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SEM Products SA350CG Qlock-R 3 Inch Coarse Sanding Discs 50 Grit 25 Pack

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

SA350CG
07/10/2036 11:39 PM
Sale Price

$90.11

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

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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 SA350CG Qlock-R sanding discs are professional-grade abrasives designed for fast material removal and consistent finishing across all substrate types. These 3-inch diameter discs feature advanced ceramic abrasive technology for superior cutting performance and extended disc life.

Key Features:

  • 50 grit coarse abrasive for aggressive material removal
  • Advanced ceramic grain technology for faster cutting and longer disc life
  • Reinforced backing provides durability during high-speed machine use
  • Qlock-R quick-change attachment system for fast disc changes
  • Purple-colored discs for easy grit identification
  • 3-inch diameter ideal for detail work and tight areas
  • Consistent finish quality across metal, plastic, fiberglass, and composite substrates

Each box contains 25 discs. These professional sanding discs are designed for use with air or electric die grinders and right-angle sanders equipped with Qlock-R quick-change backing pads. The ceramic abrasive construction delivers superior performance in automotive refinishing, bodywork preparation, and general surface preparation applications.

Hard to find part for live well...very friendly website. Smooth transaction. Would shop here again.

good service

Quick and easy

Took a little bit to get shipped but other than that good experience.

Great service

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