SEM Black Flexible Bumper Coater Spray 12 oz — OEM-Style Textured Finish, Flexible Adhesion

SEM 39103 Black Flexible Bumper Coater is an aerosol spray that restores and renews faded plastic bumpers and exterior trim to a durable OEM-style black finish.

Designed for automotive professionals and DIYers, this 12 oz. aerosol delivers a flexible, factory-like coating formulated specifically for plastic bumpers and cladding. It bonds to most automotive plastics without cracking or peeling, recreating the original textured black appearance while resisting everyday wear. The fast-drying formula simplifies touch-ups and full-panel restorations without the need for expensive parts replacement.

How does this product duplicate an OEM bumper finish?

SEM 39103 uses a blend of resins and pigments tuned to mimic factory black trims. Applied in thin, even coats it creates a textured, low-gloss surface that matches original equipment appearance and hides scuffs.

• Pre-tinted black to match common OEM shades
• Textured finish that conceals surface imperfections
• Adhesion additives tailored for automotive plastics
• Produces consistent results with light sanding and proper prep

Will the coating stay flexible and resist cracking?

The formula is engineered for flexibility so it moves with modern plastic bumpers instead of becoming brittle. That flexibility reduces the chance of cracking or flaking under thermal expansion and normal impacts.

• Elastic film resists splitting during flexing
• Maintains integrity across temperature changes
• Suitable for both rigid and semi-flexible plastic substrates

What surface prep and application steps give the best results?

Good surface prep is essential: clean, degrease, and scuff the plastic to promote mechanical adhesion. Apply multiple light coats from the recommended distance, allowing flash time between passes for smooth, even coverage.

• Clean with a plastic-safe degreaser and dry thoroughly
• Scuff with fine-grit abrasive or scuff pad for adhesion
• Shake can thoroughly and spray in 2–4 light coats, 8–10 inches away
• Allow recommended dry time before handling or reassembly

How durable is the finish against road wear and UV exposure?

The finish offers strong resistance to common environmental stresses like road grime, mild solvents, and everyday UV exposure when properly applied. It’s built for exterior use, but periodic maintenance and protective washes extend its appearance life.

• Resists fading from routine sun exposure
• Withstands light chemical exposure and cleaning
• Best longevity when washed and waxed according to automotive care guidelines

Who is this for: SEM 39103 is aimed at automotive repair shops, bodywork technicians, and car owners who want a cost-effective way to restore or refresh black plastic bumpers, side molding, and trim without replacing parts. It’s especially useful for vehicles with faded or scuffed black plastic where a factory-like texture and flexible durability are needed. Choose this 12 oz. aerosol when you need a fast, reliable restoration that balances professional-grade performance with DIY convenience.

Product details:

• Manufacturer: SEM
• Part Number: 39103
• Size: 12 oz. aerosol can
• Color: Black, textured OEM-style finish