Single component, rapid-hardening, paintable, thixotropic polyurethane sealant and adhesive with a high modulus of elasticity WHERE TO USE Mapeflex PU45 has been specially developed for sealing expansion and distribution joints in horizontal and vertical surfaces, including those which are subject to occasional chemical attack provoked 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 integrate mechanical fasteners. Some application examples Used as a sealant: • Sealing expansion and distribution joints subject to movements up to 20% of the average width of the joint in: – industrial floors subject to vehicular traffic, including heavy vehicles; – concrete floors for internal and external car-parks, supermarkets, shopping centres and warehouses; – ceramic and stone flooring and coatings, including in areas subject to intense traffic such as supermarkets and industrial environments where fork-lifts are in use; – concrete walls and general internal and external vertical structures where the use of a thixotropic product is required; – old concrete floors which are to be covered with a Mapefloor System. • Sealing general fillet joints. Used as an adhesive at thicknesses up to 3 mm: The high bonding characteristics and rapid-hardening properties of Mapeflex PU45 make it suitable for joining various materials and for bonding on a wide range of substrate materials. Mapeflex PU45 may be used to bond most building materials, for example cement and cementbased products, cellular concrete, natural stone, bricks, steel, copper, aluminium, general pre-painted surfaces, glass, mirrors, gypsum, wood and wood-based materials, ceramics, clinker, insulating material, plastics such as PVC, acrylic glass and polycarbonate and fibreglass. If Mapeflex PU45 is used to form flexible bonds, it is a multi-purpose product for constructing and finishing building works such as: • steel, aluminium and copper cladding; • wooden and plastic baseboards, skirting boards, cable beads, beading rods and corner guards; • pre-formed decorative elements; • bathroom fittings; • Sealing cracks. • Sealing pipe-work systems for air-conditioning and electric cables. • Sealing sheet-steel sections, such as flashing and guttering. • doorsteps and window sills in natural stone, such as marble and granite; • roofing tiles, concave roofing tiles, covering panels and insulation panels.

TECHNICAL CHARACTERISTICS Mapeflex PU45 is a single component, thixotropic, easy-to-apply polyurethanebased sealant and adhesive with a high modulus of elasticity, made according to a formula developed in MAPEI’s own R&D laboratories and meets the requirements of ISO 11600 class F20 HM. Solventfree, odourless with a low impact on the environment, Mapeflex PU45 is certified as EC1 R by the GEV Institute as a product with extremely low emission levels of volatile organic compounds. Mapeflex PU45 hardens following its reaction with atmospheric humidity and its special characteristics offers a guarantee...

TECHNICAL DATA (typical values) PRODUCT IDENTITY thixotropic paste grey, black (600 ml); white, grey, dark grey (113), black (300 ml) Density (g/cm³): Brookfield viscosity at +23°C (mPa·s): Recommended application temperature range: Final setting after: Set to light foot traffic: according to the depth of the joint FINAL PERFORMANCES Tensile strength (DIN 53504S3a) (N/mm²) – after 7 days at +23°C: Elongation at break (DIN 53504S3a) (%) – after 7 days at +23°C: Elongation in service continuous use (%): Modulus of elasticity at +23°C (ISO 8339) (N/mm²):

of fresh sealant with any type of solvent, otherwise it may not polymerise correctly. Once hardened, it may only be removed with Pulicol 2000. 300 ml cartridge; place the cartridge in the special extrusion gun, make a hole in the tip of the cartridge, screw on the extrusion nozzle, cut the nozzle at an angle of 45° and dependent on the width required. Squeeze out the product in a continuous flow into the joint. Take care to avoid entrapping air in the joint. Immediately after extruding the product, smooth over the surface with a tool with a suitable size and shape while keeping it continuously...