Polyinject EP
Polyinject EP
Two component low viscous epoxy resing injection for sealing cracks and strengthening structures.
Properties
- Low viscosity allows penetration into the finest cracks
- Suitable for structural repairs
- Excellent bond to concrete, brick and masonry
- Excellent bond also to moist substrates
- Minimum creep under sustained load
- Resistant to wide range of chemicals
- Non-shrink, adheres with no loss of bond
- Can be applied pressure less and with pumps
Description
Polyinject EP is a 2-component injection resin on epoxide basis with specific chemical and physical properties to seal and bond cracks of widths between 0.05 mm and 10 mm. Due to its low mixture viscosity Polyinject EP can be applied pressure less as priming resin for concrete renovations or with injection pumps for injections. The particular material basis of Polyinject EP makes application even on slightly moist surfaces possible (see pull-off resistance).
TDS For Polyinject EP
- Step by Step
Surface preparation
The surface must be stable and free of separating substances. Insufficiently firm layers and concrete slurry must be removed. For this purpose the surface may be prepared by suitable mechanical processes such as e.g. shot blasting, milling or any other suitable mechanical means. Blow the cracks and treated surface with oil free air to ensure complete removal of all dust and loose particles. ensure that the surfaces are blown dry.
Work preparation
Polyinject EP can be applied pressure less or as injection resin using injection packers. The injection packers may be fixed into holes drilled directly into the crack or drilled diagonally from concrete adjacent to the crack or by the fixing of injection nipples. For further assistance and instructions regarding the packer fixing and design please refer to our method Statement.
Mixing
Pour the hardener (component b) into the resin (component a) in the indicated mixing ratio and mix with an electrical mixer (max. 300 rpm) until a homogenous mixture is produced. assure that the b component is evenly dispersed. Mixing must be carried out for at least 3 minutes. Only mix sufficient resin that can be used within the pot life of the material.
Pressure less application
In horizontal areas, wider cracks can be simply filled by pouring in Polyinject EP. To avoid
wastage and unnecessary material consumption you may use mastics or tapes to build a kind of reservoir along the cracks and treat the area subsequently with a short-hair lambskin roller.
Application with injection equipment
Polyinject EP can be injected with 1-component or 2-component injection pumps. the injection pressure should be at least 4 bar. After the work is finished the injection resin shall be allowed to cure for 24 hours and shall be left undisturbed for this time.
