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Achieving a flawless, scratch-free finish on composite resin surfaces takes the right approach and products. By following careful steps, you can enhance the appearance and longevity of your resin projects.
Preparation: Sandpaper and Clean Surfaces
Start by using fine-grit sandpaper to smooth the surface. Choose a grit of 800 or higher and apply gentle, even pressure. It’s important to keep the sanding surface clean—wipe away dust frequently using a natural degreaser or a lint-free cloth. Ensure your workspace and tools are free from loose particles to prevent accidental scratches during finishing.
Selecting the Right Polishing System
For best results, apply a dedicated resin polish, such as the Epoxy Resin Polishing System. Use a clean buffing pad or a soft cloth either by hand or with a rotary polisher. Avoid using aggressive compounds not formulated for resins, as these can introduce fine marks. Work in circular motions and reapply polish as needed until the desired gloss is achieved.
Aftercare and Scratch Prevention
After polishing, wipe the composite with a mild solvent like 99.9% pure isopropyl alcohol to remove any residues. Store your finished items away from abrasive objects and handle with clean hands. Regular dusting and gentle cleaning help maintain a pristine appearance.
When This Matters
Scratch avoidance is crucial if you require a clear, high-gloss finish, such as on table tops, decorative panels, or jewellery. Careful finishing ensures your project’s professional look and feel.
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By using careful sanding techniques, purpose-made polishes, and the appropriate products, you’ll minimise scratches and create truly eye-catching composite resin work. For more advice on finishing and preparing composites, visit our main guide on excess resin removal.