Substrate Technology
CONSTRUCTION EQUIPMENT & SUPPLIES
Phone:
+1 (815) 941-4800
Address:
1384 Bungalow Rd.
Morris, Illinois, U.S.A.

Substrate Technology, Inc.

Prep/Master® Grinders, Dust Collectors, and Diamond Systems

Substrate Technology

This is our own line — the equipment and tooling we build, brand, and stand behind. As the makers of the Prep/Master® grinder and the source for STI diamond tooling, polishing systems, and patented terrazzo pads, we bring you products engineered from decades of real-world surface prep experience — and backed by experts who actually know the work. Call and talk to a real surface-prep expert, not a call center.

The Prep/Master® Grinder

The heart of our line: the Prep/Master® grinder — our own low-maintenance, gear-to-gear concrete grinder and polisher, built to last and available in a range of sizes. We design it, build it, and support it in-house. Learn more about the Prep/Master.

FL-07 Diamond Pads — Our #1 Patented Pad

Our best-selling pads, period: the FL-07 diamond pads are patented and exclusive to Substrate Technology — you can't buy them anywhere else. They're the go-to polishing pad for contractors who know them, fitting a wide range of grinders, and they deliver a consistent, high-quality polish step after step. We also offer them in a ring-type version for hand grinders for edges and detail work. There's one source for FL-07 — and it's us.

STI Diamond Systems & Tooling

Our color-coded diamond polishing systems (CLC, EGT, and TPS) take you from grind to polish on concrete and terrazzo — and we make the full range of STI diamond tooling to go with them:

  • Diamond tooling — grinding segments, prep tools, and polishing pads
  • Surface prep tooling — for coating and adhesive removal
  • EG attachment holders, adapters, and the parts that tie it all together

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Prep/Master Jr Replacement Dust Band

  • Replacement dust band for the Prep/Master® Jr grinder
  • Restores the dust seal around the grinding head
  • Keeps dust contained for cleaner, healthier work
  • The correct part for your Jr

Prep/Master Horseshoe Weights

  • Horseshoe-designed replacement weights for the Prep/Master® 28 series and 30 series grinders
  • 40 lbs each
  • Sold individually — order the number you need to replace
  • Genuine Prep/Master parts — made by Substrate Technology
  • The correct weight and fit for your machine

Prep/Master Pocket Weights

  • Pocket-style replacement weights for the Prep/Master®
  • Fits: 24 series, 44 series, and older-style 28 & 30 series
  • 42 lbs each
  • Sold individually — order the number you need to replace
  • Genuine Prep/Master parts — made by Substrate Technology

STI Terrazzo 9 Polishing Pads

  • 9mm thick diamonds — built for medium to heavy machines
  • Long life — 3,000 to 4,000 sq ft average lifespan
  • High gloss finish from the newly designed pattern
  • Removes swirl marks for a clean, even finish
  • Reaches corners and wall angles — polish the areas most pads can’t
  • Best on: marble, travertine, and terrazzo

Patented, Exclusive Terrazzo Pads

Some of our products you can’t get anywhere else. Our patented STI terrazzo pads — like Terrazzo+, Terrazzo REDZ, and our terrazzo polishing pads — are exclusive to Substrate Technology. We hold the patent, so no other supplier can offer them. See our terrazzo tooling.

Built and Backed by STI

When you buy STI, you get more than a product — you get the company behind it: in-house engineering, Lavina-certified, nationwide service, a 1-year repair warranty, and real experts on the phone. Service. Support. Success.

Order STI Equipment Today

Call (815) 941-4800 x 1 or fill out our contact form. See our machines, diamond systems, and diamond tooling.