Why Contractors Pair 16-Grit Soft + Hard Bond Metal Trapezoids on Lavina Grinders

When you start a floor with 16-grit metal, you’re not chasing shine—you’re chasing control: fast cut, stable scratch pattern, and predictable next steps.

One simple trick many experienced crews use on Lavina grinders is keeping both soft bond and hard bond on hand—at the same grit.

Why run two bonds at the same grit?

Because “concrete hardness” isn’t a single label. On real jobs you often hit:

• Hard, tight areas that glaze diamonds quickly

• Softer zones that chew segments fast

• Mixed slabs, patches, edges, and traffic lanes that behave differently

A 16-grit soft bond keeps cutting when the floor is hard and the diamonds want to stop biting.

A 16-grit hard bond stays stable when the floor is softer and would otherwise wear segments too fast.

Using both lets you maintain a consistent cut without wasting time guessing—or swapping to random tooling.

After 16# metal: don’t jump too aggressively

Once the 16# step is done, the goal is to bridge the scratch pattern so resin can work efficiently.

A common, clean workflow is:

1. 16# metal (soft or hard bond as needed)

2. Hybrid / transitional step (to smooth the deep 16# scratches)

3. Resin pads (build clarity + reflectivity)

Choosing the finish: medium gloss vs high gloss

• Medium gloss: fewer resin steps, faster production, great for commercial floors

• High gloss: more refinement steps, higher clarity, premium look for showrooms and decorative slabs

If you tell us your target finish (medium gloss or high gloss), we can recommend a simple, reliable progression that matches Lavina setups and keeps your steps consistent.

Practical takeaway

Keeping 16# soft + 16# hard in your kit is a low-cost way to reduce downtime and keep the cut consistent across unpredictable slabs—especially on real-world Lavina jobs.