KLEAN-STRIP Bulldog Adhesion Promoter for Automotive Plastics & Metal — 1 Gal Ready-to-Spray, Quick-Dry

Klean-Strip Bulldog Adhesion Promoter is a ready-to-spray, quick-drying primer that improves paint adhesion on automotive plastics, metals, aluminum and fiberglass while filling 320-grit scratches.

Designed for collision repair shops and serious DIYers, this one-gallon adhesion promoter cuts prep time by drying tack-free in about five minutes and stays active up to 24 hours. It comes pre-formulated for spray application with no mixing required, is tintable, and can be blended into basecoat or clearcoat to enhance flexibility, flake laydown, color consistency, and edge wetting. Use it on substrates such as TPO, polypropylene, SMC, pre-painted metals, aluminum and fiberglass to create a reliable paint bond before topcoats.

How fast will I be able to paint after applying Bulldog Adhesion Promoter?

Bulldog is engineered for quick turnaround: it becomes tack-free in roughly five minutes under normal shop conditions and remains effective for up to 24 hours. If you exceed that window, a light tack and recoat restores adhesion performance.

• Tack-free in about 5 minutes for faster workflow.
• Maintains activity up to 24 hours for flexible scheduling.
• Re-tack and apply a light coat if left longer than 24 hours.

Which surfaces and repair scenarios is this adhesion promoter suitable for?

Bulldog was formulated to stick to a wide range of automotive substrates, including painted and unpainted metals, aluminum, fiberglass, and common plastic materials used in bumpers and trim. It fills 320-grit scratches and supports both large body shop jobs and small localized repairs.

• Works on TPO, polypropylene, SMC, fiberglass, aluminum, and pre-painted metal.

Do I need to mix or thin Bulldog Adhesion Promoter before use?

No mixing is required — Bulldog comes ready to spray straight from the container. It’s tintable and can be added into base or clearcoat systems to improve flexibility and finish characteristics when integrated into your paint process.

• No pre-mixing: spray-ready formulation saves prep time.
• Tintable for color adjustments or compatibility needs.

What technical or safety information should I check before using it?

Refer to the product’s Technical Data Sheet for full instructions on proper application, recommended equipment settings, handling, and storage. Follow local regulations and shop safety practices for ventilation and personal protective equipment when spraying solvent-borne materials.

Who this product is for: Klean-Strip Bulldog Adhesion Promoter is intended for professional body shops, collision repair technicians, and experienced automotive hobbyists who need a dependable, fast-drying primer for mixed-material panels. It’s especially useful when working with bumper plastics and lightweight metal panels where reliable adhesion and quick turnaround matter.