The XRAM-A Series provides functional radar absorbing powder agents across 2 to 18 GHz with reflection loss down to -10 dB, compatible with multiple resin systems and designed for integration into custom stealth coatings, composite structures, and electromagnetic shielding materials.
Radar absorbing coating systems and stealth composite structures ultimately depend on the performance characteristics of the absorbing agent particles dispersed within the matrix material. A coating formulation is constrained by its absorbing agent grade in terms of the frequency bands it can address, the absorption depth it can achieve, and the minimum coating thickness at which meaningful performance is obtained. For programme engineers developing custom coating systems or stealth composite structures, access to well-characterised absorbing agent grades optimised for specific frequency bands and application requirements is the foundation of the formulation process.
XRAM-A Series: Multi-Grade Absorbing Agents Across 2 to 18 GHz
The XRAM-A Series consists of four functional radar absorbing powder grades developed for integration into coating formulations, composite matrices, and electromagnetic shielding materials across different frequency band requirements. The XRAM-A012D provides low-frequency absorption in the 2 to 4 GHz band. The XRAM-A011Z covers mid-to-high frequency absorption in the 6 to 18 GHz range. The XRAM-A011G addresses broadband absorption across the 4 to 10 GHz span. The XRAM-A013Z provides supplementary absorption capability within the broadband frequency range. Reflection loss across the series reaches down to -10 dB for the most absorption-intensive grades. Particle size across the series spans 4.5 to 27 micrometres depending on the grade, and bulk density ranges from 0.5 to 2.0 grams per cubic centimetre. The black-gray powder appearance and controlled microstructure provide consistent dispersibility in resin, paint, and composite matrices.
Stealth Coating Formulation Applications
Coating formulators developing custom radar absorbing coatings for programme-specific frequency requirements use the XRAM-A Series as the functional absorbing component dispersed into their selected resin system. Because the particle surface modification process applied during XRAM-A Series production optimises both electromagnetic absorption behaviour and compatibility with common coating resin types, the series integrates into epoxy, polyurethane, and silicone matrix systems without the compatibility limitations that constrain many alternative absorbing agents. The stable batch consistency built into the manufacturing process ensures that coating formulations remain repeatable across production runs, which is a practical requirement for stealth coating programmes committing to multi-batch production volumes.
Composite Structure Integration for Aerospace and Naval Platforms
Stealth composite structures incorporating the XRAM-A Series as an absorbing additive achieve radar cross-section reduction that is integrated into the structural material rather than applied as a surface treatment, which is advantageous for structural members where surface coating adhesion would be compromised by mechanical loads, flexure, or surface preparation constraints. Aerospace fuselage panels, radome structures, and naval composite superstructure sections represent the primary structural integration applications. The corrosion-resistant behaviour of the XRAM-A Series under humidity and salt spray conditions means composite structures incorporating the agent maintain their electromagnetic absorption performance in maritime deployment environments without additional protective treatment of the absorbing agent fraction.
Electromagnetic Shielding and Custom Material Solutions
Beyond stealth platforms, the XRAM-A Series addresses electromagnetic shielding applications in electronic enclosures, microwave test chamber lining materials, and radar absorbing patch structures used in antenna measurement and EMI suppression contexts. The multi-grade frequency coverage across 2 to 18 GHz allows shielding material formulators to address the full frequency range of interest from a single supplier using different grade combinations rather than sourcing agents from multiple supply chains with different surface treatment processes and batch consistency standards. Standard packaging in 1 kg, 5 kg, and 10 kg configurations supports evaluation and production-scale procurement. Custom quantities and formulation consultation are available through Star-Navi's stealth materials sales team at sales@star-navi.net.