Batimix Mortar W-820

Efflorescence-free surface waterproofer


BATIMIX Mortar W-820 is an efflorescence-free surface-applied cementitious-based material, which waterproofs and protects concrete. It is made from Portland cement, carefully-graded sand, and a combination of selected waterproofing additives.

BATIMIX Mortar W-820 can be used on surfaces that must withstand both active or passive water pressure. Its bonding adhesion strength is excellent, making it suitable for application on both horizontal and vertical surfaces. It is durable, resistant to frost and heat after setting.

Main Purpose

Primary applications include waterproofing of basement retaining walls, channels, bridges, construction joints, swimming pools, water retaining structures, and concrete slabs such as roofs and balconies.


BATIMIX Mortar W-820 has the following characteristics:

  • Ready-to-use, ensuring consistent properties of the fresh and hardened product
  • Applied to all structurally sound pressure and non-pressure concrete surfaces whether new or old
  • Strong adhesion to substrates
  • Very-low water absorption, yet increased water vapor transmission
  • Improved durability with a high quality finished texture




  • 25KG Paper Bag

Health & Safety

BATIMIX Mortar W-820 contains cement that is irritating to the eyes and skin. In case of contact, rinse immediately with plenty of water. Wear suitable gloves. For further information, kindly refer to the product's Material Safety Data Sheet.