Newton 315 Polymer Waterbar

A hydrophilic acrylate polymer waterbar, which swells when activated by moisture. Offering high elasticity and high tensile strength, Newton 315 Polymer-Waterbar can be used to seal the structure against water leaks to both cast-in-place concrete and precast construction joints.

The swelling is achieved through hydrophilic acrylate polymers, which are inseparably embedded within the butylene carrier material. This results in high elasticity and exceptional tensile strength, even when fully expanded within the joint.

Due to its high resistance to acids, alkalis and organic solutions, Newton 315 Polymer-Waterbar can be used to seal joints where aggressive water is expected such as within sewage treatment plants, biogas plants and liquid waste holding tanks.

Consult manufacturer for installation recommendations.

Features and benefits:

• Accepted by the NHBC as a suitable waterbar Type B Waterproofing to Grades 1, 2 and 3 to BS 8102: 2009 (5 mm and 10 mm profile variants only).
• Resistant to permanent water pressure of 2 bar.
• Delayed swelling – will not swell during the installation process or during the concrete cure.
• Swells up to nine times its original size.
• Very resistant to the high alkalinity of concrete.
• Maintains very high elasticity and tensile strength, even when swollen.
• Age-resistant, no embrittlement.
• Resistant to a large range of chemicals (see manufacturer's literature for further details).
• Retains integrity even through many wet/ dry cycles.
• Has a service life that can be equal to the design life of the structure.

Suitable joints:

• Construction joints, day joints and shrinkage joints.
• Concrete walls above a concrete kicker.
• Within concrete rafts or slabs.
• Concrete slab to concrete or steel wall.
• Concrete slab to brick/ block wall (20 x 10 mm only).
• Joints to precast concrete elements.
• Steel beams protruding through the concrete.
• Ceramic or plastic waste pipe protrusions (20 x 2 mm only).
• Preformed sump chambers within new rafts or slabs (20 x 2 mm only).

Installation:

Newton 315 Polymer-Waterbar is glued to one side of the construction joint prior to the placement of the next concrete element that forms the joint.

Recommended adhesive:

Newton 309-M – adhesive with very high bond characteristics.

To concrete and mortar, the application can be enhanced by the use of masonry nails at approximately 250 mm centres.