Sikaplan® WT 4220-18 H

1,8 mm thick PE-based sheet waterproofing membrane for water tanks

Sikaplan® WT 4220-18 H is a flexible, 1,8 mm thick, homogeneous sheet waterproofing membrane based on flexible polyethylene (FPO-PE).

  • Certified for contact with water for human consumption
  • Easy to clean and low maintenance
  • Proven performance over decades
  • Contains no fungicides, heavy metals, halogens or plasticisers
  • High tensile strength and elongation
  • Resistant to microbial degradation
  • Hot air weldable
  • Flexible in cold temperatures
  • Suitable for contact with acidic (soft) water
  • Can be installed on damp and wet substrates