Application Guidelines
1. Surface Preparation: Ensure the surface is dry and free from materials that might prevent bonding, such as dust and loose particles (applicable to both asphalt and concrete surfaces). Proper preparation of the underlay is crucial for successful application.
Primer Application: Apply XP 13 Primer. Refer to the TDS of XP 13 Primer for detailed instructions.
Base Coat Application: Apply the base coat of the PU Spray coat P 21 system using a wet-pour mixture of XP-14 and recycled rubber to built Thickness of 10mm or as Specified.Refer to the TDS of XP 14 for details.
2. Top Spray Coating: Once the surface is fully cured (48-72 hours, depending on temperature and humidity), apply the final top spray coating, which consists of RT—PU Spray Coat P21 mixed with EPDM granules (0.5-1.5 mm granulometry).
Mixing: Thoroughly mix RT – PU Spray Coat P21 with EPDM granules until a uniform colour and coating are achieved. The mixing process should last 1-2 minutes with the appropriate mixer.
Application: Apply the mixture using a suitable spraying machine in two “crosshatch” layers. To ensure complete coverage, the first layer should cure for 12-24 hours before applying the second layer perpendicular to the first.
Curing: The coating cures at ambient temperature and is influenced by atmospheric moisture. Higher temperatures and moisture will shorten the cure time. Complete curing occurs within 3-5 days.
Applyfinal UV-resistant clear coat of PU RC WB(2K) for better colr Retention.
Technical Characteristics
| # | Characteristic | Value |
|---|---|---|
| 1 | Mixing Ratio (%) | 85%: 15% (By weight) or as specified on the container |
| 2 | Viscosity (25°C) | 900-3000 mPa.s |
| 3 | Density of Mixture (25°C) | 1.48-1.58 kg/L |
| 4 | Pot Life (25°C) | Approximately 30 minutes |
| 5 | Application Temperature | 10 – 40°C |
| 6 | Curing (25°C and 60% Relative Humidity) | 9-12 hours |
| 7 | Color | Refer to Carbolink’s PU colour chart |
Consumption
RT – PU Spray Coat P21: 1.35 kg/m²
Top Spray Coating (RT – PU Spray Coat P21 + EPDM 0.5-1.5 mm thickness, two layers): 2.25 kg/m²
Mixing Ratio: 60:40 by weight (RT – PU Spray Coat P21: EPDM 0.5-1.5 mm)
