Waterproofing water tanks

Concrete water tanks are waterproofed from the inside using KOSTER NB 1 Grey or KOSTER NB 2 White. KOSTER NB 1 Grey is approved for use in drinking water environments.

The waterproofing is applied onto solid and prepared concrete substrates. The primer KOSTER Polysil TG 500 increases the mechanical resistance of concrete surfaces and immobilizes salts present in the substrate. Smaller areas are repaired with KOSTER Betomor Multi A. Larger areas can be restored and reprofiled with KOSTER Repair Mortar NC.

In the case of below grade tanks, the external side is waterproofed with a crack-bridging coating like KOSTER Deuxan 2C.

For waterproofing and concrete repair, KOSTER Polysil TG 500 is used as a primer in order to harden the concrete and prepare the substrate for the repair mortar.

Always adhere to the specifications in the respective Technical Guidelines.

 

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