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Key technical facts
- Coverage
- 1,6 – 1,7 kg/m² for 1 mm thickness.
- Mixing Ratio
- 75/25% by weight (component A / component B) When bulk material is used, the exact mixing ratio must be maintained by accurately weighing and dosing each component.
- Pot Life (at +23 °C)
- ~80 minutes
- Full Cure Time (+20 °C)
- 1 week
- Density (at +23 °C)
- 1,65 ± 0,1 kg/l (A+B mix)
- Color
- Component A: White paste Component B: Black paste A+B mixture: Gray paste
Last updated:
This page has been translated from the product's original information. Please refer to the technical data sheet for binding technical values.
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Description
DEMCO® 930 is a two-component, solvent-free, epoxy-based thixotropic adhesive designed for structural strengthening.
Advantages
- Easy to mix and apply.
- Thanks to its thixotropic properties, it can be applied to vertical and overhead surfaces without running or sagging.
- High mechanical strength and structural bond strength.
- As the components are different colors, the mix can easily be checked visually.
- Impermeable to water and moisture.
- Resistant to environmental influences.
Application Areas
DEMCO® 930 is used for the strong bonding of plates used in structural strengthening to concrete and similar surfaces.
Technical Properties
| Product Information | |
|---|---|
| Chemical Base | Epoxy resin |
| Color | Component A: White paste Component B: Black paste A+B mixture: Gray paste |
| Density (at +23 °C) | 1,65 ± 0,1 kg/l (A+B mix) |
| Technical Data | |
| Pot Life (at +23 °C) (EN ISO 9514) | ~80 minutes |
| Adhesion to Concrete (TS EN 1542) | ≥ 4 N/mm² (after 7 days, at +23 °C) |
| Sag Resistance | No sagging at 3-5 mm thickness |
| Application Thickness | Max. 30 mm |
| Open Time (TS EN 12189) | ~60 minutes |
| Full Cure Time (+20 °C) | 1 week |
| Application Information | |
| Mixing Ratio | 75/25% by weight (component A / component B) When bulk material is used, the exact mixing ratio must be maintained by accurately weighing and dosing each component. |
| Surface Moisture Content | Max. 4% |
| Surface Temperature | Min. +10 °C / max. +35 °C |
Surface Preparation and Application
Surface preparation: The surface of the structural element to be treated must be cleaned of residues such as plaster, paint, oil and rust, as well as weak cement laitance and weak particles, and any necessary repairs must be carried out to obtain a smooth surface.
Mixing: All of component B must be poured into component A, and components A+B must be mixed with a low-speed mixer (approx. 300 rpm) and a suitable mixing paddle for at least 3 minutes until a homogeneous mixture is obtained, making sure that no unmixed material remains on the sides and bottom of the container. Take care to avoid air bubbles during mixing. Mix only as much material as can be used within the pot life.
Application Conditions
- The ambient temperature during application should be between +10 °C and +35 °C.
- DEMCO® 930 is supplied in ready-to-use sets. Solvents or similar thinning agents must not be added to the mixture during application.
- Care should be taken to prepare only as much material as can be used within the working time.
- Mixing must always be carried out using suitable mechanical mixers. Do not mix by hand.
- For special cases not covered in the technical data sheet (different application areas, weather conditions, etc.), consult the Demmerg Chemicals technical team.
Coverage
1,6 – 1,7 kg/m² for 1 mm thickness.
Storage and Shelf Life
Shelf life: 12 months from the date of manufacture.
Storage conditions: Store in original, unopened and undamaged packaging in a dry environment between +10 °C and +30 °C. Protect from direct sunlight.
Products should be stored in unopened original packaging in a ventilated, cool and dry place, away from moisture, frost, fire and direct sunlight. For short-term storage, stack no more than 3 pallets on top of each other and dispatch on a first-in, first-out basis. For long-term storage, pallets should not be stacked.
Packaging
| Set | 5 kg (A + B) ready-to-mix set |
| Component A | 3,75 kg can |
| Component B | 1,25 kg can |
Safety Precautions
When using this product, the usual precautions for handling chemical products must be observed. Wash hands thoroughly with water after work or during breaks; do not eat, drink or smoke. Additional safety information on the use and transport of the product is given in the Material Safety Data Sheet.
Approvals / Standards
Tested according to EN 1504-4 within the scope of the CE certificate.
