Door jamb
The door jamb is the painted inner edge of a car door (and the matching frame on the body) that becomes visible only when the door is open.
What it means
Door jambs are the part of the car you only see when you open a door. They are painted at the factory in the same colour as the exterior, and on a full respray or colour change they need to be sprayed too. Skipping them is a common shortcut at lower-tier bodyshops because masking off the door interior, removing seals, and spraying tight inner edges takes time. The visible result is a car whose exterior reads new but whose door jambs reveal the original colour the second a passenger gets in. On a colour change in particular, unsprayed jambs are an immediate giveaway. The same logic applies to the boot lid surround, the bonnet underside, and the fuel filler door. A complete respray includes all of these.
Why it matters in Singapore
Singapore resale buyers in particular check door jambs as part of any inspection, since they reveal both prior colour changes and the quality of past bodywork. A respray that includes the jambs holds resale value much better than one that does not. For the owner's own use, painted jambs also age more uniformly with the rest of the car under tropical UV and humidity.
How Revol Carz handles this
Revol Carz includes door jambs as standard on every full respray and colour change. Doors are removed or fully open during spraying, seals are stripped or properly masked, and the inner edges are sprayed and oven-baked alongside the exterior. Same Spies Hecker paint, same dust-free booth, no shortcuts.