42043 High-Build Primer Surfacer, 20 oz, White, 11 sq-ft at 2 mil DFT Coverage, 1 hr Dry Curing
High-Build Primer Surfacer is an elastomeric acrylic coating for priming automotive metal, aluminum, urethane, and plastics.
Why Pros Choose SEM SEM
- Provides superior adhesion
- Excellent filling properties
- Works on multiple substrates, including metal and plastic
- Easy to sand
- Topcoat with most refinish material
How to Use
For use on steel, aluminum, plastic, SMC and fiberglass
Compatibility
Compatible substrates: Aluminum, Plastic.
Compatible paint systems: Urethane, Acrylic.
Specifications
| Part No. | 42043 |
|---|---|
| Product Line | SEM |
| MFR Model | 42043 |
| Standard/Approvals | California PROP65 Warning: Cancer and Reproductive Harm | GHS02 | GHS04 | GHS07,GHS08 | OSHA HCS Hazard |
| Application | For use on steel, aluminum, plastic, SMC and fiberglass |
| Manufacturer | SEM |
| UPC | 646786420436 |
| Brand | SEM® |
| Color | White |
| Container Size (oz) | 20 |
| Curing Time | 1 hr Dry |
| Coverage (sq-ft) | 11 |
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 surfaces can SEM SEM be used on?
SEM SEM is compatible with Aluminum, Plastic. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.
What is the cure or dry time for SEM SEM?
The curing time for SEM SEM is 1 hr Dry. Drying and curing times may vary with temperature, humidity, and film thickness — always consult the Technical Data Sheet (TDS) for exact cycle conditions.
What size does SEM SEM come in?
This listing ships SEM SEM in a 20 (CN) container. Check the autofxmart catalog for other sizes and bulk pricing.
How fast does autofxmart ship SEM SEM?
Most in-stock orders for SEM 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.
Is this SEM product genuine?
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.
What is the manufacturer part number (MPN) for SEM SEM?
The MPN for SEM SEM is 42043. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
Documents & Safety
- Safety Data Sheet (SDS)
- sem_42003_catalog.pdf
- dualmix_39337_service_manual.pdf
- 42043%20High%20Build%20Primer%20WhiteUSA.pdf
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.