KLEAN-STRIP Bulldog Adhesion Promoter for Polyolefin Plastics — 15 oz Aerosol, Quick-Dry Fills 320-Grit Scratches

KLEAN-STRIP Bulldog Adhesion Promoter is a fast-drying aerosol primer that readies polyolefin plastics for paint by filling 320-grit scratches and promoting reliable bonding.

When painting bumpers, trim, or other polyolefin plastic parts, surface preparation is the difference between a long-lasting finish and premature failure. Bulldog Adhesion Promoter is formulated specifically for polyolefin plastics and comes in a 15-ounce aerosol for precision touch-ups and small repair jobs. It dries clear in about five minutes, stays active for up to 24 hours to allow flexible scheduling, and accepts a wide range of topcoats used in automotive refinishing.

How quickly does Bulldog dry and how long can I wait to paint?

The promoter flashes off to a tack-free clear finish in approximately five minutes under typical conditions. After application it remains chemically active for up to 24 hours, letting you apply primer or topcoat later the same day or the following day without redoing the prep.

• Flash time: ~5 minutes to tack-free
• Active window: up to 24 hours after spray
• Ideal for scheduling small jobs or multi-step repairs

Which plastics and paints work with this adhesion promoter?

Bulldog is designed for polyolefin plastics commonly used in automotive exterior parts such as bumpers and trim. It is compatible with many common refinishing systems, improving wetting and adhesion for a wide range of coatings.

• Target substrates: polyolefin plastics (melt-in and edge wetting)
• Compatible topcoats: acrylic lacquers, basecoats, epoxies, primers, sealers, and solvent-based urethanes
• Helps uniform flake orientation and color consistency

Will Bulldog replace sanding or just reduce it?

Bulldog is formulated to fill fine scratches left by 320-grit sanding, reducing the need for additional feathering or extensive rework. However, it complements proper mechanical prep—cleaning and appropriate sanding still ensure the best adhesion and finish.

• Fills 320-grit sanding scratches for smoother substrate
• Recommended: clean surface and remove contaminants before spraying
• Not a complete substitute for heavy damage repair or deep gouges

How is the product packaged and stored for small jobs?

The product comes in a 15-ounce aerosol can ready to use; its portability makes it convenient for spot repairs and trim work. The formula has a shelf life of up to two years when stored properly, making it a practical addition to a workshop or mobile kit.

• Container: 15 oz aerosol — ready to spray
• Shelf life: up to 2 years in proper storage
• Designed for small-to-medium repair tasks and touch-ups

Who is this for? KLEAN-STRIP Bulldog Adhesion Promoter suits automotive technicians, body shops, and DIY enthusiasts who need a reliable, fast-drying solution for preparing polyolefin plastic parts for refinishing. It’s especially useful when working on bumpers, exterior trim, or any plastic panels where improved paint take and quicker turnaround are priorities. Use it as part of a standard paint-prep workflow—clean, sand to 320 grit, apply Bulldog, then follow with compatible primer or topcoat within the active window.