Make your concrete and mortar mixes stronger, more durable, and easier to work with using Sika’s site-mix additives. Whether you're laying a slab, building a retaining wall, or doing small masonry repairs, Sika’s trusted range of admixtures helps you get professional-quality results at home. Our plasticisers, waterproofing agents, and bonding additives are designed to improve workability, reduce cracking, and extend the life of your concrete or mortar—perfect for any Kiwi DIY project, big or small.
