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SEM
SEM Strong-Strands - 40581
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Overview
Built for the job.
STRONG STRANDS BRIDGING FILLER
Why Pros Choose SEM
- A fiber enriched polyester filler that offers exceptional repair qualities.
- Added strength for SMC, fiberglass, PP, aluminum & metal
- Eliminates swelling, halos, & bullseyes
- Excellent corrosion control
Compatibility
Compatible substrates: Aluminum, Fiberglass, SMC.
Compatible paint systems: Polyester.
Specifications
| Part No. | 40581 |
|---|---|
| Product Line | SEM |
| Manufacturer | SEM |
| UPC | 646786405815 |
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 be used on?
SEM is compatible with Aluminum, Fiberglass, SMC. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.
How fast does autofxmart ship SEM?
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.
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?
The MPN for SEM is 40581. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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.
Cure & dry schedule
Timing at 77°F
Work time
4 min
Sandable
20 min
Cured
30 min
How to apply
Steps
1Sand to bare metal and clean the repair.
2Mix filler and hardener to one uniform color.
3Spread thin layers within the work time.
4Let set, then block-sand through the grits.
5Prime before applying topcoat.
Specifications
Full data
Frequently asked
Good to know
SEM is compatible with Aluminum, Fiberglass, SMC. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.
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 40581. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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