Overview
Built for the job.
Chip Guard is a durable acrylic coating that matches fine to coarse OEM textures and protects lower panels from impact, chipping, and abrasion.
SEM 39813 Chip Guard is a 20-oz aerosol spray formulated for fine-medium texture satin black protection on repaired panels. It provides an immediate barrier against stone chips, rust and UV exposure, making it ideal for pre-coat preparation in collision repair.
The formulation offers a flash time of 5-10 minutes between coats, allowing rapid build-up without long downtime. With a VOC content of 601 g/L, the chip guard adheres to ABS, fiberglass, OEM and SMC substrates, delivering consistent coverage across diverse panel materials. The aerosol delivery ensures even application and minimal overspray.
Due to its classification as acute toxicity, carcinogen, flammable gas and other hazards, use requires eye protection, gloves, protective clothing and a respirator in a well-ventilated area. Follow the SDS H-statements for handling, storage and first-aid procedures.
Why Pros Choose SEM SEM
- Protects lower panels from impact, chipping and abrasion
- Duplicate a wide variety of factory textures
- Full texture spectrum from fine to coarse
- Excellent chip and impact protection
How to Use
For solvent base coats, urethane and enamel single stage paints and lacquers
- Clean the substrate (ABS, fiberglass, OEM, SMC) with a VOC-compliant cleaner and ensure it is dry.
- Apply the first coat of SEM® 39813 Chip Guard using spray equipment; maintain proper atomization for a fine-medium texture.
- Allow a flash time of 5-10 minutes before applying the next coat.
- Repeat coating as needed, observing the same 5-10 minute flash interval between each layer.
- After completion, clean spray equipment with VOC-compliant cleaning materials in accordance with local regulations.
Compatibility
Compatible paint systems: Acrylic.
Specifications
| Part No. | 39813 |
|---|---|
| Product Line | SEM |
| MFR Model | 39813 |
| Standard/Approvals | California PROP65 Warning: Reproductive Harm | GHS02 | GHS04 | GHS07 | GHS08 | OSHA HCS Hazard |
| Application | For solvent base coats, urethane and enamel single stage paints and lacquers |
| Manufacturer | SEM |
| UPC | 646786398131 |
| Brand | SEM® |
| Maximum Sale Quantity | 12 |
| Maximum Sale Day | 7 |
| Texture | Fine-Medium |
| Color | Satin Black |
| Container Size (oz) | 20 |
- Flash Time
- 5 - 10 min between coats
- VOC
- 601 g/L
- Shelf Life / Storage
- 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 are compatible with SEM® 39813 Chip Guard?
It can be applied to ABS, fiberglass, OEM panels, and SMC (sheet-molded compound) surfaces.
How long should I wait between coats?
The flash time is 5 - 10 minutes; allow this interval before applying the next coat.
What personal protective equipment is required when using this aerosol?
Wear eye protection, chemical-resistant gloves, protective clothing, and a respirator suitable for organic vapors.
Are there any special safety hazards I need to be aware of?
The product is classified with acute toxicity, aquatic toxicity, aspiration hazard, carcinogenicity, compressed gas pressure, eye damage, flammability, organ toxicity, reproductive toxicity, and skin corrosion. Follow all H-statements (H222, H280, H304, H315, H318, H336, H351, H361) on the label.
Documents & Safety
- Safety Data Sheet (SDS)
- sem_39793_catalog.pdf
- sem_39803_specification_sheet.pdf
- sem_39793_manual.pdf
Danger: This aerosol contains highly flammable propellant and chemicals that are toxic by inhalation, can cause severe skin and eye damage, may be aspirated into the lungs, and are classified as carcinogenic and harmful to aquatic life. Wear safety glasses or a face shield, chemical-resistant gloves, protective clothing (coveralls), and use a suitable respirator when applying. 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 39813. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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