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SEM

SEM Dual-Mix 39377 2-Component Seam Sealer, 7 oz Cartridge, Liquid, Dark Gray, 10 min at 70 deg F Ap

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Overview

Built for the job.

Dual-Mix™ Seam sealer is a medium viscosity, two-component, epoxy sealer for sealing interior or exterior seams, joints and voids.

Why Pros Choose SEM 2-Component

  • Dual-Mix™ forever warranty
  • OEM recommended
  • Direct to metal
  • Paintable immediately
  • Will not shrink, harden or crack
  • Non-sag formula duplicates OEM sealers
  • Fast cure increases production
  • Sprayable for additional versatility
  • Excellent adhesion to bare metal or primed surfaces

How to Use

For use on bare metal, OEM finish, epoxy primer and DTM urethane primer

Compatibility

Compatible substrates: Bare Metal, Primed Surface.

Compatible paint systems: Epoxy.

Specifications

Technical specifications for Dual-Mix™ 39377 2-Component Seam Sealer, 7 oz Cartridge, Liquid, Dark Gray, 10 min at 70 deg F Application
Part No. 39377
Product Line SEM
MFR Model 39377
Standard/Approvals GHS07 | GHS08 | OSHA HCS Hazard | OEM Approved | California PROP65 Warning: Cancer and Reproductive Harm
Application For use on bare metal, OEM finish, epoxy primer and DTM urethane primer
Manufacturer SEM
UPC 646786393778
Brand Dual-Mix™
Maximum Sale Quantity 6
Maximum Sale Day 7
Applicable Materials Bare Metal, Epoxy Primer, DTM Urethane Primer
Composition 30 to 40% Bisphenola(chloro)oxirane Polymer, 5 to 7% Fumed Silica, 1.5 to 5% Epoxy Resin, 1.5 to 5% Modified Diglycidal Ether, >=1.5 to <5% 2,4,6-tris(dimethylaminomethyl)phenol, 1 to 1.5% 1,3 to Bis(2,3-epoxypropoxy)-2,2-dimethylpropane, >=0.1 to <1% Castor Oil Glycidal Ether, >=0.1 to <1% [3-(2,3-epoxypropoxy)propyl]trimethoxysilane
Application Time 10 min at 70 deg F
Paintable (Y/N) Yes
Sprayable (Y/N) Yes
Odor/Scent Amine
Color Dark Gray
Setting Time 15 min at 70 deg F
Flash Point 257 deg C
Container Size (oz) 7
Container Type Cartridge
Form Liquid
Temperature Rating (deg F) 70
Type 2-Component
Curing Time 1 hr at 70 deg F

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 Bare Metal, Primed Surface. 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?

The curing time for SEM is 1 hr at 70 deg F. 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 come in?

This listing ships SEM in a 7 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 39377. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.

Documents & Safety

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.
Specifications

Full data

BrandSEM
Part #39377
UPC646786393778
ApplicationFor use on bare metal, OEM finish, epoxy primer and DTM urethane prime
Size7
ColorDark Gray
OriginUS
ConditionNew
Applicable MaterialsBare Metal, Epoxy Primer, DTM Urethane Primer
Frequently asked

Good to know

SEM is compatible with Bare Metal, Primed Surface. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.
The curing time for SEM is 1 hr at 70 deg F. Drying and curing times may vary with temperature, humidity, and film thickness — always consult the Technical Data Sheet (TDS) for exact cycle conditions.
This listing ships SEM in a 7 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.

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