Costar Pro Shield (HDPE) Membrane

Description

Costar Pro Shield (HDPE) Membrane comprises of a specially designed thick HDPE film, pressure sensitive adhesive and weather resistant protective coating. The Costar HDPE membrane bonds with green concrete cast on the membrane, forming a Highly effective sealing that prevent the lateral movement and penetration of water into the structure. Reinforcement can be directly laid on top ofthe Costar HDPE membrane.

Features and Benefits

• Ease of handling and installation thus saving time and cost of installation.
• Puncture resistant and can be applied to permanent form work.
• Reinforcement can be directly laid on top of membrane.
• Creates a barrier to water, moisture and gas
• between the structure and the physical surrounding ground.
• Resistance to freeze/thaw, wet/dry cycling conditions.
• Ready for immediate placing of reinforcement
• Does not require surface Priming.
• Can be installed in wet conditions – cannot activate prematurely
• Good chemical resistant properties thus protect structure from salt or sulphate attack.
• Long Lasting protection effect due to efficient bonding with concrete applied on membrane thus serving as long as the design life of the structure.
• A continuous adhesive bond is formed to concrete poured against the HDPE membrane thus making it unaffected by any substrate settlement beneath the slabs.
• Does not require more than 75/100mm overlap to achieved effective water-tight joints once overlaid with concrete.

Application Area

•  BelowGrade metro projects and Subways. Underground Basements.
• Retaining walls for confined area.
• Cut and cover tunnels.
• Other underground civil structures.
• Caverns.