SEK Surebond PolySweep X-Treme Wide Joint Polymeric Sand 50 lb, Joints to 4 in
SEK Surebond PolySweep X-Treme Wide Joint Polymeric Sand 50 lb, Joints to 4 in - Black is backordered and will ship as soon as it is back in stock.
Ships same day on weekday orders placed before the 14:00 ET cut-off.
Typically 1 to 5 business days by UPS, FedEx Ground or USPS. Enter your ZIP for your dates.
Request a pallet quoteHow much do I need?Call (856) 418-4895
- Brand
- SEK SUREBOND
- Type
- Polymeric Sand
- Colors
- 3 options
About this item
- 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.
Shipping, pick-up and returns
Shipping, pick-up and returns
Orders ship from Williamstown, New Jersey by UPS, FedEx Ground or USPS; weekday orders placed before 2 PM Eastern go out the same day. Warehouse pick-ups (call first so we can pull your order) and drop-off returns Monday to Friday 8 to 5, Saturday 8 to noon.
SEK Surebond PolySweep X-Treme Wide Joint Polymeric Sand 50 lb, Joints to 4 in - Black is backordered and will ship as soon as it is back in stock.
How many bags do I need?
Coverage per bag comes from the manufacturer's data sheet for this exact sand.
Minimum temperatureAbove 35 F for 48 hours after install
Joint WidthUp to 4 in
Bag Size50 lb
Ships same dayWeekday orders before 2 PM Eastern
Why SEK Surebond PolySweep X-Treme Wide Joint Polymeric?
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.
Full description and specs
Technology
Clear Set, no haze formula

Joint width
Up to 4 in

Colors
Black, Tan and Platinum. Pearl is not offered in X-Treme

Natural stone, joints up to 2 in
15 to 25 sq ft
Choose your color
3 colors in this listing.
Not sure which color?
Order color samples and check them against your own pavers in daylight before you buy the bags.
Order color samplesColor and appearance may vary with lighting, paver color and installation conditions.
Install in 4 steps
The short version. Always follow the SEK SUREBOND data sheet.
-

Spread
Spread the sand across a completely dry paver surface.
-

Sweep and vibrate
Sweep it into the joints and compact with a plate compactor. Top up low joints.
-

Sweep off
Remove every grain from the paver faces before water touches it, with a soft broom or a leaf blower on low.
-

Activate with water
Shower setting until the joints are saturated but not flooded. Follow the bag for section size and timing.
Apply at Above 35 F for 48 hours after install. Test a small area first.
Description
Description
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.
| Natural stone, joints up to 2 in | 15 to 25 sq ft |
| Natural stone, 2 in to 4 in | 25 to 35 sq ft |
| Note | Joint depth and stone texture move these numbers significantly |
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
| Minimum temperature | Above 35 F for 48 hours after install |
| Rain free window | At least 12 hours |
| Cure time | Up to 24 hours or longer when cool and damp |
| Surface condition | Completely dry before sweeping |
| Shelf life | 24 months |
X-Treme Wide Joint Specifications
| Product Type | Wide joint polymeric sand |
| Manufacturer | SEK Surebond |
| Joint Width | Up to 4 in |
| Bag Size | 50 lb |
| Pallet | 56 bags |
| Technology | Clear Set, no haze formula |
| Colors | Black, Tan and Platinum. Pearl is not offered in X-Treme |
| Approved Surfaces | Concrete, clay and wet cast pavers, natural stone, porcelain tile |
| Standards | ASTM C-144 sand gradation |
| Shelf Life | 24 months |
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.
Data sheets
Data sheets
The manufacturer's technical data sheet (coverage, joint width, cure and rain-safe times) and safety data sheet are collected in the TDS and SDS library. Every figure on this page comes from those sheets.
Payment & Security
Payment methods
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Questions about this product
Ask a question ›How many bags do I need?
Which colors does it come in?
When will it ship?
Can I buy by the pallet?
Where are the technical and safety data sheets?
Is contractor or bulk pricing available?
See it in action
Short clips of each install step. Click to play.














