RADAR

RF-transparent coatings that protect radar performance by keeping radome surfaces dry, clean, and dielectrically stable.

The Problem

The radome — the protective housing over a radar antenna — is part of the signal path. Water film, salt deposits, ice, and contaminant accumulation on the radome surface alter its dielectric properties, which means they alter what the radar perceives. This applies equally to defence radar operated by DRDO and the Indian Armed Forces, and to automotive ADAS radar sensors in modern vehicles. The physics is identical. Neither failure is acceptable.

The Solution

Keep the radome surface clean and the radar sees clearly.

ViriDyn’s RF-transparent superhydrophobic coatings prevent water film formation on radome surfaces. Water beads and rolls off instantly rather than spreading — maintaining the radome’s dielectric consistency and preserving the signal path. Salt-fog resistance and self-cleaning protection against dust and pollution are included, both of which accumulate on outdoor and vehicle-mounted radar surfaces over time. Crucially, the coatings are fully RF-transparent — no dielectric interference is introduced, and the radar’s calibrated performance is preserved. Standard RAL colour matching is available for military and defence applications.

What We Protect

  • Ground-based and airborne defence radar radomes
  • Naval and maritime surveillance radar systems
  • DRDO programme radar and sensor installations
  • Automotive ADAS radar sensors and housings
  • Short-range and long-range radar for autonomous vehicles
  • Weather and air traffic control radar installations

What Changes

Improves:

  • Radome dielectric stability — surface stays dry and consistent
  • Radar measurement accuracy in wet and contaminated conditions
  • Salt-fog resistance for maritime and coastal radar deployments
  • Self-cleaning performance — reduced dust and pollution build-up
  • Long-term signal integrity between maintenance cycles

Improves:

  • Water film formation on radome surfaces
  • Dielectric interference caused by surface contamination
  • Ice and snow accumulation on outdoor radar installations
  • Signal attenuation during rainfall
  • Unscheduled maintenance caused by surface degradation

✦ Authorised ViriDyn Partner

✦ Locally Stocked in India

✦ Application Engineering Support

✦ 10 Years of Domain Expertise

Recommended Products

VIRIDYN SH-2

Superhydrophobic, RF-Transparent — 2-Step The highest-performance option for factory application on new antenna hardware. Two-part system delivers maximum durability. Rain-fade, salt-fog, ice and snow protection.

VIRIDYN SH-1

Hydrophobic, RF-Transparent — Field Reapplication Kit Quick in-field restoration of hydrophobicity and RF transparency for deployed SATCOM terminals. Fast-curing, one-step system. No specialist tools required.

VIRIDYN RF

Hard, Hydrophobic, RF-Transparent For automotive ADAS radar sensors and vehicle-mounted defence radar. Abrasion-resistant hard shell. Repels water and road contaminants.

Surface Protection
That Holds Up
Where It Matters.

Talk to us before your next build, deployment, or qualification.

AEROSPACE & DEFENCE TELECOM & SATCOM ELECTRONICS & PCB
SENSORS & LENSES
AUTOMOTIVE

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