SEM
SEM 40523 Rubberized Undercoating, 24 oz, Black, Low VOC VOC, Aerosol, Rubberized (Y/N): Yes
No reviews yet
Authorized dealer
Ships today
30-day returns
Overview
Built for the job.
Low VOC Rubberized Undercoating is a premium, easy to apply, paintable, asphalt-free coating for sound dampening, chip resistance, rust and corrosion protection. Aerosol offers the dual texture formula to produce two distinct textures, heavy or light.
Why Pros Choose SEM
- Dual texture formula
- 5 state compliant
- Hot and humid climate friendly
- Paintable without bleed-through
- Pinhole free
- 1 percent asphalt free
- Sound dampering properties help reduce road noise
- Chip and corrosion resistant
- Uniform final appearance
- Aerosol includes straw for tight spots
How to Use
For use on properly prepped and primed surfaces, steel, aluminum, SMC and fiberglass
Specifications
| Part No. | 40523 |
|---|---|
| Product Line | SEM |
| MFR Model | 40523 |
| Standard/Approvals | California Pro65 Warning: Cancer and Reproductive Harm |
| Application | For use on properly prepped and primed surfaces, steel, aluminum, SMC and fiberglass |
| Manufacturer | SEM |
| UPC | 646786405235 |
| Brand | SEM® |
| Maximum Sale Quantity | 6 |
| Maximum Sale Day | 7 |
| Color | Black |
| Container Size (oz) | 24 |
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 size does SEM come in?
This listing ships SEM in a 24 (CN) container. Check the autofxmart catalog for other sizes and bulk pricing.
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 40523. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
Documents & Safety
- Safety Data Sheet (SDS)
- sem_40523_specification_sheet.pdf
- 40523%20Low%20VOC%20Rubberized%20UndercoatingUSA.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.
Cure & dry schedule
Timing at 77°F
Flash
10 min
Tape-free
1 hr
Recoat
30 min
Full cure
24 hr
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 24 (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 40523. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
What Our Customers Say
Thanks! Your review was submitted and will appear after moderation.
No reviews yet — be the first to review this product.
