NBS Source
I'm a manufacturer

Swimming Pool - Under Tile Waterproofing System

Verified by manufacturer 3 months ago

Koster Aquatecnic Ltd Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

  • EPD

    EPD

    Certificate type

Internal swimming pool waterproofing system.

Jump to:
+44 (0)1387 270252 Website

Application

A robust and Crack Bridging waterproofing system, suitable for application under tiles in swimming pools to give protection against negative and positive side pressure.

Description

Waterproofing swimming pools has unique requirements. Not only must it provide a suitable substrate for liners, elastomeric paints, or tiles, but it has to resist both positive and negative side water pressure. It should also have crack-bridging capabilities as these structures tend to settle greatly. The Koster system designed and implemented for waterproofing swimming pools has a long track record of success.


The system is applied to substrates that are sound and solid as well as free from bond inhibiting agents. As primer, Koster Polysil TG 500 is used. It hardens the substrate and reduces the mobility of salts. The installation of a fillet at the wall-floor-junction is done with Koster Repair Mortar Plus to prevent stresses in the subsequent waterproofing layers.


The negative side waterproofing is achieved with Koster NB 1 Grey. In case of active leakages in the wall or slab, this first needs to be stemmed using Koster KD System (please see separate NBS page on this system for further information).


The positive side waterproofing is carried out with the crack bridging system Koster NB 4000. This waterproofing material is resistant to foot traffic and can be covered with tiles. It creates an excellent bond to damp substrates. The installation of Koster Glass Fiber Mesh is recommended between the first and second layer of the Koster NB 4000 to enhance the movement resistance.


The tiling can then be performed with the single component and flexible adhesive Koster BD Flexible Tile Adhesive.


Pipe penetrations are waterproofed using Koster KB-Flex 200 and sealed with Koster KB-Fix 5.


System includes:

  • Fillet: Koster Repair Mortar Plus.
  • Negative side waterproofing: Koster NB 1 Grey.
  • Positive side waterproofing: Koster NB 4000.
  • Tile adhesive: Koster BD Flexible Tile Adhesive.
  • Penetrations: Koster KB-Flex 200.


For further guidance, please contact the Koster technical team at technical@kosteruk.com.

General information

Color

Other

Finish

Micro-textured

Smooth

Material

Cementitious

Fiber-glass

Polymer-modified cement

Polymeric

Shape

Other

Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

Ten year

Uniclass

Ss_32_80_03_14 Cold-applied liquid waterproofing systemsPrimary

CAWS

J30/110 Cold-applied tanking

Specification data - Cold-applied liquid waterproofing systems

Substrates

-

Pointing and filling mortar

Koster Repair Mortar Plus.

Guidance for specification option:

Slightly expanding, hydrophobic, fast setting repair mortar which is resistant to pressurized water. When mixed with Koster SB Bonding Emulsion it becomes a PCC Mortar.

Primer

Koster Polysil TG 500.

Tanking

-

Coatings

Koster NB 1 Grey.

Guidance for specification option:

Watertight mineral waterproofing with subsequently crystallizing agents. Suitable for positive side and negative side waterproofing. A waterproofing made of Koster NB 1 Grey possesses excellent pressure and abrasion resistance, as well as chemical and sulfate resistance. Approved by the building authorities and tested in accordance with the potable water guidelines. For area waterproofing in new construction and restoration, e.g. waterproofing of basements and tanks.

Koster NB 4000.

Guidance for specification option:

A polymer modified mineral coating for waterproofing building structures inside and outside. It is resistant to rain soon after its application and can be exposed to pressurized water after 24 hours of curing time. Koster NB 4000 is elastic and crack bridging and suitable for waterproofing in areas such as basements, foundation slabs, masonry, and the repair of defective waterproofing layers.

Reinforcement

Koster Glass Fiber Mesh.

Protection

-

Jointing tape

Koster Joint Tape 20.

Koster Joint Tape 30.

Pipe sleeves

Koster KB-Flex 200.

Guidance for specification option:

Sealant for pipe and cable penetrations, even in the case of pressurized water. Koster KB-Flex 200 is a one-component, permanently plastic material and can therefore be directly applied from the cartridge – even in the case of flowing water.

Adhesive

Koster BD Flexible Tile Adhesive.

Guidance for specification option:

Single component, mineral flexible adhesive for all mineral building materials in construction. In combination with the Koster BD System suitable for waterproofing wet rooms.

Manufacturer guidance

Tile adhesive.

Sustainability data

Contains Red List materials

No

Country of material origin

Germany

Country of product manufacture

Germany

Recyclability

No

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

EPD

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

BBA Certificate for Koster NB1 Grey

EPD

Koster NB1 Grey Environmental Product Declaration

Literature

Koster Negative Side Waterproofing Brochure

Koster Negative Side Waterproofing Brochure

Koster Waterproofing Systems Company Brochure

Koster Waterproofing Systems Company Brochure

Koster External Basement Waterproofing Brochure

Koster External Basement Waterproofing Brochure

Koster Waterproofing of Construction Joints

Koster Waterproofing of Construction Joints

Similar products from Koster Aquatecnic Ltd

Koster NB 4000 - Waterproofing Liquid Coating System

Koster NB 4000 - Waterproofing Liquid Coating System

Podium Deck Waterproofing System

Podium Deck Waterproofing System