Set-retarding plasticizer for concrete. Mapetard SP is a liquid set-retarding plasticizer admixture for concrete with low lump loss. Mapetard SP is especially suited for applications which require high retention of workability and/or a retarded rate of cement hydration at early ages. Coverage Dose by weight: 0.2-0.5 kg per 100 kg of cement. Dose by volume: 0.16-0.4 l per 100 kg of cement. Packaging 25 kg drums, 200 l, 1000 l tanks. Storage 12 months, stored in unopened containers, protect from frost.