Product Description

The 13-Inch Venom Fat Boy Sponge Pads are professional large-format surface polishing and scratch-repair pads designed for fabricators and restoration crews working on full-size slabs, large flat surfaces, and stone flooring.

Venom Fat Boy Sponge Pads were developed as a surface-first polishing system, and the 13-inch size takes that concept further by allowing fabricators to polish wide areas quickly and evenly using floor machines and large surface polishers.

Using a diamond-sponge style fiber construction, Venom Fat Boy Sponge Pads distribute pressure evenly across a broad surface area. This floating, sponge-backed design reduces edge loading and helps maintain uniform clarity and finish consistency, even across large slabs and floors.

The 13-inch size is commonly used for polishing:

• Full quartz slabs

• Quartzite slabs

• Granite slabs

• Stone flooring and commercial surfaces

Venom Fat Boy Sponge Pads have been in the professional stone market for over six years and continue to gain adoption as more shops move toward large-format slab fabrication and floor-machine polishing.

Design & Performance

Built with a diamond-sponge style fiber construction, Venom Fat Boy Sponge Pads provide:

• Wide, even surface contact

• High water retention for cooler polishing

• Forgiving pressure distribution

• Smooth blending across large areas

• Consistent surface clarity

This design makes the 13-inch Fat Boy Sponge Pad ideal for resurfacing, scratch refinement, blending, and final polishing on large surfaces where uniform results matter.

Primary Applications

• Large-format quartz slab polishing

• Quartzite slab polishing (natural stone)

• Granite slab polishing

• Stone floor resurfacing and polishing

• Commercial flooring and restoration projects

• Surface scratch repair and blending on large areas

Discovered Crossover Use (Technique-Dependent)

Although the 13-inch Venom Fat Boy Sponge Pads are primarily used on floor machines, some fabricators have adapted sponge pads for use on other large polishing setups depending on machine configuration and experience.

This crossover use is technique-dependent and not the original design intent. Results vary based on pressure control, RPM, water management, and operator experience.

Material Compatibility

Quartz
Engineered stone
Quartzite
Granite
Marble
Natural stone
Stone flooring

Professional Features

• Diamond-sponge style fiber polishing

• High water retention

• Hook & loop backing

• Water-only polishing

• Consistent cut and surface clarity

• Designed for large-format fabrication and restoration work

Very Important Pro Tip – Use With Venom Bite Pads

Many countertop shops and restoration crews use Venom Bite Ceramic Resin 3-Step Pads alongside Venom Fat Boy Sponge Pads.

Venom Bite pads are often used for localized surface correction, while Fat Boy Sponge Pads handle broad surface blending and polishing, especially on large slabs and floors. Having both systems available allows professionals to choose the right tool for each stage of surface correction.

Tips From the Pros

Many professionals soak the pad in water for approximately 30 seconds before use.
This allows the sponge to fully absorb water, helps control heat, and promotes smoother polishing when running on floor machines.

Available Grits

150 • 300 • 500 • 1000 • 2000 • 3000 • 6000 • 10,000 • 15,000

Specifications

Size: 13 Inch
Pad Type: Diamond Sponge Polishing Pad
Use: Wet polishing (water only)
Attachment: Hook & Loop
Machine Compatibility: Floor machines, large surface polishers
Application: Large surface polishing and scratch repair