SEM
SEM 39793 Chip Guard, Opaque, Heavy Medium-Coarse Texture, 20 oz Aerosol Can
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This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.Tap for details → P65Warnings.ca.gov
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Overview
Built for the job.
Heavy Texture Chip Guard is an aerosol coating that matches medium to coarse OEM textures and protects lower panels from impact, chipping, and abrasion.
SEM 39793 Chip Guard is a 20 oz aerosol coating formulated for heavy, medium‑coarse texture repairs. It is designed to protect repaired areas from chips and scratches on panels and components that will be repainted.
The product offers a rapid flash time of 5–10 minutes between coats, enabling fast build‑up on compatible substrates such as ABS, fiberglass, OEM sheet metal, and SMC. With a VOC content of 601 g/L, it provides a dense, opaque barrier that adheres well to the listed materials and supports efficient coverage in a single pass.
Use in a well‑ventilated area and wear eye protection, chemical‑resistant gloves, protective clothing, and a respirator as required by the SDS. The aerosol is stored as a compressed gas with a flash point of –103 °C; handle according to the listed H‑statements (H222, H280, H304, H315, H319, H336, H351, H361).
Why Pros Choose SEM SEM
- Excellent chip and impact protection
- Duplicate a variety of factory textures
- Dries fast
- Simple aerosol application
- Medium to coarse texture
How to Use
For use to properly prepped, primed and painted surfaces, SMC and fiberglass
- Ensure the substrate (ABS, fiberglass, OEM, SMC) is clean, dry, and free of contaminants before coating.
- Apply the first coat of SEM 39793 Chip Guard using a smooth, even spray technique.
- Allow a flash time of 5–10 minutes before applying the next coat.
- Repeat the spray application for additional coats as required, maintaining the same 5–10 minute flash interval between each coat.
- After the final coat, allow the part to cure in a well‑ventilated area; no specific cure time is provided beyond the flash interval.
- Dispose of the aerosol can according to local regulations; clean any equipment with VOC‑compliant cleaning materials as indicated.
Specifications
| Part No. | 39793 |
|---|---|
| Product Line | SEM |
| MFR Model | 39793 |
| Standard/Approvals | GHS02 | GHS04 | GHS07 | GHS08 | OSHA HCS Hazard |
| Application | For use to properly prepped, primed and painted surfaces, SMC and fiberglass |
| Manufacturer | SEM |
| UPC | 646786397936 |
| Brand | SEM® |
| Maximum Sale Quantity | 12 |
| Maximum Sale Day | 7 |
| Texture | Heavy, Medium-Coarse |
| Color | Opaque |
| Container Size (oz) | 20 |
- Flash Time
- 5–10 min between coats
- VOC
- 601 g/L
- Shelf Life
- Store in a cool, dry place with adequate ventilation
- Compatible Substrates
- ABS, fiberglass, OEM, SMC
- Cleanup
- Use cleaning materials compliant with VOC regulations
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 SEM® 39793 Chip Guard be applied to?
It is compatible with ABS, fiberglass, OEM plastics, and SMC (sheet‑molded compound) surfaces.
How long should I wait between coats?
The recommended flash time is 5–10 minutes between coats.
What personal protective equipment is required when spraying this product?
Wear eye protection, chemical‑resistant gloves, protective clothing, and a respirator approved for organic vapors.
How should the chip guard be stored to maintain its shelf life?
Store the can in a cool, dry location with adequate ventilation, away from sources of ignition.
Documents & Safety
- Safety Data Sheet (SDS)
- sem_39793_catalog.pdf
- sem_39793_specification_sheet.pdf
- sem_39793_manual.pdf
Danger: This aerosol contains toxic solvents and flammable propellant. Wear safety goggles, chemical‑resistant gloves, protective clothing, and a suitable respirator. The product can cause serious eye damage, skin burns, respiratory irritation, aspiration hazards if swallowed, and is harmful to aquatic life. It is highly flammable with a flash point of –103 °C. 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
This listing ships SEM in a 20 (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.
The MPN for SEM is 39793. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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