Sikadur-52 is a two-component, solvent-free, low-viscosity injection resin based on high-resistance epoxy resin. It fills and seals cracks and pores in concrete structures such as buildings, bridges, columns, beams, foundations, walls, pavements and water ponds, structurally joining the concrete sections and forming an effective barrier against water and corrosive elements.
Key Features
Solvent-free
Can be applied on dry or wet surfaces (SSD, no free water)
Usable at low temperatures (min. +5 °C)
Hardens without shrinkage
High adhesion and mechanical resistance
High non-brittle hardness
Low viscosity — injectable with one-component systems
Applications
Crack and pore injection in buildings, bridges and industrial facilities
Columns, beams, foundations and wall crack repair
Pavement crack injection
Water pond structural crack sealing
Gravity pouring on horizontal slabs
Pressure injection on vertical structures
Technical Data
Property
Value
Chemical base
Epoxy resin (solvent-free)
Density (A+B mixed)
1.1 kg/L
Mixing ratio (A : B)
2 : 1 by weight / 1.8 : 1 by volume
Colour (mixed)
Transparent yellow liquid
Viscosity (+20 °C)
~430 mPa·s
Compressive strength (7 d / +23 °C)
52 N/mm²
Flexural strength (7 d / +23 °C)
61 N/mm²
Modulus of elasticity in flexure (7 d / +23 °C)
1,800 N/mm²
Tensile strength (7 d / +23 °C)
37 N/mm²
Tensile adhesion (concrete, 7 d / +23 °C)
> 4 N/mm² (concrete failure)
Substrate temperature
+5 °C to +30 °C
Max. crack width for injection
5 mm
Pot life (+23 °C)
~25 minutes
Consumption
1.1 kg per litre of filling
Shelf life
2 years (original sealed packaging, cool indoor storage)
