Made by Cement Australia
Sand and paving · Paver joints
Gap Sand 20kg
Polymer paver sand for joints up to 3mm. It binds as it dries and helps keep weeds and insects out.
Comes on pallets of 48 × 20kg bags.
1 bag (less than a pallet).
Lead time: Approx. 1 to 2 working days
Code: 200842110
Available to order from Allmat. Click and collect or delivered across Adelaide.
About Gap Sand 20kg
A polymer paver sand: a blend of graded fine sands and additives that locks brick and block pavers in place. Once dry it forms a firm but flexible joint that helps keep weeds and insects out and lets the pavers move slightly without cracking.
It is for joints up to 3mm. For wider gaps, use Sand & Cement.
- Max gap
- 3mm
- Max particle
- 2mm
- Brick pavers
- About 3.5m² per bag
- 400mm pavers
- About 12m² per bag
- Ready to use
- After 3 days
- Bag
- 20kg
Best for
- Brick and block paving joints up to 3mm
- Driveways and sloping sites
- Topping up existing paving
Not for
- Joints wider than 3mm (use Sand & Cement)
- Grouting: it sets firm, not hard
How to use
- Lay the pavers to the paver maker's instructions, then sweep Gap Sand into the joints with a stiff broom until they are full.
- Run a vibrating compactor or rubber mallet over the whole area so the sand settles and the joints firm up.
- Sweep the surface again, top up any joints and remove all loose sand from the top.
- Wet the whole area with a fine mist. Do not flood it or hose straight into the joints.
- Give it 3 days to bond the pavers. Once the joints are dry and firm, the paving is ready for traffic.
- About 6 months after laying, top up the joints, as the pavers may have settled.
Storage & safety
Keeps about 6 months from manufacture, sealed, dry and off the ground.
- Once a bag is open, use it that day.
- The sand contains crystalline silica: wear dust-proof goggles and gloves, and avoid breathing the dust.
Documents
The manufacturer's own sheets. Open one to read it on the page, share it or download the PDF.
- Gap Sand safety data sheet (SDS)9 pages
- Gap Sand data sheet2 pages
Gap Sand questions
Yes. Gap Sand has an added polymer that binds the sand and helps keep weeds and insects out. Dried Sand, the other paver joint sand, has no additives.
One 20kg bag covers about 3.5m² of brick pavers, or 12m² of 400 × 400 × 50mm pavers, at 3mm joints.
Not within 1 metre of the pool edge, where splashing keeps it wet. Use Sand & Cement there.
It is not a mortar and does not set hard. When wet it goes soft like sticky sand, and firms up again once it dries. Avoid pointing a hose straight into the joints.
Sources and guidance
The product information on this page comes from Cement Australia's published product data sheets, safety data sheets and website (see Documents above). It is general guidance only. Other manufacturers may give different advice for their own products, so always follow the instructions on the bag and the product's data sheet. Structural work, such as footings for buildings, must follow your engineer's design and the relevant Australian Standards.
You may also need
Often ordered with this product. Use + Add to pick the option and quantity and put it on the same quote.
Dried Sand 20kg
Washed, factory dried sand for paver joints, mortar, render and concrete mixes.
Sand & Cement 20kg
Pre-blended sand and cement mortar for shower bases, toilet pans, paver joints and repairs.