Extra protection for the most sensitive areas of your car

Polyurethane OEM metal primers for superior stone chip resistance

Pebbles, gravel and other road debris travel at high speeds when kicked up by tires and can cause damage to a car’s paint finish. Polyurethane primers are ideal for protecting the most sensitive sections of the car body.

metal primer
High-quality PU-based primers

Primers are used in automotive OEM finishing for door sills, front sections and other areas of the car body that need additional protection against stone chipping. They are applied after the initial electrocoat and before the primer-surfacer for added automotive chip resistance.

Polyurethanes (PUs) are ideal for automotive OEM metal primers because they offer the perfect combination of toughness and flexibility for superior stone chip protection. They also provide added protection for the underlying electrocoat.

Bayhydrol® water-based PUs from Covestro offer excellent automotive chip resistance in OEM metal primers, even at low film builds. They also have good flow and leveling properties, which translates to a smoother surface. As a result, automotive OEM primers formulated with Bayhydrol® water-based polyurethanes benefit from both cost savings and a high-quality surface appearance.

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