Can Waterjet Cut Glass, Stone, or Composite? What You Need to Know

When most people think of waterjet cutting, they picture metal — clean edges, tight tolerances, and precision engineering. But that’s only part of the story.

The truth is, waterjet cutting can process nearly any material, including glass, stone, ceramics, and composite panels, all without cracking, chipping, or melting. That’s what makes Tri-State Waterjet the go-to resource for architects and manufacturers across industries — from architectural façades to ballistic glazing.

Can Waterjet Cut Glass?

Yes — with unmatched precision and safety. Waterjet cutting uses a cold, high-pressure stream of water and garnet abrasive that slices cleanly through glass without generating heat or vibration.

That means:

• No micro-cracks or fractures

• No heat-affected zones (HAZ)

• Smooth, chip-free edges ready for lamination or framing

Ideal for:

• Architectural glass (doors, partitions, façades)

• Ballistic glazing and laminated systems

• Decorative glass panels and art installations

At Tri-State Waterjet, we routinely cut laminated, tempered, and bullet-resistant glass — maintaining structural integrity and visual clarity throughout.

Can Waterjet Cut Stone and Tile?

Absolutely. Because it’s a cold-cutting process, waterjet technology avoids heat cracking and tool wear common in mechanical cutting or grinding.

Benefits for stone, marble, and granite:

• Cuts up to 6–8 inches thick

• Maintains natural color and texture

• Perfect for custom shapes, logos, and inlays

• No need for post-grinding or edge finishing

This makes waterjet cutting a favorite for architectural cladding, countertops, flooring, and signage where precision joins aesthetics.

Can Waterjet Cut Composites and Laminates?

Yes — in fact, it’s one of the only methods that can do it cleanly. Mechanical saws and routers often cause delamination, fraying, or melting in multi-layer composites.

Waterjet cutting, on the other hand:

• Slices through fiberglass, carbon fiber, ACM, and Kevlar without heat damage

• Leaves sealed edges that don’t require sanding or re-coating

• Maintains fiber orientation and structural integrity

That’s why composite fabricators and ballistic manufacturers rely on waterjet cutting for precision parts, panels, and inserts.

How Thick Can a Waterjet Cut?

Waterjet cutting can handle materials up to 12 inches thick, depending on density. At Tri-State Waterjet, our Flow™ dynamic systems can cut:

• Metal: up to 8–10″

• Glass and stone: up to 6–8″

• Composites and laminates: up to 12″

Even at those depths, we maintain precise tolerances — no taper, no edge distortion.

Why Cold Cutting Matters

Because no heat or friction is generated, waterjet cutting preserves color, texture, finish, and strength. That means no burns, no delamination, no polishing required — and minimal waste.

This also makes it an eco-friendly process, since water and abrasive can be recycled and reused.

Applications Beyond Metal

• Architectural façades and decorative panels

• Ballistic and blast-resistant glazing

• Custom stone or tile inlays

• Composite panel fabrication (ACM, FRP, GFRP)

• Marine, aerospace, and automotive components

No matter what you’re cutting, Tri-State Waterjet provides precision, repeatability, and perfection — across any material, any time.

FAQ:

Q1: Can waterjet cut tempered glass?

Yes — but it must be cut before tempering. Cutting tempered glass will cause it to shatter.

Q2: Can waterjet cutting handle laminated glass?

Yes. We routinely cut multi-layer laminated and ballistic glass using controlled pressure and slow pierce sequencing.

Q3: Does cutting stone with waterjet cause cracking?

No. The cold, steady process prevents vibration and heat buildup that cause micro-fractures.

Q4: What composites can be waterjet cut?

Fiberglass, carbon fiber, ACM panels, Kevlar, and other reinforced laminates.

Q5: Is waterjet cutting better than CNC routing for composites?

Yes — it’s cleaner, more accurate, and doesn’t fray or melt composite fibers.