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Key technical facts
- Coverage
- A single-coat consumption of 0.150–0.200 kg/m² achieves a dry film thickness of 70 µm.
- Mixing Ratio (by weight)
- A/B (80/20)
- Pot Life (hours, 23°C, 100 ml)
- Min. 4
- Drying Time (23°C) – Touch Dry (hours)
- 1-2
- Drying Time (23°C) – Full Cure (weeks)
- 1
- Mixture Density (g/cm³, 20°C)
- 1.40 ± 0.10
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Description
High-quality, two-component, acrylic aliphatic polyurethane-based electrically conductive coating system. It provides homogeneous electrical continuity on applied metal surfaces, helping to control electrostatic charge accumulation and safely dissipate it to grounding systems. It exhibits high resistance to UV radiation, atmospheric conditions, and harsh industrial environments. It delivers long-lasting corrosion protection together with permanent conductivity performance on steel structures, machine housings, vehicle superstructures, and metal surfaces exposed to corrosion.
When applied at the specified dry film thickness (DFT) and under proper grounding conditions, the coating system is formulated to meet the electrical surface resistivity requirements defined in EN 60079-0 Section 26.13.
Advantages
- Exhibits high abrasion resistance.
- Works in harmony with the applied surface.
- Does not crack.
- Protects the applied surface against scratching, yellowing, and soiling.
- Thanks to its UV resistance, it does not chalk or become dull.
- Provides surface resistance values compliant with ATEX/TS EN IEC 60079-0 requirements.
Application Areas
- Special machines intended for ATEX applications and for the prevention of electrostatic charging.
Technical Properties
| Number of components | 2 |
| Mixing Ratio (by weight) | A/B (80/20) |
| Solids Content (% by weight) | 77 |
| Mixture Density (g/cm³, 20°C) (TS EN ISO 2811-1) | 1.40 ± 0.10 |
| Pot Life (hours, 23°C, 100 ml) (DIN 16945) | Min. 4 |
| Mixture Viscosity (mPa·s, 25°C) (EN ISO 3219) | 400-600 |
| Electrical Conductivity Value* (100 V) (DIN EN 61340-4-1) | 10⁴ Ω – 10⁶ Ω |
| Drying Time (23°C) (TS 4317) | |
|---|---|
| Touch Dry (hours) | 1-2 |
| Recoat Time (hours) | 16-24 |
| Full Cure (weeks) | 1 |
*These values may vary depending on environmental conditions (temperature and humidity) and the equipment used for measurements.
Mechanical Properties
| Abrasion Resistance (mg) (Taber, CS17, 1 kg, 1000 revolutions) (ASTM D 4060) | ~ 30 |
Surface Preparation and Application
Mixing: After component A has been mixed in its original container, the entire component B should be added to component A and stirred for at least 3 minutes until a homogeneous mixture is obtained. To prevent air bubbles from forming in the mixture, mixing at low speed is recommended.
Surface preparation: Prior to application, all substances that may reduce adhesion (such as oil, dirt, cleaning agents, phosphate layers, etc.) must be removed from the surfaces to be coated. Abrasive blast cleaning to Sa 2½ in accordance with EN ISO 12944-4 must be carried out, and a medium (G) surface profile must be achieved in accordance with EN ISO 8503-1.
Application: The epoxy-based conductive primer DEMCO EPOX 2485 STEEL - CONDUCTIVE is applied to the prepared surface by brush, roller or airless spray. After 8–10 hours, DEMCO PUR 4150 TOP COAT UV/S – CONDUCTIVE is applied evenly over the entire surface by brush, roller or airless spray at a uniform consumption rate to obtain a homogeneous film.
- After the primer coat has been applied, make sure that the primer surface has reached touch-dry hardness; depending on the ambient temperature, DEMCO PUR 4150 TOP COAT UV/S – CONDUCTIVE should be applied approximately 14 hours later.
- During application, an appropriate quantity of mixture should be prepared, and work should continue until the entire prepared mixture has been used.
- Thinner: can be thinned with PUR 1000 THINNER polyurethane thinner.
Application Conditions
- The working area temperature should be between 15°C and 25°C.
- The ideal substrate temperature for application is between 15°C and 25°C.
- The temperature must not fall below 10°C. In both indoor and outdoor applications, substrate conditions, ambient temperature, and ambient humidity must be taken into account.
- The surface relative humidity should be below 4%, and the ambient humidity should be below 80%.
- After application, the surface should not be touched or exposed to water for 24 hours.
- When applied at 20–25°C, DEMCO PUR 4150 TOP COAT UV/S – CONDUCTIVE reaches full cure at room temperature in approximately 7 days.
- Electrical resistance measurements should be performed after full curing.
Coverage
A single-coat consumption of 0.150–0.200 kg/m² achieves a dry film thickness of 70 µm.
Storage and Shelf Life
6 months when stored at 15–25°C in unopened, original packaging, in closed, dry storage areas protected from direct sunlight.
Packaging
Total Net: 20 kg (A: 16.00 kg / B: 4.00 kg)
Approvals / Standards
Surface resistance tests have been performed in accordance with TS EN IEC 60079-0, Section 26.13.
Safety Precautions
Avoid contact with skin and eyes. In case of contact, rinse thoroughly with plenty of water and seek medical attention. Use protective gloves, clothing, and goggles during application. Keep out of reach of children. If swallowed, seek medical help immediately. Do not induce vomiting. Refer to the Material Safety Data Sheet (MSDS) for detailed safety information.
