What you’ll need
Step by step
Measure the dosage
Dose SUMO LW Plus at 200 ml per 50 kg bag of cement in the mix (adjust to the specification for your job). Measure it — do not eyeball.
Add it to the mix water
Add the measured LW Plus to the gauging water, then batch the concrete/mortar as normal so it disperses evenly through the mix.
Mix thoroughly
Mix to a uniform, workable consistency. Because LW Plus reduces water demand, you may need less water for the same workability — do not over-water.
Place, compact and cure
Place and compact the concrete/mortar well to eliminate voids, then cure properly — good compaction and curing are essential for the waterproofing to work.
What to avoid
Waterproofing depends on the right dose per cement. Measure at 200 ml / 50 kg cement (or per spec).
Excess water defeats the pore-blocking effect. LW Plus reduces water demand — use less.
Voids and dry-out let water through. Compact and cure well.