High build epoxy based repair mortar for vertical and overhead applications
Vetorep ER356 is a three component epoxy based thixotropic solvent free and fast strength development repair mortar. Once components of the kit are mixed the products becomes a high strength abrasion resistant that can be built up to 40 mm in horizontal repairs and vertical repairs in one go.
Vetorep ER356 is supplied in 15kg kits, with Yield = 15 Liters/Kit
Vetoprime EP491 is supplied in 4 liters Kits, Coverage = 7-9 m2Liter
Vetonit Solvent XX400 is supplied in 4 liters can, Coverage = 4liters/can
Original sealed kits of Vetorep ER356 has a shelf life of 12 months provided it is stored clear of ground in a dry and shaded temperature controlled place <25ºC.
Substrates should be primed using Vetoprime EP491. Predominantly vertical and metal substrates should be primed using Vetoprime EP491. In both cases, the primer should be mixed in the proportions supplied, adding the entire contents of the ‘hardener’ tin to the ‘base’ tin. The two components should be thoroughly mixed together for 3 minutes.
The mixed primer should be scrubbed well into the prepared substrate, taking care that all imperfections in the surface are properly coated and avoiding ‘pudding’ in depressions. If the primer is absorbed within 30 minutes, a second coat should be applied before continuing. Vetorep ER356 can be applied as soon as the primer has started to gel but still has surface ‘tack’. This is normally between 30 minutes and 4 hours dependent on the ambient and substrate temperatures. If the primer cures hard, a second application must be made before application of Vetorep ER356. The usable life of the mixed primer is approximately 60 minutes at 20ºC or 30 minutes at 35ºC.
Care should be taken to ensure that Vetorep ER356 is thoroughly mixed to produce a fully homogeneous trowellable mortar. Vetorep ER356 must be mixed mechanically. The ‘hardener’ and ‘base’ components must be stirred thoroughly to disperse any settlement before mixing them together. The entire contents of the ‘hardener’ container should then be emptied into the ‘base’ container and thoroughly mixed for 3 minutes, then emptied into a forced action mixer of adequate capacity. Add the aggregate slowly with the mixer running and continue for 2 to 3 minutes until all the components are thoroughly blended. Under no circumstances should part packs be used. A slow speed heavy duty drill fitted with a purpose mixer can be facilitated.
Apply the mixed Vetorep ER356 to the prepared substrate by float/trowel, pressing firmly into place to ensure positive adhesion and full compaction. Thoroughly compact the mortar around any exposed reinforcement. In restricted locations, or where exposed reinforcing steel is present, application by gloved hands is an acceptable alternative but, in all cases, the product must be finished to a tight surface with a steel trowel. Vetorep ER356 can be applied in sections up to 100 mm thickness in horizontal locations, up to 50 mm thickness in vertical locations or up to 40 mm in overhead sections in a single application and without the use of formwork. Thicker vertical sections may sometimes be possible dependent on the profile of the substrate and the volume of exposed reinforcing steel but should generally be built up in layers. When larger areas are being rendered, a checkerboard application technique is recommended.
Additional build-up can be achieved by application of multiple layers. Exposed steel reinforcing bars should be firmly secured to avoid movement during the application process as this will affect mortar compaction, build and bond.
Where thicker sections are required, the surface of the intermediate applications should be reprimed and scratch-keyed to provide a suitable surface for subsequent layers. The application of additional layers should follows between 8 and 24 hours at 20ºC after the first application. This time should be reduced at higher temperature. Re-priming and a further application of Vetorep ER356 may then proceed.
If sagging occurs during application, the Vetorep ER356 should be completely removed and re-applied at a reduced thickness on to the correctly re-primed substrate.
Vetorep ER356 is finished by the use of a wood float and closed with a steel trowel. The completed surface should not be overworked.
Low temperature working
Vetoprime EP491 and Vetorep ER356 can be applied in cold conditions down to 12ºC. The materials should not be applied when the substrate and/or air temperature is 12ºC and falling. At 12ºC static temperature or at 12ºC and rising, the application may proceed.However it is highly recomended to apply the products at temperatures above 15ºC to dismiss practical empediments of application.
High temperature working
At ambient temperatures above 35ºC Vetoprime EP491 & Vetorep ER356 will have shorter pot life and working life. The materials should be stored in the shade or in an air-conditioned environment and should not be applied in direct sunlight.
Curing protection is not necessary for Vetorep ER356.
Over-coating with protective/decorative finishes
Vetorep ER356 is extremely durable and will provide excellent protection to the concrete and embedded steel reinforcement within the repaired locations. The surrounding parts of the structure may benefit from the application of a protective coating, thus bringing them up to the same protective standard as the repair itself. Saveto recommend the use of Vetotop range of epoxy resin, chemical-resistant, protective coatings.
For surrounding areas not subjected to chemical attack or physical wear, Saveto recommend the use of the Vetotop AC range of anti-carbonation, anti-chloride protective coatings. These products provide a decorative and uniform appearance as well as protecting areas of the structure which might otherwise be at risk from the environment.
Vetotop epoxy resin protective coatings should be applied within 24 hours. Non-epoxy or urethane Vetotop products should not be applied until the Vetorep ER356 is at least 3 days old. For further advise, consult the local Saveto office.
Vetoprime EP491 and Vetorep ER356 should be removed from tools, equipment and mixers with Vetonit Solvent XX400 immediately after use.
Clean the surface and remove any dust, unsound or contaminated material, plaster, oil, paint, grease, corrosion deposits or algae.
Roughen the surface and remove any laitence by light scabbling or grit-blasting. Saw cut or cut back the extremities of the repair locations to a depth of at least 5 mm to avoid feather-edging and to provide a square edge. Break out the complete repair area to a minimum depth of 5 mm up to the sawn edge.
Oil and grease deposits should be removed by steam cleaning, detergent scrubbing or the use of a proprietary degreaser. The effectiveness of decontamination should then be assessed by a pull-off test.
Expose fully any corroded steel in the repair area and remove all loose scale and corrosion deposits. Steel should be cleaned to a bright conditions paying particular attention to the back of exposed steel bars. Grit-blasting is recommended for this process. If lost area of steel is less than 25% then compensate for the loss, shall the lost steel are be higher than 25% then completely replace the reinforcement steel.
Vetorep ER356 shall be applied in a checkerboard fashion,at a minimum thickness of 5 mm. The use of Vetorep ER356 in a single layer shall conform to:
- Vertical application up to 40 mm.
- Horizontal concrete repair up to 100 mm.
- Overhead applications up to 40 mm
Vetorep ER356 should not be used when the temperature is below 12ºC and falling. Do not mix part packs under any circumstances. Vetorep ER356 should not be used in overhead locations – use Vetorep ER356 for this purpose. Vetorep ER356 should not be exposed to moving water during application. Exposure to heavy rainfall prior to final set may result in surface scour. If any doubt arises concerning temperature or substrate condition, consult the local Saveto office.
Vetoprime EP491, Vetonit Solvent XX400 and Vetorep ER356 should not come into contact with the skin, eyes or be swallowed. When using ensure adequate ventilation and avoid inhalation of vapor. Some people are sensitive to resins, hardeners and solvent. Wear suitable protective clothing, gloves, and eye protection. The use of barrier creams provides additional skin protection. In case of contact with eyes, rinse immediately with plenty of clean water and seek medical attention immediately. If swallowed seek medical attention immediately. Do not induce vomiting.
Vetorep ER356 and Vetoprime EP491 are non-flammable. Vetonit Solvent XX400 is flammable. Keep away from sources of ignition. No smoking. In the event of fire, extinguish with CO2 or foam. Do not use a water jet.
For further information, refer to the Product Material Safety Data Sheet.
Saveto endeavors to ensure that any advice, recommendations, information it may give, is accurate and correct. It cannot accept any liability either directly or indirectly arising from the use of its products, because it has no direct or continuous control over where or how its products are applied, whether or not in accordance with any advice, specification, recommendation or information given by us.
Saveto has the right to change any of the specifications mentioned in the Technical data sheets upon its discretion without prior notification. Hard copies of TDSs are printed once or twice a year, while our technical data sheets are continuously being updated as per R&D improvements and new 3rd party testing; kindly refer to our website for the latest updated TDSs.
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