In car paint spraying, the paint spray hose is a critical transmission component in the spraying system. It has two main jobs. First, it carries paint from the storage tank or color mixer straight to the spray gun. Second, it transports gas—like compressed air—to power the spray gun.
Choosing the right car paint spray hose material matters a lot. It directly impacts the quality and final effect of your car paint job. Below, I’ll break down three common types of paint spray hoses used in car paint spraying, so you can pick the best one for your needs.
1. PU Air Paint Spray Hose
The PU air paint spray hose is made from high-resilience polyurethane raw material. It has excellent softness, which makes it easy to handle during spraying. This type of hose is mainly used as an air hose in car paint work. It’s especially ideal for the air intake pipes of manual spray guns and automatic spray guns. Its soft texture lets you move the spray gun freely, which helps maintain steady paint application.
2. PE Oil Paint Spray Hose
The PE oil paint spray hose stands out for its strong corrosion resistance. Compared to PU air hoses, it’s a bit harder. In car paint spraying, this hose is often chosen for the oil intake pipes of spray guns. It works particularly well with pressure-feeding spray guns and automatic spray guns. Its corrosion resistance keeps paint chemicals from damaging the hose, ensuring smooth paint flow and consistent spraying results.
3. Thermoplastic Paint Spray Hose
Most thermoplastic paint spray hoses have a PU outer layer and a Teflon inner layer. This design combines the best features of PU air hoses and PE oil hoses. It has the softness of a PU hose (making it easy to maneuver) and the corrosion resistance of a PE hose (protecting against paint damage). For this reason, it’s a top choice for car paint spraying occasions with special requirements—like high-pressure spraying or use with harsh paint formulas.