In alloy wheel refurbishment, a common question arises: Do we need to completely strip the old coating before recoating? The answer, surprisingly, is often no — and here’s why:
✅ Stable coatings can stay: If the existing finish is still well-adhered and free of corrosion, it can serve as a solid base for new coatings. Spot treatment and proper edge feathering are typically sufficient.
✅ Efficiency matters: Full removal is time-consuming and costly. Unless the original coating is failing, there's little benefit to blasting down to bare alloy across the entire wheel.
✅ Avoid thermal risks: Some stripping methods introduce heat that can alter the alloy’s temper. Keeping the process selective helps preserve structural integrity.
So why is wet blasting often the preferred method for prep?
✅ Gentle on alloys – The water-abrasive mix minimises surface erosion and heat.
✅ Superior surface finish – Leaves a clean, uniform texture perfect for paint adhesion.
✅ Low dust, high safety – Water suppresses airborne particles, improving shop conditions.
✅ Excellent at decontamination – Effectively removes corrosion, grime, and brake dust whilst stripping
In short, wet blasting offers the best of both worlds: thorough preparation without compromising the metal — and without wasting time on unnecessary full stripping.
