Polyurethane adhesive for fixing polystyrene on flat roofs. It is used for bonding EPS and XPS polystyrene boards to flat roofs covered with tar paper, seamless bitumen insulation, sheet metal, as well as wooden, concrete, OSB, galvanized steel sheet or polyester-coated substrates.

Features

• one-component
• low pressure
• resistant to wind suction forces (confirmed by tests)
• very efficient (average efficiency about 10-12 m ² from a can)
• easy and convenient to use
• quick execution of works
• used in a wide range of temperatures, especially recommended in cold periods in autumn and spring
• shows excellent adhesion to concrete, wooden and wood-based substrates, tar paper as well as galvanized steel and sheets with a polyester coating

Technical data

• ambient temperature from -5 C to +30 C
• can temperature from +10 C to +25 C
• correction time up to about 4 minutes *
• dowel time after approx. 2 h
• full hardening time after 24 hours
• storage temperature from +5 C to +35 C
• apparent density 20 kg / m ³ 10%
• dimension stability after 48 h at +70 C and 90% relative humidity: length 1%, width and thickness 0.5%
• shear strength ≥ 75 KPa
• shear modulus ≥ 75 KPa
• tensile strength perpendicular to the surface, connection EPS / concrete, XPS / concrete for a joint thickness of 8 mm (in laboratory conditions, after 4 min open time, at a temperature of -5 C, at 30 C and 30% RH, in laboratory conditions at joint thickness 15 mm) ≥ 0.08 MPa
• tensile strength perpendicular to the surface, connection EPS / galvanized sheet, XPS / galvanized sheet for a joint thickness of 8 mm (in laboratory conditions, on a substrate made of sheet heated to a temperature of 50 C) ≥ 0.08 MPa
• tensile strength perpendicular to the surface, EPS / roofing felt, XPS / roofing joint for a joint with a thickness of 8 mm (in laboratory conditions, on a roofing felt heated to a temperature of 50 C): ≥ 0.08 MPa
• tensile strength perpendicular to the surface, connection EPS / concrete, XPS / concrete, EPS / OSB board, EPS / wood, EPS / sheet, XPS / sheet, EPS / EPS, XPS / XPS for a joint 8 mm thick (in laboratory conditions) ≥ 0.08 MPa
• consumption about 12 m ² from the can
• technical specification ITB-KOT-2018/0532
• 750 ml package (can)

* all the mentioned parameters refer to the temperature of +23 C and 55% of the relative air humidity; higher temperatures and higher air humidity accelerate, while lower temperatures and lower air humidity slow down the curing time of the adhesive