SEK Surebond PolySweep X-Treme Wide Joint Polymeric Sand 50 lb, Joints to 4 in

Built For The Joints Standard Sand Cannot Hold

Wide joints fail differently than narrow ones. There is more material to bind, more water moving through, and more room for washout. X-Treme is graded and formulated for that volume, so a 3 in flagstone joint sets up as reliably as a 1/4 in paver joint does with regular PolySweep.

• Rated to 4 in. More than five times the joint width of standard PolySweep.
• Same Clear Set technology. No hazing formula, so natural stone does not end up with a white film.
• Reduced dust. Less airborne dust during sweeping and compaction.
• Natural stone and porcelain approved. Concrete, clay and wet cast pavers as well.

Coverage Per 50 lb Bag

Wide joints eat sand. These are SEK’s published figures for natural stone, which is what most X-Treme goes into.

Where X-Treme Wide Joint Works

• Flagstone and irregular natural stone
• Wide cut bluestone and travertine
• Concrete, clay and wet cast pavers with wide joints
• Porcelain tile installations
• Driveways, walkways, patios and pool decks

Where It Should Not Be Used, Straight From SEK

• Not for vertical applications. Jointing sand only, never a wall product.
• Not a mortar substitute. It carries no structural load.
• Not on a wet or damp surface. Everything has to be dry before you sweep.
• Do not mix it with other products. No additives, no blending brands.

Install Window

X-Treme Wide Joint Specifications

Joints Under 3/4 In?

You do not need X-Treme. Standard SEK Surebond PolySweep covers joints to 3/4 in, costs less per bag and uses the same Clear Set no haze technology.