Airport lighting installations and road sensor projects demand speed. Downtime means disruption and cost. Megapoxy CT5 is the purpose-built encapsulation compound that delivers rapid return to service. It cures fast, even in cold or damp conditions. Critical roadway electronics are secured quickly, reliably, and non-brittle for the long term.

Why this product exists

Roadway infrastructure faces unique challenges: constant traffic load, extreme weather, and the need for minimal disruption during installation. Megapoxy CT5 was engineered specifically for encapsulating sensitive in-road components like inductive detector loops, weigh-in-motion sensors, and aircraft landing lights. It prevents costly re-dos by providing a robust, long-term solution that withstands the dynamic forces of asphalt and concrete roadways, setting quickly to minimise lane closures.

The numbers that matter

Megapoxy CT5 offers a work time of just 8 minutes at 25°C, allowing crews to complete critical encapsulation tasks rapidly before the material begins to set. It achieves initial cure in 6 hours at 25°C, or 12 hours at 15°C, enabling a swift return to service for roads and runways even in cooler conditions. Its 40% elongation at break ensures a non-brittle encapsulation that can flex and move with the substrate, resisting cracking and failure under traffic loads. A Shore D hardness of 60-70 provides excellent durability without becoming overly rigid, protecting embedded electronics from impact and vibration.

What it's like to use

Megapoxy CT5 is a simple 1:1 mix ratio by volume, making preparation straightforward. Both parts are pre-measured in kits for immediate use. Mechanical mixing is recommended for thorough blending, but care should be taken to minimise splashing and air entrapment. Precision in mixing is crucial; incorrect ratios or insufficient blending will compromise the final cured properties. For high-build or bulk applications, dry epoxy-quality sand or fine aggregate can be gradually added while mixing to adjust consistency. Cleaning of tools and mixing equipment is accomplished with Megapoxy Thinners.

Where this product excels

This compound is specifically formulated for critical installations on asphaltic and concrete roadways:

  • Airport Landing Lights: Providing a secure, non-brittle seal around embedded runway lighting, ensuring long-term performance under extreme operational conditions.
  • Inductive Detector Loops: Encapsulating traffic and automatic gate loops, protecting sensor wiring from wear, moisture, and road stresses for reliable vehicle detection.
  • Weigh-in-Motion Sensors: Securing sensitive weighbridge electronics within the road surface, maintaining calibration and functionality against constant heavy vehicle loads.
  • Roadway Lighting: Backfilling around other embedded roadway light fixtures, ensuring rapid setting and robust protection in all weather conditions, including damp and cold environments.

How it fits in a real system

Megapoxy CT5 is typically the final step in securing embedded electronic components within new or repaired road surfaces. After the sensors or lighting elements are positioned, CT5 is poured into the routed channels or cavities. Its rapid cure and ability to bond to both asphalt and concrete make it ideal for immediately returning traffic to the treated area. The compound protects the sensitive electronics from the harsh road environment, acting as a robust, non-brittle barrier against moisture, vibration, and physical damage from traffic.

Choose this when

  • When encapsulating inductive loops, weigh-in-motion sensors, or aircraft landing lights on asphalt or concrete.
  • When rapid return to service is paramount, requiring a fast-setting compound that minimises road or lane closure times.
  • When working in cold or damp conditions, as it is engineered to cure reliably under adverse weather.
  • When a non-brittle, durable encapsulation is required to withstand constant traffic loads and environmental stressors.

Don't use this when

  • Not for: general-purpose bonding or adhesive applications where specific structural strength or flexibility profiles are required.
  • Not for: structural concrete repair. While strong, its primary role is encapsulation, not load-bearing repair of concrete itself.
  • Not for: use as a flexible joint sealant. Its 40% elongation makes it non-brittle, but it is not designed as an active movement joint sealant.
  • Not for: floor coating applications. It is an encapsulant, not a protective surface coating for large areas.

Specialisation vs. General Purpose

Megapoxy CT5 is engineered as a highly specialised compound. Unlike more general-purpose epoxies or concrete coatings, CT5 is purpose-built for the specific demands of encapsulating in-road electronics and aircraft lighting. It is not formulated as a standard adhesive, a structural concrete repair material, a flexible joint sealant, or a broad-area floor coating. Its unique blend of rapid cure, non-brittle performance, and tolerance for adverse conditions makes it distinct within the Megapoxy family, ensuring optimal results where these highly specific requirements converge.