Passive Fire Suppression Coating
A passive fire suppression coating builds fire protection straight into a material's surface — no power, no sensors, no human action. {{ shop.name }} makes this possible with FXN-M200 microcapsules, a fire-suppression additive that manufacturers and formulators blend into coatings, paints, resins, adhesives, and sealants so the finished surface can stop a fire on its own.
What Is a Passive Fire Suppression Coating?
"Passive" means the protection is always on and reacts by itself, without electricity, wiring, or a person to trigger it. A passive fire suppression coating carries a fire-stopping agent inside the coating layer. Under normal conditions it behaves like any ordinary finish. But if the surface overheats or a fire starts, the coating releases its agent right at the hot spot and suppresses the fire before it spreads.
This is different from a fire-retardant coating, which only resists ignition and slows flame spread. A suppression coating goes a step further — it actively puts the fire out at the source. You can read more on the science behind it on our fire suppression technology page.
How FireXNull Makes It Work
The technology is built on microencapsulation. Each microscopic capsule holds a sealed dose of FK-5-1-12 clean agent inside a heat-responsive shell. Mixed into a coating during formulation, thousands of these capsules become part of the cured surface. They stay inactive at normal temperatures and rupture the instant heat crosses their trigger point — releasing the agent directly at the point of ignition.
Because the protection lives inside the material itself, there are no sensors, no wiring, no pressure vessels, and nothing to switch on. Protection is continuous and automatic for the life of the coating. The FK-5-1-12 agent is a clean agent — electrically non-conductive and residue-free — which makes it well suited to sensitive electrical and electronic surfaces.
FXN-M200 Microcapsules: The Coating Additive
FXN-M200 Microcapsules
A fire-suppression additive for manufacturers, formulators, chemical distributors, and R&D teams. Blend it into compatible coatings, paints, polymers, resins, adhesives, sealants, composites, and OEM material systems to build fire protection in at the material level.
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{%- endif -%} Learn About FXN MicrocapsulesStandard PPE — gloves and a dust mask — is recommended when mixing the microcapsules into powdered or sprayed materials, and formulators should follow the product SDS for handling and compatibility. FireXNull offers the M200 for evaluation, so R&D teams can test integration in their own material systems.
Where a Suppression Coating Adds Protection
- Electrical components and enclosures — coatings on panels, housings, and cabinets that gain built-in fire defense.
- Data centers — protective finishes on server racks and enclosures for sensitive electronics.
- Electric vehicles — coatings and materials around wiring and battery systems.
- Industrial equipment — machinery, wire connections, and high-risk surfaces in factories and power plants.
- Composites and OEM materials — fire protection formulated into the material during production.
Prefer a Ready-Made Format?
Not every project wants to formulate its own coating. The same microcapsule technology also comes in three finished products you can apply directly to electrical enclosures — no mixing, no formulation.
FXN Rope (R100)
Flexible suppression cord for larger cabinets, cable runs, and enclosed equipment.
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View FXN RopeFXN Tape (T25)
Wraps directly around wire connections, terminals, and junctions where faults start.
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View FXN TapeFXN Sticker (SA4)
Cuttable panel that mounts inside control panels and small enclosures, sized to the box.
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View FXN StickerNot sure which approach fits your project? Our applications overview groups the options by environment, and the FXN Microcapsules page covers material-level integration in more detail.
Why Choose a Passive Suppression Coating
- Always on — protection is embedded in the material and never needs switching on.
- No power or wiring — nothing to install, integrate, or maintain.
- Residue-free — the clean agent is non-conductive and leaves no mess, ideal for electronics.
- Source-level response — the agent activates exactly where the heat is.
- Flexible integration — works across coatings, paints, resins, adhesives, sealants, and composites.
Build Fire Protection Into Your Material
Formulating a coating, resin, or composite? Talk to FireXNull about evaluating FXN-M200 microcapsules for your material system.
Contact FireXNullFireXNull products are passive, supplemental fire-suppression solutions designed to mitigate early-stage fires at their source. They are not a substitute for code-required building fire protection, sprinklers, or life-safety systems. Microcapsule integration performance depends on the host material, formulation, and proper use within specified conditions; formulators should validate compatibility and follow the applicable SDS. FireXNull does not guarantee prevention of all fire incidents or resulting damage.