Jacuzzi Unlimited Rub Brick - Skate Spot Prep Tool

Jacuzzi Unlimited Rub Brick — Skate Spot Prep Tool

The Jacuzzi Rub Brick is a multi-use abrasive grinding block and the go-to DIY spot-prep tool in skateboarding. Use it to smooth rough concrete surfaces, strip old wax from ledges and curbs, and optimise any obstacle for cleaner grinds and slides.

• Fluted silicon carbide construction for effective concrete grinding
• Removes rough spots, bumps, and sharp edges from obstacles
• Strips old wax residue from ledges and curbs
• Improves glide for smoother, more consistent grinds and slides
• Also suitable for pool and masonry surface maintenance
• Use with gloves, goggles, and a dust mask recommended

What is a Rub Brick?
A rub brick is essentially a handheld grinding stone made of wear-resistant materials like fluted silicon carbide. Skateboarders use it to:
Remove Imperfections: Grind down rough spots, bumps, and sharp edges on concrete obstacles.
Clean Surfaces: Strip away dirt and old, crusty wax residues from ledges and curbs.
Improve Glide: Optimise surfaces for smoother, more consistent grinds and slides.

How to Use a Rub Brick for Skate Spots
To prepare a new or "crusty" spot, follows these common steps:
Safety Gear: Use gloves and goggles; a mask is highly recommended to avoid breathing in concrete dust.
Grinding: Rub the brick back and forth with firm, even pressure along the top and side of the ledge where trucks and wheels will touch.
Dusting: Periodically sweep away debris with a broom.
Finishing (Optional): Many skaters apply clear spray-on lacquer after smoothing to seal the surface before applying fresh wax.
Waxing: Once the surface is smooth and clean, apply a generous amount of skate wax.