Waterbased stone chip primer that acts as a shock absorber preventing the chipping of paint.
Stone Chip primer is very effective for under wheelarches and the underside of the car. It's a plasticised coating that remains flexible so stones tend to bounce off rather than chip the paint coating. It's sprayed using a schultz gun and should go on with a thick rounded orange peel finish.
Even with a cellulose paint overcoat the stuff is effective. I used it in the wheelarches of my MGA over 15 years ago overpainted in cellulose body colour and it's still working fine. Underseal used on later projects has already worn away in exposed areas.
Repairability is better for stone chip than bitumen based underseals - it will overpaint, so no need to remove every last bit when carrying out a repair. |