin properly means using abrasive papers of increasingly fine grit. If you skip too many grades or apply too much pressure with a coarse grit, deep scratches can remain visible even after polishing. Progressing methodically through each grit—from coarse to very fine—ensures surface scratches are gradually reduced and eliminated, setting the stage for a brilliant shine.
Achieving a Glossy, Scratch-Free Finish
Patience and proper technique are key. After finishing with fine abrasive papers, use a polishing system designed for resin, such as the “Epoxy Polish” – Epoxy Resin Polishing System. For optimal gloss and efficiency, apply the polish using a rotary polisher or hand pad holder rather than a standard cloth; this ensures sufficient pressure and even buffing. If any dull patches or residues remain, buff the surface further with a microfibre or polishing sponge.
When This Matters Most
Taking care with sanding sequences is crucial on high-gloss, transparent resin projects—such as table tops, casting art pieces, and jewellery—where any imperfection or haze stands out. Detailed finishing will result in a truly professional result, rewarding your efforts with a crystal-clear surface.
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By following a thorough sanding progression and proper polishing techniques, you’ll avoid visible scratches and achieve a flawless shine. To explore more expert tips on finishing resin, return to our main guide on how to polish clear resin.