Overview
Built for the job.
Bumper coater aerosols are a line of advanced coatings formulated to restore the OEM finish on automotive bumpers and plastic cladding.
Bumper Coater™ 39173 Trim Paint is a 16-oz aerosol formulated for restoring or refinishing trim, bumpers, and plastic components. The low-viscosity spray delivers a uniform dark smoke finish on OEM plastics and primed substrates, making it suitable for quick touch-ups and full panel applications in collision repair.
Technical advantages include a flash time of 5-10 minutes between coats and coverage of approximately 10 sq ft per can at 1 mil dry film thickness. The formulation is compatible with OEM plastics, pre-primed surfaces, and standard automotive primers, providing consistent adhesion without additional surfacing steps.
Due to a flash point of -42 °C and a VOC content of 701 g/L, proper ventilation is required during use. Personnel must wear eye protection, gloves, protective clothing, and a respirator as specified in the SDS (H222, H280, H304, etc.). Follow standard first-aid procedures for inhalation, skin, eye, or ingestion exposure.
Why Pros Choose SEM SEM
- No adhesion promoter required
- No primer required
- Excellent adhesion and durability
- Matches OEM appearance
- Retains flexibility
- Great coverage
- Professional results
Application Guide
- Clean the bumper surface and ensure it is free of dust, grease, and loose material; verify that the substrate is OEM plastic or primed as required.
- Apply the first coat of Bumper Coater™ 39173 Trim Paint using a smooth, even spray pattern from the aerosol can.
- Allow the coat to flash for 5-10 minutes before applying subsequent coats.
- Repeat spraying until the desired coverage is achieved (typically 1-2 coats), observing the same flash time between each coat.
- After finishing, clean the nozzle and any equipment with cleaning materials that meet VOC regulations.
Compatibility
Compatible substrates: Plastic.
Specifications
| Part No. | 39173 |
|---|---|
| Product Line | SEM |
| MFR Model | 39173 |
| Standard/Approvals | California Pro65 Warning: Cancer and Reproductive Harm |
| Manufacturer | SEM |
| UPC | 646786391736 |
| Brand | Bumper Coater™ |
| Solids Content | 8.6% |
| Color | Dark Smoke |
| Container Size (oz) | 16 |
| Curing Time | 5 to 10 min Flash Time |
| Coverage (sq-ft) | 20 |
- Flash Time
- 5-10 min between coats
- Coverage
- 10 sq ft per can @ 1 mil dry film thickness
- VOC
- 701 g/L
- Compatible Substrates
- OEM, plastic, primer
About SEM
SEM Products specializes in paint adhesion systems, flexible coatings, and plastic repair — the go-to choice for interior and trim refinishing.
Frequently Asked Questions
What substrates can Bumper Coater™ 39173 be applied to?
The aerosol is formulated for OEM plastics and any surface that has been primed. It adheres to standard automotive plastic trim and primer-coated substrates.
What is the recommended flash time between coats?
Allow 5-10 minutes of flash time before applying additional layers.
How much area does one 16 oz can cover?
One can provides approximately 10 sq ft of coverage at a film thickness of 1 mil dry film thickness (dft).
What personal protective equipment is required when spraying?
Wear eye protection, chemical-resistant gloves, protective clothing, and a respirator suitable for organic vapors.
Can the coating be sanded or painted over?
Yes. After the flash time has elapsed and the film is dry, the surface can be sanded and top-coated with compatible automotive paints.
Documents & Safety
- Safety Data Sheet (SDS)
- bumpercoater_39073_specification_sheet.pdf
- 39023%20-%2039583%20TPO-Direct%20Bumper%20CoatersUSA.pdf
Danger - This aerosol contains highly flammable solvent vapors and toxic chemicals that can cause serious health effects if inhaled, swallowed, or contacted with skin or eyes. Wear safety glasses or goggles, chemical-resistant gloves, a full-length protective suit or coveralls, and use a suitable respirator rated for organic vapors. Avoid breathing mist, prevent skin contact, and keep away from open flames or sparks. If inhaled, move to fresh air; if on skin, wash thoroughly with water; if in eyes, rinse for several minutes; if swallowed, seek medical help immediately. Always refer to the full SDS before use.
Why Buy from autofxmart
- Authorized distributor — authentic, factory-fresh stock.
- Fast US shipping — most orders ship within 1 business day.
- 30-day returns — buy with confidence.
- Pro-shop pricing — bulk discounts available on request.
- Expert support — questions? Email us at support@autofxmart.com.
How to apply
Steps
1Clean and degrease the surface, then scuff as needed.
2Mask off surrounding panels and trim.
3Mix to the product's ratio and strain.
4Apply 2–3 even coats, flashing between each.
5Let cure fully before sanding, buffing, or assembly.
Specifications
Full data
Frequently asked
Good to know
SEM is compatible with Plastic. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.
The curing time for SEM is 5 to 10 min Flash Time. Drying and curing times may vary with temperature, humidity, and film thickness — always consult the Technical Data Sheet (TDS) for exact cycle conditions.
This listing ships SEM in a 16 (CN) container. Check the autofxmart catalog for other sizes and bulk pricing.
Most in-stock orders for SEM ship the same or next business day from our US warehouse. Expedited options are available at checkout. Freight-class items may require an additional 1–2 days for carrier pickup.
Yes. autofxmart is an authorized distributor of SEM products. Every unit is factory-fresh, sealed, and backed by the manufacturer's standard warranty. If you have a concern, contact support@autofxmart.com and we will make it right.
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