SikaProof A12 Membrane (2.0m x 20m)

SikaProof A-12

SikaProof A-12 is an embossed polyolefin FPO sheet membrane for pre-applied fully bonded below ground waterproofing of reinforced concrete structures. Membrane thickness 1,2 mm.

SikaProof A-12 is cold-applied without heat or open flames to prepared substrates or onto formwork before fixing reinforcement and concrete placement. The membrane has self-adhesive longitudinal strips for bonding overlap joints and is laminated with a unique sealant and a non-woven fleece backing layer which creates a bond with the cast concrete.

• Can be used as a methane and carbon dioxide resistant membrane when installed as a waterproofing membrane fully bonded to concrete according to BS:8485:2015+A1 2019.
• Will restrict the ingress of radon into buildings from naturally occurring sources
• Fully bonded to the reinforced concrete structure

Usage

Waterproofing, concrete protection and gas resistant membrane for basements and other below ground concrete structures against ground water ingress. Suitable for use on:

• Reinforced concrete base slabs
• Reinforced concrete walls with both single and double-faced formwork
• Extension and reconstruction works
• Prefabricated structures
• Shotcrete structures

Advantages

• Can be used as a methane and carbon dioxide resistant membrane when installed as a waterproofing membrane fully bonded to concrete according to BS:8485:2015+A1 2019.
• Will restrict the ingress of radon into buildings from naturally occurring sources
• Fully bonded to the reinforced concrete structure
• No lateral water underflow between the concrete structure and the membrane system
• Validated high watertightness
• High flexibility and crack-bridging
• Pre-applied, before fixing reinforcement and concrete placement
• Easy to install with fully adhered joints (no welding required)
• Cold-applied (no pre-heating or open flames)
• Good tear and impact resistant properties
• Temporarily resistant to weathering and UV-light during construction
• Highly durable and resistant to aging
• Resistant to aggressive elements in natural ground water and soil
• Can be combined with other approved Sika Waterproofing / Joint Sealing Systems