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

This 15-ounce spray is formulated specifically for difficult-to-bond polyolefin plastics — commonly found in automotive trim, bumpers, and exterior components — and creates a paint-ready surface in minutes. Bulldog’s formula flashes dry in about five minutes and remains active up to 24 hours, giving you flexibility to prepare parts in advance. It’s compatible with a wide range of topcoats including acrylic lacquers, basecoats, epoxies, sealers, and solvent-based urethanes, and helps improve flake orientation and color consistency for more professional-looking results.

How quickly does this adhesion promoter let me continue with painting?

Bulldog Adhesion Promoter is designed for fast workflow: it flashes tack-free in roughly five minutes, allowing you to proceed with primer or paint soon after application. Because it stays active for up to 24 hours, you can prep parts one day and finish later without losing adhesion performance.

• Flash/tack-free dry time: ~5 minutes
• Active window for painting: up to 24 hours
• 15 oz aerosol ideal for small to medium repair jobs
• Convenient for staged prep and paint workflows

Will this work on the plastic parts used on cars and trucks?

Yes — Bulldog is formulated for polyolefin plastics such as polypropylene and polyethylene commonly used in automotive exterior parts. It improves surface energy to accept a variety of automotive topcoats and is suited for melt-in and edge-wetting applications where adhesion is critical.

• Target substrates: polyolefin plastics (PP, PE, etc.)
• Compatible topcoats: acrylic lacquers, basecoats, epoxies, urethanes
• Works on trim, bumpers, and exterior molded parts
• Designed to reduce delamination and promote uniform coverage

How does Bulldog handle sanding marks and surface prep?

Bulldog fills fine 320-grit sanding scratches, reducing the need for further wet-sanding before painting. The spray leaves a clear film that levels minor abrasions so your primer and color coats lay down smoothly with improved color and flake orientation.

• Fills light 320-grit scratches for a smoother finish
• Creates a uniform bonding surface for subsequent coats
• Improves flake orientation and color consistency
• Reduces time spent on repeated sanding and feathering

How should I store and use this aerosol for best results?

The can ships ready to spray; shake well and apply in light, even passes from the recommended distance on clean, dry plastic. Store the aerosol in a cool, dry area out of direct sunlight and it will maintain shelf life properties for up to two years when unopened.

• Shake can thoroughly before use and perform test spray
• Apply light coats, allow ~5 minutes flash between coats as needed
• Store unopened for up to 2 years in cool, dry conditions
• Use appropriate PPE and ventilated workspace when spraying

Who is this for: Klean-Strip Bulldog Adhesion Promoter is aimed at automotive DIYers, body shops, and repair technicians who need a reliable way to prep polyolefin plastic parts for painting without extensive sanding. It suits anyone working on trim, bumpers, and molded plastic components who wants faster prep times, improved topcoat performance, and predictable adhesion with common automotive paints.