Free shipping on orders over £29,85 
Shipping Tracking! 
Google
Facebook← Back to How do you resin a gadget?
The foundation of a smooth, durable resin application is careful surface preparation. Whether customising a gadget, repairing a 3D print, or creating resin jewellery, proper prep ensures a strong bond and the best finish.
Cleaning and Degreasing
Begin by thoroughly cleaning the gadget’s surface to remove all dirt, oils, and residue. Use mild soap and water for general cleaning and let it dry completely. For extra assurance, wipe the surface with isopropyl alcohol (ensure proper ventilation), as this removes stubborn greasy marks that could prevent adhesion. Avoid touching the cleaned surface with bare hands afterwards to keep it oil‑free.
Sanding and Priming
Sanding is crucial for promoting adhesion, especially on glossy or plastic surfaces. Gently sand the area to create a slight texture, using fine-grit sandpaper (around 600–1000 grit) to avoid deep scratches. After sanding, brush or blow away any dust, then wipe the surface again with a lint-free cloth. If your gadget is highly polished or made of a non-porous plastic, consider a primer recommended for resin crafts. This is particularly helpful for 3D-printed objects—using a product like 3D Finish Epoxy Resin offers both a strong initial bond and a professional, smooth finish.
When Surface Preparation Matters Most
- For intricate gadgets: Proper prep prevents resin from pulling away at corners or in fine details.
- When using transparent or glossy resins: A clean, matte surface ensures clarity and shine by avoiding trapped dust or fingerprints.
- For repairs or protective coatings: Good adhesion increases durability and moisture resistance.
Related products
Related guides
Taking a little extra care to prepare your gadget’s surface makes all the difference in both look and longevity. Ready to resin your next project? Explore more tips and suitable products on our How do you resin a gadget? guide.