Sika SikaProof® A+ 12 Pressure-water-tight and crack-bridging fresh concrete composite system... more

Sika SikaProof® A+ 12

Pressure-water-tight and crack-bridging fresh concrete composite system with innovative hybrid bond and backflow protection
SikaProof® A+ 12 is a pre-installed fresh concrete composite system (FBVS) for concrete structures
The basis is a 1.2 mm thick plastic sealing membrane made of highly flexible polyolefins (FPO)
The membrane is equipped with a special hybrid composite layer based on cement-modified polymers and has a total thickness of 1.75 mm
The system creates a permanent surface bond with the hardening fresh concrete and reliably prevents backflow in the event of unwanted damage
Innovative hybrid bond through adhesion, claw bonding and needling with the hardening fresh concrete
No backflow between the plastic membrane and Concrete component
Pre-installed system - sheet is laid on a suitable substrate before concreting
Easy and flexible to install - seams can be joined by gluing or thermal joining
High density - approved for up to 20 m water column
High strength and elongation
Highly flexible and crack-bridging
High cold flexibility
High resistance to mechanical stress
Resistant to aging
Resistant to all natural aggressive substances found in groundwater and soil
Resistant to roots and microorganisms
UV-stable for the period of installation (3 months)
Can be installed on damp substrates