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SEM Products 42003 High-Build Primer Surfacer - Black

Manufacturer

SEM Products

<h3>Professional-Grade Refinishing Products Since 1948</h3><p>SEM Products has been revolutionizing the automotive refinishing industry for more than 75 years. Founded by George Sneckner and William (Bill) Elliott, Sneckner Elliot Manufacturing (SEM) opened its doors in Belmont, California to deliver high quality residential paints. The company quickly evolved to become a pioneer in automotive, aerospace, marine, and industrial coatings, earning a reputation for engineering products that reduce repair time, minimize steps, and eliminate waste.</p><p>What sets SEM apart is their commitment to innovation that solves real-world problems. SEM enters automotive aftermarket with Topper, the first flexible coating for restoring or changing the color of vinyl car tops. This breakthrough launched a series of industry-first products that would define modern refinishing standards. Today, SEM Products moves to a new location in Rock Hill, SC bringing the whole team under one roof. This integrated approach allows complete control over product development, manufacturing, and quality assurance.</p><h3>Comprehensive Coating Solutions</h3><p>SEM's extensive product line covers every phase of automotive refinishing. Their <a href="/4250-sem-products-spray-paint-53698">spray paint</a> offerings include everything from custom candy colors to trim restoration formulas, delivering professional results in convenient aerosol formats. For interior restoration work, SEM's <a href="/4250-sem-products-interior-paint-200582">interior paint</a> products like Color Coat and Sure-Coat have become industry standards for refinishing vinyl, leather, plastic, and fabric surfaces. When it comes to surface preparation, SEM's <a href="/4250-sem-products-primers-200810">primers</a> include high-build surfacers, flexible primers, and their innovative Ez Coat system that replicates OEM e-coat finishes.</p><h3>OEM Recommended and Forever Warrantied</h3><p>SEM obtains 53 OEM recommendations covering 221 products. Recommended product categories include panel bonding adhesives, structural impact repair adhesive, foams, plastic repair materials, seam sealers, adhesives, undercoatings, stone guard coatings, and specialty coatings. This extensive OEM approval demonstrates the trust professional collision centers and body shops place in SEM's engineering. Their Dual-Mix product line carries a Forever Warranty, providing unmatched assurance for critical structural repairs.</p><p>Beyond automotive applications, SEM has expanded into aerospace and marine markets with specialized formulations. SEM's waterborne flexible coating system, Aerospace Sure-Coat, is approved Boeing to refinish aerospace interiors. Shortly after, Sure-Coat gains approval from the FAA for all commercial airlines. Whether you're restoring a classic car, repairing collision damage, or refinishing marine vinyl, SEM Products delivers the professional-grade solutions that technicians trust.</p>

Part Number

42003
07/11/2036 1:50 AM
Sale Price

$21.11

4 left at this price

delivery box

Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The SEM Products 42003 High-Build Primer Surfacer is a professional-grade elastomeric acrylic coating designed for automotive refinishing applications. This black primer surfacer provides excellent adhesion and coverage on multiple substrates commonly found in automotive repair and restoration work.

Key Features:

  • Elastomeric acrylic formulation provides flexibility and durability
  • High-build formula fills minor surface imperfections efficiently
  • Bonds to automotive metal, aluminum, urethane, and plastic substrates
  • Black color makes it ideal for dark-colored topcoats
  • Professional-quality primer surfacer for body shop and restoration use

This primer surfacer is designed to prepare surfaces for final paint application while providing a uniform base that enhances topcoat adhesion and appearance. The high-build properties help reduce the need for extensive filling and sanding, saving time during the refinishing process.

It has been good, thanks

Good price

great prices, hopefully fast shipping!Someone ripped of my passenger side taillight housing and I need the replacement

Quick and easy!

Quick checkout and very detailed item specs

quick and easy

N/;A

Always great to do business with

Easy ,fast

good

So far, so good - I think I found the product I wanted to order.

Found what I needed. Order process was simple enough. Good experience

Fast and easy

Awesome as always

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