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Mapei Idrostop B25 is a hydro-expansive, bentonite jointing tape for sealing the second pour of concrete in civil and industrial building work.
- After expanding upon contact with water, Idrostop B25 adapts perfectly to the volume defined by the surrounding boundaries. Thanks to this property, it offers a perfect seal between the second pour of concrete
- Able to perfectly seal the formation of localised honeycomb voids which are present in the concrete
Idrostop B25 is available in 5 m rolls with a cross section of 20x25 mm (box of 6)
For professional use only.
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Features & Benefits
- Uses:
- Waterproofing between the second pour of concrete between bases and concrete header walls
- Sealing between different types of material, for example PVC and steel pipes, which pass through concrete swimming pools, depuration tanks, storage basins and general hydraulic works
- Sealing elements which pass through Mapeproof bentonite membrane, such as reinforcing rods, pipe-work, foundation piles, etc.
- Water-stop material, composed of a mix of natural sodium bentonite and polymers which give the product exceptional properties of compactness, flexibility and stability, and is produced according to a formula developed in MAPEI’s own Research & Development laboratories
- The material’s expanding process takes place in a controlled, gradual and uniform way without the risk of altering the balance of the mix
- After expanding upon contact with water, Idrostop B25 adapts perfectly to the volume defined by the surrounding boundaries
- Offers a perfect seal between the second pour of concrete
- Idrostop B25 is able to perfectly seal the formation of localised honeycomb voids which are present in the concrete
Application
- The surface of the concrete must be clean and sound at the time of applying Idrostop B25
- Remove cement laitance and all waste material deposited on the surface during pouring operations
- Idrostop B25 may also be applied on surfaces which are slightly damp
- Idrostop B25 tape may be applied on concrete, metal and PVC after cleaning
- Lay the Idrostop B25 and fix in position with nails every 25 cm
- The ends of the tape must overlap by approximately 6 cm
- The thickness of the second pour with Idrostop B25 protection must be at least 8 cm
- Application temperature from –5°C to +50°C
Data sheet
- Manufacturer
- Mapei
- For Use By
- Professional Use
- Interior / Exterior Use
- Interior & Exterior
- For Use On
- Concrete
- Single, Two or Three Pack
- Single
- Pack Size
- 6 x 5m
- Colour(s)
- Dark green
- Suitable For Use On
- Concrete
- Manufacturer
- Mapei
- Usages
- Hydro-Expansive
- Product Usage Type
- Sealant
- Product Range
- Idrostop
- Colour Family
- Green
Questions
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IMPORTANT SHIPPING & DELIVERY INFORMATION
Mapei Idrostop B25 is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT