Product Data Sheet Sikaflex®-1A February 2023, Version 01.01 020511010000000008 PRODUCT DATA SHEET Sikaflex®-1A Elastomeric joint sealant / adhesive DESCRIPTION Sikaflex®-1A is a premium-grade, high-performance, moisture-cured, 1-component, polyurethane-based, non-sag elastomeric sealant. Meets ASTM C-920,Type S, Grade NS, Class 35, use …