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Panel Wipe / IPA Wipe
Quick answer: A panel wipe is a fast-evaporating solvent wipe, often IPA-based, used after polishing to remove oils, silicones and residue so coatings, PPF or paint can bond cleanly.
What it means
After machine polishing, trace lubricants and fillers remain on the surface. A panel wipe (isopropyl alcohol mixes or purpose-made solvent blends) dissolves and lifts these residues. The goal is a squeaky-clean, water-break-free surface before applying a ceramic coating, sealant, PPF or touch-in paint.
Why it matters
Adhesion is the whole point. Polishing oils and silicones left on a panel sit between the paint and whatever goes on next, so removing them is what lets a coating bond to the surface rather than to a film of residue. Coatings also level and cure more predictably across a set of panels that have all been wiped to the same standard.
There is a second reason, and it has less to do with chemistry than with seeing clearly. Wiping strips the fillers that mask holograms and haze, so what is in front of you afterwards is the true finish rather than the flattered version. Done properly it also lowers the risk of fisheyes and outright failure under films and repaints, which is why it appears as a named step in most coating and refinish systems rather than as an optional extra.
When in the process it happens
Immediately before ceramic coating, sealants, PPF installation, vinyl wraps and small paint touch-ins; also between polishing stages when checking progress under raking light.
Context
Our workshop treats the panel wipe as the point of no return before a ceramic goes on; after that cloth comes off, the surface is either ready or the whole prep sequence starts again; there is no middle ground.
Common mistakes
- Thinking panel wipe replaces decontamination - it removes oils, not bonded contaminants like tar or iron.
- Flooding edges, fresh paint or delicate plastics - use light, controlled sprays on the towel and test first.
- Coating before full evaporation - trapped solvent can affect cure and appearance.
- Using household glass cleaners that leave surfactants or fragrance residues.
- Wiping in hot sun or on hot panels, causing smears and rapid flash that misses residue.
- Reusing a saturated or dirty towel that just moves oils around.