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SIKAFLEX 1A Polyurethane Elastic Sealant/Adhesive High performance, moisture-cured 1 component, elastomeric sealant designed for all types of small joints where maximum depth of sealant will not exceed 1/2". Suitable for vertical and horizontal joints. Cures to a tough, durable, flexible consistency with exceptional cut-and tear-resistance. Disposable 10.3 fl. oz., moisture-proof composite cartridges, 24 per case. For large sikaflex orders of 10 cases or more (240 tubes) please contact us by telephone.