Opti-mix ECO-MIX Mortar Plasticiser – KA

The KA Opti-mix ECO-MIX mortar plasticiser is about as concentrated as admixtures get. Developed as the world’s first 1:25 ratio plasticiser, a single litre replaces 25 litres of your standard liquid admix. That’s not a typo. For anyone who has ever lugged a box of plasticiser up three flights of scaffolding, you’ll immediately appreciate what that means in practice.

It works in the same way as traditional admixture, improving the workability of cement-based mortars and making them easier to spread, lay and finish. The plasticising action is powerful and fast-acting, giving mortar that smooth, buttery consistency bricklayers want without the need to overwater the mix. Overwatered mixes are weaker mixes, so getting the balance right actually matters for the finished job.

Where the ECO-MIX KA Mortar Plasticiser Makes Sense

The real advantage here is in the dosing. Each 1 litre bottle is designed around a simple 25ml dosing system, which means you’re adding a measured amount directly to the mix rather than guessing from a large container. The bottle design itself, referred to as the Optix bottle, is shaped for easier handling and transport. It won’t roll around in the back of the van, and the no-spill, no-waste closure means you’re not soaking the boot mat every other morning.

For a product positioned as an eco-conscious option, the reduced packaging and transport volume is a genuine benefit, not just a marketing angle. Moving 25 times less liquid from factory to site has an obvious impact on fuel, storage and handling. Whether that matters to you or not, the practical convenience is real regardless.

The smell and performance closely match traditional admix, so there’s no acclimatisation period or changed mixing behaviour to account for. It performs like what you already know, just in a much smaller bottle. Widely used across bricklaying, blockwork and general rendering applications where a plasticised mortar is specified or preferred.