Products LITHKEM ULTRA S Lithkem Ultra S is a specially formulated powder accelerator engineered to accelerate setting times and amplify early and final strengths in Self-Levelling Underlayments (SLUs). Storage Store in a cool and dry environment – minimum shelf life of 12 months Packaging 20kg bags Download TDS sheet (PDF) Download Call our sales team | 0161 762 0044 Email our sales team | sales@cemkem.co.uk View all applications View all products