Mapei · SealantNo. 45 / 47
Mapeflex PU 45 FT
Paintable, rapid, high modulus polyurethane sealant and adhesive.
Paintable, rapid, high modulus polyurethane sealant and adhesive
- Mapeflex PU 45 FT has been specially developed for sealing expansion and distribution joints in horizontal and vertical surfaces, including those which are subject to occasional chemical attack by hydrocarbons
- It is also recommended for flexible bonds between similar and different materials most commonly used in the building industry for both internal and external applications and as a replacement or to compliment mechanical fasteners
- Industrial floors subject to vehicular traffic, including heavy vehicles
- Concrete floors for internal and external car-parks, supermarkets, shopping centres and warehouses
- Concrete walls and general internal and external vertical structures where the use of a thixotropic product is required
- Sealing cracks
- Sealing pipe-work systems for air-conditioning and electric cables
- Sealing sheet-steel sections, such as flashing and guttering
- Consumption
- 6 m per 600 ml in a 10 x 10 mm joint
- Pack we stock
- 600 ml
- Colour
- Grey
Coverage calculator
How much you need.
The arithmetic uses Mapei's published consumption for Mapeflex PU 45 FT and the pack sizes we stock. Set your own wastage allowance.
You need
x 600 ml cartridge
- Data sheet quantity
- 3,000 ml
- With 10% wastage
- 3,300 ml
The figures behind it.
- 5x5 12 24
- 10 x 10 3 6
- 15 x 10 2 4
- 20 x 10 1.5 3
- 25 x 12.5 0.9 1.9
- 30 x 15 0.6 1.3
- Up to 10 mm Same as width
- From 11 to 20 mm 10 mm in all cases
Joint volume: width x depth x length. Mapei's own table gives 6 linear metres per 600 ml for a 10 x 10 mm joint.
Consumption on site depends on the substrate, the tool and the applicator, which is why wastage is yours to set. The result is a quantity to plan and quote with, not a guarantee of coverage. Confirm the system against the current Mapei technical data sheet before ordering.
Application
Where it is used.
In Mapei's own words, from the technical data sheet.
- 01Mapeflex PU 45 FT has been specially developed for sealing expansion and distribution joints in horizontal and vertical surfaces, including those which are subject to occasional chemical attack by hydrocarbons
- 02It is also recommended for flexible bonds between similar and different materials most commonly used in the building industry for both internal and external applications and as a replacement or to compliment mechanical fasteners
- 03Industrial floors subject to vehicular traffic, including heavy vehicles
- 04Concrete floors for internal and external car-parks, supermarkets, shopping centres and warehouses
- 05Concrete walls and general internal and external vertical structures where the use of a thixotropic product is required
- 06Sealing cracks
- 07Sealing pipe-work systems for air-conditioning and electric cables
- 08Sealing sheet-steel sections, such as flashing and guttering
Where it is not the right product.
- Do not use on dusty or flaky surfaces
- Do not use on damp surfaces
- Do not use to seal joints in stone and marble: use Mapesil LM or Mapesil Stone Matt
- Do not use on bituminous surfaces where the bleeding of oil may be present
- Do not apply Mapeflex PU 45 FT if the temperature is below +5°C
Specification
Technical data.
- EN 15651-1 · F-EXT-INT-CC, class 20 HM
- EN 15651-4 · PW-EXT-INT-CC, class 20 HM
- ISO 11600 · class F20 HM
- Colour
- white, 111 grey, 113 grey, beige, brown, black
- Density
- 1.39 g/cm³
- Recommended application temperature range
- from +5°C to +35°C
- Dust dry
- 35 mins.
- Final setting after
- 3.3 mm/24 h - 5.2 mm/48 h - 8.5 mm/7 days
- Shore A hardness (DIN 53505)
- 40
- Tensile strength (DIN 53504S3a)
- 3.8 N/mm²
- Elongation at break (DIN 53504S3a)
- 700%
- In service temperature
- from -40°C to +70°C
- Elongation in service continuous use
- 20%
- Modulus of elasticity at +23°C (ISO 8339)
- 0.7 N/mm²
- Springback
- 90%
Typical values as Mapei prints them in data sheet edition 8102-11-2025 en (IT). They are not a specification for your project: the current Mapei data sheet is.
On site
Packs, mixing and storage.
- We stock
- 600 ml
- Mapei packaging
- Boxes of 12 (300 ml cartridges). Boxes of 20 units (600 ml cartridges).
- Storage
- Mapeflex PU 45 FT may be stored for 12 months in a cool, dry place in its sealed, original packaging.
Mapeflex PU 45 FT in Tanzania
Tell us the area. We will quote the job.
Sahihi is an authorized Mapei distributor in Dar es Salaam. Send the quantity of Mapeflex PU 45 FT you need, or describe the job and we will work it out with you.