SikaProof A+ 08 | 2m x 25m

SikaProof A+ 08 is a 0.8mm thick polyolefin (FPO) based sheet membrane designed for below-ground waterproofing of reinforced concrete structures. A special hybrid bonding layer on the membrane forms a full and permanent dual bond — both mechanical and chemical — with the concrete structure, preventing lateral water migration beneath the membrane even in the event of local damage.

The membrane can be pre-applied (laid before concrete is poured) or post-applied to existing concrete, offering flexibility to suit project programme. Joints are sealed using cold-applied self-adhesive tapes or by thermal jointing with appropriate heating equipment. The total system thickness is 1.35mm.

SikaProof A+ 08 can be used as a ground gas resistant barrier when installed in accordance with BS 8485:2015+A1:2019, and will also restrict the ingress of radon from naturally occurring sources. It is suitable for use on basement slabs, walls, raft foundations, and other below-ground concrete structures.

Benefits

• Dual bond, giving a full and permanent mechanical and chemical bond with the concrete structure
• Can be used in a pre & post applied system
• No lateral water migration between concrete and membrane
• Highly flexible and crack-bridging capabilities
• High water tightness
• Can be used as a ground resistant membrane when installed as a waterproofing
• Will restrict the ingress of radon into buildings from naturally occurring sources

Good to know

• Fast & easy installation reducing labour costs and time
• Good resistance to aggressive conditions in natural ground water and soil
• Can be combined with other Sika waterproofing and joint sealing systems
• Apply to a smooth, clean substrate free from sharp protrusions
• Laps are sealed with self-adhesive SikaProof Tape A+ N or by thermal jointing.
• Minimum application temperature +5°C

This is an FPO sheet membrane for pre and post applied fully bonded below ground waterproofing. The polyolefin or FPO is designed for below ground reinforced concrete structures. A special hybrid bonding layer on the membrane forms a full and permanent dual bond with the concrete structure.

Offers damp proofing, waterproofing and concrete protection for basements and other below ground concrete structures.

Benefits

• Dual bond, giving a full and permanent mechanical and chemical bond with the concrete structure
• Can be used in a pre & post applied system
• No lateral water migration between concrete and membrane
• Highly flexible and crack-bridging capabilities
• High water tightness
• Can be used as a ground resistant membrane when installed as a waterproofing
• Will restrict the ingress of radon into buildings from naturally occurring sources

Good to know

• Fast & easy installation reducing labour costs and time
• Good resistance to aggressive conditions in natural ground water and soil
• Can be combined with other Sika waterproofing and joint sealing systems
• Pre-applied system SikaProof® A+ 08, SikaProof® Tape A+ SikaProof® Sandwich Tape
• Post applied system SikaProof® Primer-02 SikaProof® Adhesive-02 SikaProof® A+ 08 SikaProof® ExTape-100
• Find out more about the science behind SikaProof A+