Rocker panels and cab corners: blasting before rust repair in Medicine Hat

Rocker panels, cab corners, wheel arches and the bottoms of doors are where most trucks and cars in southern Alberta rust first. The bubble you can see is the small part. What is under the paint around it is the part that sets the repair bill.

Why blast before the repair

A body shop quoting rust repair through paint is guessing how far the damage goes. Blasting the area back to bare metal shows it: where the steel is sound, where it is thin, and where it is gone. The repair can then be planned on what is actually there rather than discovered halfway through.

Wet blasting keeps panels straight

Dry blasting thin sheet metal builds friction heat quickly, and thin steel moves. Once a panel has oil-canned you are into bodywork you did not budget for. Wet blasting carries the heat away as it cuts, so rust, paint, filler and old primer come off and the panel stays the shape it was — the full comparison is in wet vs dry blasting on body panels.

Blasting does not fix rust. It tells you, before anyone cuts, exactly how much there is.

Common areas we strip

• Rocker panels and pinch welds.
• Cab corners and the back of the cab.
• Wheel arches and lower quarters.
• Door bottoms, tailgates and box sides.
• Floor pans and supports from underneath.

The pattern is familiar on trucks that have spent years on Medicine Hat and Cypress County roads: grit thrown up from the tires packs into the lower body, stays wet through every thaw, and works at the steel from behind.

Coordinate with your body shop

Bare metal starts flash-rusting almost immediately. Time the blast so the repair and primer follow closely, and tell us who is doing the bodywork so we can work around their schedule. The same goes for getting a vintage truck ready for paint.