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 39803 Chip Guard is a clear, fine-medium texture aerosol coating designed to protect repaired panels from chips and scratches during the finishing process. Formulated for spray application, it provides an even barrier that can be layered between primer and topcoat on a variety of repair substrates.
The product offers a flash time of 5-10 minutes between coats, allowing rapid build-up while maintaining workability. With a VOC content of 601 g/L, it is compatible with ABS, fiberglass, OEM sheet metal, and SMC composites, delivering consistent coverage on both painted and bare surfaces. Proper storage in a cool, dry, well-ventilated area extends shelf life.
Due to its acute toxicity and flammable nature (flash point -103 °C), use requires eye protection, gloves, protective clothing, and a respirator in a ventilated workspace. Follow H-statements H222, H280, H304, H315, H319, H336, H361, and H373 for safe handling.
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
- Ensure the target surface (ABS, fiberglass, OEM, SMC) is clean, dry, and free of contaminants.
- Apply Chip Guard using a spray gun or aerosol can in a fine-medium texture. Maintain consistent overlap for even coverage.
- Allow 5-10 minutes flash time before applying the next coat. Apply additional coats as needed to achieve desired protection.
- After the final coat, allow sufficient cure time per shop standard before handling. Cleanup of equipment with a VOC-compliant solvent or cleaning material.
Compatibility
Compatible paint systems: Acrylic.
Specifications
| Part No. | 39803 |
|---|---|
| Product Line | SEM |
| MFR Model | 39803 |
| 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 | 646786398032 |
| Brand | SEM® |
| Maximum Sale Quantity | 12 |
| Maximum Sale Day | 7 |
| Texture | Fine-Medium |
| Color | Clear |
| Container Size (oz) | 20 |
- Flash Time
- 5 - 10 min between coats
- VOC
- 601 g/L
- 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 39803 Chip Guard be applied to?
It is compatible with ABS, fiberglass, OEM plastics and SMC (sheet-molded compounds).
How long do I need to wait between coats?
The flash time is 5 - 10 minutes; you can apply the next coat after this interval.
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 I store SEM 39803 Chip Guard to maintain its shelf life?
Store the can in a cool, dry place with adequate ventilation, away from heat sources or open flames.
Documents & Safety
- Safety Data Sheet (SDS)
- sem_39793_catalog.pdf
- sem_39803_specification_sheet.pdf
- sem_39793_manual.pdf
Signal word: Danger. Wear safety glasses or goggles, chemical-resistant gloves, protective clothing (coveralls or lab coat), and a suitable respirator when spraying. This product is highly flammable, can cause serious eye injury, skin burns, respiratory irritation if inhaled, and is toxic if swallowed or aspirated; it also poses risks to aquatic life. In case of inhalation, move the person to fresh air; for skin contact, wash thoroughly with water; for eye exposure, rinse eyes continuously for several minutes; if ingested, 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
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 39803. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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