Flat lay of eco-friendly cleaning blocks, brush and linen cloth on a concrete surface

The Recycled-Glass Block Lineup: Faster. Smarter. Cleaner.

Foamed-glass blocks look and feel like pumice stone but are made from recycled glass. They out-perform conventional tools on their home turf, contain no chemicals, and are safe for kids and pets. This guide maps the whole family - three categories, each with its own deep-dive page.

Outdoor Living Blocks

Grill Cleaning Blocks

The flagship application. A grill block makes quick work of cleaning barbecue grates, conforming to the bars to scour every side and angle. It removes burnt-on food and grease without the loose metal bristles that make wire brushes a genuine safety concern, and it can be used while the grill is still warm - before residue hardens. See the usage tips for technique.

Pool Tile & Grout Blocks

A wetted block scrubs away algae, rust, grit and waterline mineral stains from gunite, plaster, tile grout and concrete - without disturbing the pool's chemical balance the way acid washes or chemical cleaners can. It cleans dramatically faster than conventional scrubbing and erodes grout less than natural pumice.

Stripping & Sanding Blocks

Hand Sanding Blocks

The non-toxic answer to tough surface prep. Variants cover rough wood, painted surfaces, rusted metal and drywall. They won't tear, clog, or catch on nails and corners the way sandpaper does, and one block can outlast a thick stack of quarter-sheets.

Power-Sander Blocks

Foamed glass mounted for palm sanders, detail (mouse) sanders and drill adapters. They turn an ordinary sander into a paint-stripping machine - no chemical strippers, no noxious fumes, less airborne dust - in grits from extra-coarse stripping to fine finishing.

Household Cleaning Blocks

Kitchen, Bath & Heavy-Duty Blocks

Small-format blocks for indoor chores: baked-on food on cookware and stovetops, mildew and hard-water stains in tubs and toilets, rust and paint build-up on patio fixtures and garden tools. They scrub five times faster than the leading scouring pads - and one block lasts as long as twenty of them.

Choosing the Right Block

Two rules of thumb. First, match the cell structure to the job: coarse foam for stripping and rough stock, medium for general scrubbing, fine for polished or enameled surfaces. Second, when in doubt, use water: a wet block cleans faster, sheds debris and is gentler on delicate surfaces. Whatever the task, you are working with plain glass and air - no residues to rinse away, nothing to keep away from food or pets. (For context on chemical-free cleaning standards generally, the EPA Safer Choice program is a useful reference.)

A note on availability: this is an informational archive, not a store. Foamed-glass blocks are still manufactured today and stocked by major hardware, pool-supply and grocery retailers - see where to find them.