CP 50Joint Sealing TapeFor sealing junctions between buildings in combination with bituminous thick coatingsand mineral slurries

CHARACTERISTICS� elastic� impermeable to water� tearproof� rapid drying of the embedded area� for heavy-duty applications

Test certificate no. 220 002 839 MPA,NRW

SCOPE OF USECP 50 is used for providing a durably watertightbridge for movement joints and separation joints bet-ween buildings where there is a continuous base slabbelow the ground surface. It can be used for water-proofing in compliance with DIN 18 195 againstground moisture, non-pressing water, temporarily accu-mulating seepage water and pressing water. CP 50 isalso suitable as part of a heavy-duty waterproofingsystem in conjunction with tiles and slabs, e.g. in com-mercial kitchens, swimming baths and car washes, forbridging joints and waterproofing wall/floor junctions.The tape can be embedded with bituminous, flexible,mineral and reaction resin waterproofing products. It isresistant to salt solutions as well as diluted acids andalkalis.

SUBSTRATE PREPARATIONPlease refer to the Technical Data Sheet of the res-pective waterproofing product used (e.g. CP 45) forinstructions on how to prepare the substrate.

APPLICATIONWaterproofing below ground surface:CP 50 is supplied with a length of 6 m and equippedwith an embedding zone at each end. When dividing

the tape in the middle, two partial strips of 3 m lengthresult. The terminal embedding zones are fixed on theconcrete base slab by at least 10 cm, then the stripsare run up along the joint and cut to the appropriatelength above the upper ground level. Embed the CP 50 tape with CP 43, CP 45, CR 72 andCE 49 up to the marking line. Make sure that the ex-pansion zone in the middle of the tape remains free.When expecting joint movements of more than 10 mm,the bridging tape must be laid with sufficient slack. Composite waterproofing:Cut off the embedding zone at each end and fix the CP 50 tape across the expansion joint or the wall/floorjunction. Depending on the application, either CL 50 orCE 49 can be used for fixing. Embed the CP 50 tapewith the waterproofing material up to the marking line.Make sure that the expansion zone in the middleremains free. When expecting joint movements above5 mm, the bridging tape must be laid with enoughslack.

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Before fixing several strips of tape to the substrate, theirfront ends must be joined by hot-air welding. Overlapthe strips to be joined by 5 to 7 cm, blow hot air(approx. 350-380°C; hot-air blower e.g. by Leister,type Triac S with a wide-slot nozzle type 30 A1 or 30 B1) into the interspace and immediately press down vigorously with a rubber roller. The surfaces tobe welded must be free of substances that may impairadhesion; in particular they must be clean and dry. Use CP only on ice-free substrates, not in blazingsunshine and only below 80 % relative air humidity.

PLEASE NOTEBefore back-filling the excavation, protect the water-proofing coat against damage, e.g. by installingsuitable drainage boards or similar materials. Thesemust be secured so that they cannot be pulled down,e.g. by the settling soil. Avoid point-load pressure orthin edge loads. The excavation can only be back-filledafter the waterproofing coat has sufficiently hardened.Do not use binder soil for the back-fill. Please refer in particular to DIN 18 195 and to the"Guideline for the planning and execution of water-proofing structures in contact with earth using plastic-modified bituminous thick coatings". Also observe the"Guideline on waterproofing slurries" as well as therelevant information sheets issued by the ZDB (CentralAssociation of the German Building trade).Please refer to the CP 50 Safety Data Sheet for safetyadvice and disposal instructions.

TECHNICAL DATAMaterial base: thermoplastic elastomer, com-

bined with a polyester fleece

Maximum tensile strength: transversal 76.4 N/15 mm(DIN EN ISO 527) longitudinal 223.7 N/15 mm

Elongation at break: transversal 121 %(DIN EN ISO 527) longitudinal 32 %

Water resistance: watertight(DIN 16 726, par. 5.11,7 days / 1.5 bar)

Dimensions: 6 m long,240 mm wide

Temperature resistance: –30 °C to +80 °C

Foldability at low no crackstemperatures (–30 °C):(DIN EN 1876-1)

Storage: in a dry place

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Should you need support or advice, please consultour advisory service for architects and craftsmen onthe hotline numbers Phone: +49 211 797 0Fax: +49 211 798 2148

Build on professional solutions.

Henkel AG & Co. KGaA – BautechnikHenkelstraße 67 · D-40589 DüsseldorfTelefon +49 211 797 0 • Telefax +49 211 798 2148Internet: www.ceresit.com · E-Mail: ceresit.bautechnik@henkel.com

The information contained herein, particularly recommendations for the handling and use of our products, is based on our professional experience.As materials and conditions may vary with each intended application, and thus are beyond our sphere of influence, we strongly recommend thatin each case sufficient tests are conducted to check the suitability of our products for their intended use. Legal liability cannot be accepted on thebasis of the contents of this data sheet or any verbal advice given, unless there is a case of wilful misconduct or gross negligence on our part.This technical data sheet supersedes all previous editions relevant to this product.

Apart from the information given here it is also important to observe the relevant guidelines and regulations of various organisations and tradeassociations as well as the respective standards of the German Standards Institute (DIN). The aforementioned characteristics are based on practicalexperience and applied testing. Warranted properties and possible uses which go beyond those warranted in this information sheet require ourwritten confirmation. All data given was obtained at an ambient and material temperature of +23 °C and 50 % relative air humidity unless specifiedotherwise. Please note that under other climatic conditions hardening can be accelerated or delayed.