The Challenge
What Floor Prep Contractors Struggle With
Three pain points we hear from grinding contractors in 40+ countries - and the tooling that solves them.
Slow Coating & Epoxy Removal
Old epoxy, glue and paint resist standard grinding and waste hours of machine time on every job.
Dust & Site Cleanliness
Dry grinding fills the space with concrete dust; clients now demand controlled, clean jobs.
Uneven Surface Profile
Inconsistent scratch pattern leaves the floor unready for coating or polish - and callbacks follow.
Recommended Tools
Tool Matrix by Application
Pick your process step - each card lists the Diaflex tools built for concrete floor grinding.
Grinding
- PCD Grinding Disc
- Metal Bond Grinding Shoe
- Transition Disc
- Scanning Segment
Material Match
Recommended Tool by Floor Condition
Bond and grit change with the slab. Use this as a starting point; our engineers fine-tune per machine.
| Floor Condition | Tool | Bond | Grit |
|---|---|---|---|
| New Concrete | Metal Bond Shoe | Hard | #30–#60 |
| Old Epoxy | PCD Disc → Metal | - | Coarse |
| Terrazzo | Resin Pad | Medium | #50–#3000 |
| Soft / Green Concrete | Metal Bond Shoe | Hard | #16–#30 |
Technical Tips for Floor Grinding
1
Start with PCD for Coatings
PCD discs strip epoxy and glue far faster than diamond before metal-bond grinding begins.
2
Match Bond to Hardness
Hard concrete needs soft bond; soft/green concrete needs hard bond to avoid glazing or rapid wear.
3
Progress Grits in Sequence
Grind #30 → #60 → #120, then polish #50 → #200 → #800 → #1500 → #3000 for a consistent finish.
4
Control Dust
Use a HEPA vacuum or wet method to keep the site clean, safe, and compliant.
Case Study · Concrete Floor Grinding
Concrete Contractor in Australia
Used: PCD Grinding Disc
Challenge: Aging epoxy floor in a busy mall parking garage
▲ Remove Epoxy 40% Faster"We've switched our entire coating-removal crew to Diaflex PCD discs. They strip epoxy 40% faster and last twice as long as the previous brand."
- Operations Lead, Australian Concrete Contractor
- Operations Lead, Australian Concrete Contractor
Resource
Concrete Floor Grinding Guide
Concrete Floor Grinding Guide (PDF)
Bond chart, grit sequence, and tool specs for PCD, metal and resin systems.
FAQ
Concrete Floor Grinding Questions
What removes epoxy from concrete fastest?
PCD grinding discs strip epoxy and coatings fastest before metal-bond grinding; they outpace standard diamond by a wide margin.
How do I choose bond for concrete hardness?
Hard concrete → soft bond; soft/green concrete → hard bond. The wrong bond glazes or wears out too fast.
Wet or dry concrete grinding?
Dry with a HEPA vacuum is common indoors; wet gives a cleaner profile but needs slurry control.
What is the polishing grit sequence?
Grind #30 / #60 / #120, then resin polish #50 / #200 / #400 / #800 / #1500 / #3000.
Do your tools fit HTC / Lavina / Husqvarna?
Yes - our shoes fit major floor grinder brands; just specify your machine model when ordering.
What is the MOQ for grinding tools?
Flexible MOQ from 50pcs per specification. Trial orders at lower quantities are accepted for new distributors.