Business Hours & Associations

Regular Business Hours:
7:00 a.m. - 4:00 p.m. C.S.T.

Association Members of:

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Buy, Rent, or Sell Sweepers & Scrubbers

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Determine your application… 
then, pick your diamond system.

Concrete Prep

Concrete Polishing

Concrete Prep

Dry Polishing EGT Diamond System

Wet Polishing PMW Diamond System

Wet-Dry Polishing STI Classic (CLC) Diamond System

Terrazzo Planetary Marble & Terrazzo Restoration 
Terrazzo (TPS) Diamond System PLP Diamond System Marble & Terrazzo Restoration System

It's a System. Not a Machine.

STI is the top leader in the industry who has developed a COMPLETE POLISHING SYSTEM from "prep to polish" with proven results. For surface prep, polished concrete, terrazzo, marble, and stone flooring, we offer superior machines and diamond systems that work hand-in-hand with each other to go beyond what you expected.

Through two decades of product research & development, as well as experience on the job, the P/M line of products was born. Every customer of ours knows that we only manufacture high quality products that meet our strict standards.

You will find grinders and diamond systems that are truly the best in the industry and will give you, as well as your clients, the floor you're looking for!

Upcoming Tradeshows


Sign up for commercial equipment financing!Grinders –
Low Maintenance & Made to Last

STI produces very high quality grinders / polishers that are made to last a lifetime. Prep/Master® gearboxes are made of cast aluminum and contain no belts or pulleys that break down in the middle of the night. It's a total gear-to-gear system.

Available in a range of sizes, there is always a perfect P/M machine for any project size or need. Every P/M is designed with 20 years of research and development to give you the very best the industry can offer. P/M machines can do everything from prep to polish!


P/M Machines - Electric & Propane Models
Over 2,000 SF (186 m2) Over 5,000 SF (465 m2) Over 10,000 SF (929 m2) Over 20,000 SF (1,858 m2)
STI-2807 (electric) STI-2420 (electric) STI-3030 (electric) STI-4430 (electric)
STI-2807 STI-2420 STI-3030 STI-4430
STI-2818LP (propane) STI-2418LP (propane) STI-3038LP (propane) STI-4438LP (propane)
STI-2818LP propane STI-2418LP propane STI-3038LP propane STI-4438LP propane
3030-RC (remote control) 4430-RC (remote control)
PM-3030-RC PM-4430-RC 

Contact Information

Substrate Technology, Inc.
1384 Bungalow Rd.
Morris, Illinois 60450

+1.815.941.4600 Fax