Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
- Technical Characteristics
- Epojet LV are epoxy adhesives made up of two pre-measured components (component A = resin and component B = hardener) that must be mixed together before use.
- Once mixed, Epojet LV become a very fluid liquid that can easily penetrate even in microcracks.
- Epojet LV polymerise without any significant amount of shrinkage, also on wet surfaces and once hardened are waterproof and resist chemical agents present in the air. They also have very good insulating properties and high mechanical strength.
Applications & Uses
- Applications
- Application Method
- Adhesive & Sealant Type
- Where to Use
- Monolithic sealing of cracks.
- Bonding steel plates to concrete (béton plaqué) by low pressure injection.
- Some Application Examples
- Structural repair of beams, pillars and cracked floors by low pressure injection.
- Reinforcement of beams and floors by injection with the béton plaqué method, when the plates to be bonded are fitted with lateral flaps and it is therefore impossible to apply Adesilex PG1 or Adesilex PG2.
- Repair of architectural concrete, wall coverings and architectural elements that are crumbly.
- Structural consolidation and restoration of civil and industrial road constructions and underground works that show signs of microcracking.
- Sealing of cracks in cementitious screeds.
- Restoration, by injection, of concrete structures damaged by earthquakes, settlements or impacts.
- Recommendations
- Do not use Epojet LV if the temperature is lower than +10°C.
- Do not apply Epojet LV on dusty, crumbling or weak substrates.
- Do not use Epojet LV for sealing expansion joints.
- Application Procedure
Preparation of the substrate
Before injecting the product, the concrete surface must be perfectly clean and sound.
Sealing cracks by injection
- Make a series of holes of 8-9 mm in diameter on the sides of the cracks and directed so they intercept the same cracks. Blow out the cavities with compressed air to remove all the dust formed during the drilling. Insert the appropriate injection tubes in the holes and seal the entire working surface with Adesilex PG1 or Adesilex PG2.
- If it is not possible to drill holes because the cracks are so small and widespread throughout the concrete, use injectors with a flat end plate and fasten them to the concrete over the cracks with expansion plugs, or with Adesilex PG1 or Adesilex PG2.
- Wait until Adesilex PG1 or Adesilex PG2 has hardened (at least 12 hours) then inject compressed air to make sure that the injection system is completely free.
Positioning the steel reinforcement and injection
Clean all traces of rust or grease from the reinforcements by sandblasting to bright metal (SA 2½). Once these preparation procedures have been completed, securely fix the steel plates to the concrete with expanding bolts. Position the injectors in the space between the structure and the plate reinforcements and seal with Adesilex PG1 or Adesilex PG2. The latter product has a longer pot life in comparison with Adesilex PG1. Use the same product to seal any gaps between the concrete structure and the strengthening element. After Adesilex PG1 or Adesilex PG2 has hardened, inject Epojet LV through injectors.
Preparation of the products
- The two components of Epojet LV must be mixed together. Pour component B into component A and mix by hand using a trowel (for small amounts), or with a low speed heavy duty drill (for large quantities), avoiding the formation of air bubbles, until the mix is completely homogeneous.
- Do not use partial quantities of the parts as this may produce an imbalance in the proportions which could lead to incomplete hardening of Epojet LV. If partial quantities are required use an electronic precision scale.
Application of the products
- Inject Epojet LV immediately after its preparation with a suitable pump, starting from the lowest tube. Inject until the resin overflows out of the next tube. Close the lower tube and continue injecting until the entire crack is completely sealed. Horizontal cracks can be sealed simply by pouring Epojet LV into crack.
- Epojet LV must be applied within 35 from preparation at a temperature of +23°C.
- Do not use Epojet LV when the outside and the substrate temperature is below +10°C.
Cleaning
Due to the strong adhesion of Epojet LV and Epojet LV 40 it is recommended to clean working equipment with a solvent (ethyl alcohol, toluene etc.) before the product dries.
- Consumption
Sealing cracks 1.1 kg/l of cavity to be filled Bonding concrete-steel 1.1 kg/m² per mm of thickness
Properties
- Physical Form
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Density | 1.1 | g/cm3 | — |
| Consistency | Liquid | — | — |
| Brookfield Viscosity (rotor 2 - 20 revs) | 300.0 | mPa•s | — |
| Consistency of Mix | Very fluid liquid | — | — |
| Color of Mix | Transparent yellow | — | — |
| Density of Mix | 1.1 | kg/l | — |
| Brookfield Viscocity (shaft 1 - 5 revs) | 140.0 | Pa.s | — |
| Workability Time (at +23°C) | 35.0 | minutes | EN ISO 9514 |
| Workability Time (at +30°C) | 15.0 | minutes | EN ISO 9514 |
| Setting Time (at +23°C) | 2021-07-08 | hours | — |
| Setting Time (at +30°C) | 120 - 180 | minutes | — |
| Application Temperature (at +23°C and 50% R.H.) | 10 - 30 | °C | — |
| Complete Hardening Time (at +23°C and 50% R.H.) | 7 days | — | — |
| Bond Due to Tensile Strength | Cohesive failure of the substrate | — | EN 12618-2 |
| Bond Due to Inclined Shear Strength | Monolithic failure | — | EN 12618-3 |
| Volumetric Shrinkage | 2.1 | % | EN 12617-2 |
| Glass Transition Temperature | min. 40 | °C | EN 12614 |
| Sand Column Injectability (Dry State, injectability class) | 90.0 | seconds | — |
| Sand Column Injectability (Damp State, injectability class) | 90.0 | seconds | — |
| Sand Column Injectability (Dry State, indirect traction) | 11.0 | N/mm2 | EN 1771 |
| Sand Column Injectability (Damp State, indirect traction) | 10.0 | N/mm2 | EN 1771 |
| Durability (Freeze/Thaw and Wet/Dry Cycles) | Cohesive failure of the substrate | — | EN 12618-2 |
| Development of Tensile Strength (+10°C) | min. 3 | N/mm2 | EN 1543 |
| Tensile Strength | 50.0 | N/mm2 | EN ISO 527 |
| Tensile Modulus of Elasticity | 2900.0 | N/mm2 | EN ISO 527 |
| Deformation at Failure | 2.9 | % | EN ISO 527 |
| Compression Strength | 70.0 | N/mm2 | ASTM D 695 |
Safety & Health
- Safety Instructions for the Preparation and Application
When the product reacts it generates considerable heat. After mixing components A and B, we recommend applying the product as soon as possible and never leaving the container unattended until it is completely empty.
Packaging & Availability
- Packaging Type
- Packaging
- 5 kg kit (component A = 4 kg - component B = 1 kg)
- 2.5 kg kit (component A = 2 kg - component B = 0.5 kg).
Storage & Handling
- Storage
24 months in their original packaging. Store the products in an area with a temperature not lower than +5°C.