Sikasil® SL 189

(former MSeal SL 189)

Ultra-low modulus silicone sealant for concrete and asphalt substrates

Sikasil® SL 189 is a high performance, one-part, moisture curing silicone construction sealant. The Product offers ultra-low modulus, fuel and UV resistant, elastomeric seal. The ultra-low modulus minimises the strain on the asphaltic joint face, which is necessary due to the low tensile strength of asphaltic paving materials.

  • Ready for use
  • Low stress on substrate due to the low modulus of the sealant
  • No primer required
  • Very good durability
  • Adapts to joint width and alignment irregularities
  • Wide service temperature range