Removing protective resin from an electronic board requires patience, care, and proper technique to avoid damaging delicate components. This guide will walk you through the process, from workspace preparation to the actual cleaning, ensuring your board remains in top condition throughout. Whether for repair, maintenance, or diagnostics, following the right steps is essential to preserve functionality and reliability.

What You’ll Need

• Pure Isopropyl Alcohol 99.9% – 1000ml Bottle for Epoxy Resin Projects & DIY – effective for resin softening and residue cleaning
• Strong Technical Degreaser for Resin Projects – 100% Natural Formula – helpful for removing stubborn grease or silicone residues
• Nitrile Gloves – 50 Pairs (100 Pieces) – provide hand protection against chemicals
• “Climax” Mask with “ABEK” Filters for Resins – Certified Protective Respirator – for respiratory protection when working with solvents
• Soft anti-static brush
• Non-linting cloths or swabs
• Eye protection and adequate ventilation

Choosing the Right Workspace and Protective Gear

Set up your workspace in a well-ventilated area and wear both gloves and a certified respirator to minimise exposure to solvent vapours. Ensure all tools are ready before you begin and keep non-essential items away from your work zone.

Step 2: Carefully Disconnect and Inspect the Board

Before handling or cleaning the electronic board, ensure full power-off and removal of batteries or mains connection. Handling powered boards or those with residual voltage can cause short circuits or injury. Inspect the board visually for obvious points where the resin layer may be thinner, damaged, or easy to start removal. Taking photos or notes can help with reassembly after cleaning.

Step 4: Gently Remove the Resin Layer

Work in small sections, gently wiping and lifting the softened resin with a fresh swab or anti-static brush. Use minimal solvent and never soak the board, as excess liquid may seep under components and cause corrosion. If oily or greasy contaminants remain, a very small amount of Strong Technical Degreaser for Resin Projects on a cloth can assist, followed by isopropyl alcohol to finish cleaning.

Troubleshooting and Tips for Best Results

Work slowly to avoid prying up components along with the resin. If resistance is met, pause to let the solvent work longer before re-attempting. For very thick or stubborn coatings, repeating steps in gentle increments is safer than forceful scraping. Always ensure good ventilation and consistent protective equipment use throughout. Dispose of solvent-soaked materials responsibly given their flammability and environmental impact.

Extra Advice for a Clean Finish

Take breaks and reassess progress often. Never rush the removal process; patience minimises risk to sensitive components. Test each cleaning agent on a hidden section before broader application.