What is Transport Wax?
Quick answer: Transport wax is a temporary protective coating applied to new cars for shipping and storage. It shields paint from dirt, salt and fallout, then gets stripped off at pre-delivery inspection with a dedicated remover -- it is not long-term protection.
Transport wax, sometimes called storage wax, is a very thick product applied to cars for long transportation or when they go into storage. It is not there to look good -- it is purely a thick sacrificial layer to prevent environmental contamination.
It is usually applied at the factory before the car travels by boat, rail or transporter, and it comes off along with any polythene sheeting before the car reaches the showroom or the customer.
From the factory gate to your driveway, a new car can spend weeks on trains, lorries and ships, often parked in salty air or near industrial fallout. Transport wax is the thick sacrificial barrier that takes the abuse so the fresh clear coat underneath does not have to. It shrugs off salt spray, grime and fallout that would quickly mark bare clear coat. It is cheap and robust, so it can sit on the car for months in compounds and storage yards. And it is designed for bulk removal when the car is being prepared for handover. The point is that transport wax is a shipping aid, not a premium upgrade -- it exists so the paint arrives in the same condition it left the factory.
As a retail customer you rarely see transport wax, because it should be removed during pre-delivery inspection. When it is still there, it is usually obvious: a thick, waxy, sometimes streaky film on otherwise glossy paint. It can attract dust and look smeared in the light. If your new car arrives looking that way, ask the dealer about it before you accept the handover -- it should have been removed.
For how transport wax fits alongside long-term protection options, see is there anything better than a ceramic coating?