SikaProof®-A+ 12 - Sheet membrane

SikaProof® A+ 12 is a flexible polyolefin (FPO) based sheet membrane for below ground waterproofing of reinforced concrete structures. A special hybrid bonding layer on the membrane forms a full and permanent dual bond with the concrete structure. Joints are sealed with cold-applied tapes or by thermal jointing using appropriate heating equipment. The total thickness is 1.75 mm with a membrane thickness of 1.20 mm.

Features and benefits:

• Dual bond: full and permanent mechanical and chemical bond with the concrete structure.
• Can be used as a pre-applied system.
• Joints can be sealed using thermal jointing.
• No lateral water migration between concrete and membrane.
• Fast and easy installation.
• High flexibility and crack-bridging capabilities.
• High watertightness tested according to various standards.
• Good resistance to aggressive conditions in natural ground water and soil.
• Temporarily resistant to weathering and UV exposure.
• Can be combined with other approved Sika® waterproofing and joint sealing systems.
• Environmental Product Declaration (EPD) in accordance with EN 15804. EPD independently verified by BRE Global.

Approvals/ standards:

• CE marking and declaration of performance based on EN 13967:2012 Flexible sheets for waterproofing — Plastic and rubber damp proof sheets including plastic and rubber basement tanking sheet — Definitions and characteristics.
• Watertightness functional test PG FBB Part 1, WISSBAU, Test report No. 2019-231-1.
• Watertightness functional test PG FBB Part 1, WISSBAU, Test report No. 2018-275-1.
• Watertightness functional test PG FBB Part 1, WISSBAU, Test report No. 2018-276-1.