Decontamination
Quick answer: Decontamination is the process of removing bonded and embedded contamination from paint — using chemical and mechanical steps - so polishing and coatings can bond and perform properly.
What it means
After a thorough wash, chemical decontamination dissolves specific contaminants (iron fallout, tar, sap) and mechanical decontamination (usually a clay bar, clay pad or clay mitt with lubricant) lifts what remains. A final panel wipe removes polishing oils before protection. The result is a clean, smooth, high-energy surface ready for correction and coating.
Why it matters
- Adhesion: coatings and film bond better to a properly decontaminated surface.
- Finish quality: prevents dragging grit during polishing, reducing marring.
- Durability: fewer embedded particles means less under-film corrosion and longer-lasting protection.
- Consistency: even water behaviour and predictable results across panels.
Where you’ll see it
Before paint correction, ceramic coating, sealant or wax, and prior to PPF installation or touch-in paintwork.
Context
Car Paint Protection; Ceramic coatings; Paint correction
Common mistakes
- Skipping chemical decontamination and grinding particles into paint with clay.
- Claying a dirty or dry panel, or using heavy pressure that induces marring.
- Using iron remover on hot panels or leaving it to dry.
- Assuming a panel wipe replaces decontamination - it removes oils, not bonded contaminants.
- Mixing strong cleaners without rinsing and neutralising properly.
Written by Danny Argent. Last updated 07/11/2025 15:06