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Three millimetres that hold the wall together.
AIWON Bond is a ready-mixed jointing mortar of cement, graded dry sand and imported modified polymers, made for AIWON blocks. It goes on 2–3 mm thick, needs no water curing, and leaves a wall that is stronger at the joint and with no gaps for heat to slip through.
Both drawn at the same scale. Nearly a fifth of a brick wall’s face is mortar; in an AIWON wall it is one-fiftieth.
Why thin matters
A thick sand-cement joint is the weakest, wettest and warmest part of a wall. It shrinks and cracks, it soaks up water, and it carries heat straight through the insulation the block gives you.
- Mortar
- About 80% less mortar than a 10–15 mm joint.
- Heat
- No thick joints to act as heat bridges.
- Water
- Thin, dense joints keep moisture out.
- Time
- No water curing — build on, and plaster after 24 hours.
Technical data
AIWON Bond mixed with water at 21 °C (70 °F), from the technical data sheet.
Compressive strength
Split tensile strength
Pot life once mixed
Open time on the wall
Water demand — 10–12 litres per 40 kg bag
Time before plastering
Wall per 40 kg bag, with 600 × 200 × 150 mm blocks
Shelf life in a cool, dry store
Use it for
Laying and jointing AAC, CLC, light-weight and cellular concrete blocks, inside and outside, and jointing concrete window and door frames. Grey powder in 40 kg bags.
What it gives the wall
High bond strength between blocks, no shrinkage cracks, better compressive and tensile strength of the wall, flexibility under shock and impact, and good thermal insulation. Brickcem’s Superbond technology keeps every bag the same.
On site, in order
From the site execution protocol we give every mason. Tools: water, an electric stirrer, a trowel and a notched trowel — and a rubber mallet.
Mix
- Water firstPour 10–12 litres of clean water into the tub for one 40 kg bag.
- Then the powderAdd AIWON Bond to the water, never water to the powder — that is what keeps it free of lumps.
- StirMix with a slow electric stirrer until smooth.
- Rest, then remixLeave it 2–3 minutes for the polymers to work, then stir briefly. Use within 1.5–2 hours.
Lay
- Clean and dampenBrush the block face clean and lightly damp with a wet brush. Moist, not dripping — do not soak.
- Notched trowel onlySpread a uniform 2–3 mm bed with the notched trowel so the whole face is covered.
- Place and tapSet the next block and adjust it with a rubber mallet within 10 minutes.
- Check the lineKeep the courses level and the wall plumb as you go.
Three things never to do
- No water curing
- AIWON Bond cures itself. Water weakens it.
- No thick joints
- Joints over 5 mm cause heat bridges and cracks.
- No bone-dry blocks
- A dry block sucks the water out of the mortar and the bond fails.
If something goes wrong
- Mortar drying too fast
- The blocks are too dry. Dampen them more.
- Blocks sliding
- The mix is too wet. Add a little powder.
- Joints cracking
- Uneven thickness. Switch to the notched trowel.
The technical details and recommendations are based on our best knowledge and experience. Users should check that the product suits their application; Brickcem cannot accept liability for results affected by conditions beyond its control.
How many bags?
The wall builder works out AIWON Bond along with the blocks, for every thickness.