Sikaflex®-403 Tank & Silo

Elastic polyurethane sealant for tanks and silos

Sikaflex®-403 Tank & Silo is a 1-part, moisture-curing, elastic polyurethane sealant which is resistant to organic acids as found in liquid manure and silage liquids. The product is used for sealing segmented and bolted tanks, concrete containers, floor joints and sewage systems.

  • Resistant to organic acids such as silage liquids.
  • Resistant to domestic and municipal sewage, liquid manure and silage liquid.
  • Resistant to wastewater such as domestic and municipal sewage and liquid manure.
  • Resistant to temperatures of +65 °C as found in thermophilic digestors.
  • Very low swelling in organic acids enabling use for floor joints trafficked by front loaders.
  • Good mechanical resistance.
  • Very good resistance to specific chemicals.
  • Very good tear propagation resistance.
  • Movement capability of ± 20 % (ISO 9047).