TL‑2000 (PRS) Spray Trial — Sydney Airport
A fast‑curing, non‑emulsion rejuvenation treatment applied on the western shoulder of Runway 16L/34R, demonstrating predictable return‑to‑service, friction safety, and lifecycle sustainability advantages.
Trial Dates
8 May 2020 & 18 June 2020
Application Rate
~1 kg/m² @ ~1 mm nominal thickness
Dry‑to‑Traffic
~30–45 minutes (weather‑dependent)
Application Modes
Airless sprayer & hand squeegee
Project Overview
Airfield Shoulder – Runway 16L/34R
Product:
PRS/TL‑2000 — viscous liquid composed of powdered dolomite, styrene, high‑quality bitumen and proprietary additives.
Application:
Spray wand/handpiece via airless sprayer in grooved areas; hand squeegee in non‑grooved areas.
Equipment:
Graco King 70:1 airless sprayer, COMP‑AIR C50 180 CFM compressor, hand squeegee.
Notes: tips sized to avoid blockage and ensure uniform coverage. Predetermined areas were marked to verify rate control.
Trial Areas & Conditions
Day 1 (8 May):
24°C air / 28.5°C pavement; wind 20.4 km/h NW; touch‑dry ~35–45 min depending on method.
Day 2 (18 June):
17.8°C air / 21.3°C pavement; wind 11.1 km/h ESE; touch‑dry ~30–38 min.
Patches:
Areas 1–8 (e.g., Area 1 ~97 m²; Areas 5–8 by squeegee). Xylene used in some spray mixes (2–10%) with blended product added to maintain ~1 kg/m².
Why This Method Is More Sustainable
Lifecycle Advantage:
Rejuvenation shifts programs from cyclical replacement to asset preservation, aligning with “perpetual pavement” principles and reducing capital and environmental cost over the network life.
We can prepare an NPV/payback comparison versus mill‑and‑fill for your specific climate, operations and access windows.
Application Summary
Rate control
Areas pre‑marked; typical target rate ~1 kg/m² at ~1 mm thickness.
Spray method
Airless sprayer with wand/handpiece; larger tips used to avoid blockage and ensure even fan.
Squeegee method
Used in non‑grooved areas to compare coverage and productivity.
Solvent usage
Limited xylene addition (≈2–10%) to aid spray; additional blended product applied to keep total mass ≈1 kg/m².
Friction
Lab testing (British Pendulum ASTM E303) indicated little to no reduction in friction after cure.
Operations
Dry‑to‑touch ≈30–45 minutes depending on conditions; predictable reopening for airfield/road environments.
See How Komobility Fits Your Maintenance Program
Frequently Asked Questions
Case Studies:
Road Repair and Sealing Works at Norfolk Island
TL‑2000 (PRS) Spray Trial — Sydney Airport
Examples of the Products Used by ILWONTECH
