Data Centre Gaskets & Seals
Sealing for data centre cooling loops, fire-rated cable penetrations, and IP-rated enclosures.
Australian data centres face a unique combination of sealing challenges: cooling system integrity, fire-rated cable penetration barriers, IP-rated cabinet gaskets, and aisle containment seals. We supply the elastomeric, sponge, and conductive materials that support your facility's uptime targets — Tier III (concurrently maintainable) and Tier IV (fault tolerant).
Where Sealing Fails, Uptime Falls
Cooling System Leaks
Glycol and refrigerant leaks at pipe flanges and CRAC (Computer Room Air Conditioner) unit panels degrade cooling capacity and risk equipment damage.
Bypass Airflow
Gaps in aisle containment, cable cutouts, and raised-floor tiles allow hot air recirculation, raising inlet temperatures.
Our Approach
Fire-rated foam seals and custom-cut blanking panelsFire Compartmentation
Cable penetrations and service risers break fire-rated barriers. A single unsealed penetration can void the compartment rating.
Our Approach
UL 94 V-0 intumescent and silicone sponge sealsDust and Moisture Ingress
Outdoor cooling units and edge micro-data centres face rain, condensation, and airborne particulate that corrode electronics.
Our Approach
IP67-rated closed-cell EPDM cabinet gasketsMatching Seals to Coolant Chemistry
Each cooling loop uses a different fluid (water-glycol, dielectric coolant, or refrigerant gas). The wrong elastomer swells, hardens, or cracks within months. We match gasket compounds to the specific coolant in each circuit, backed by manufacturer immersion test data.
Coolant–Material Matrix
Sealing the Fire Compartment
Every server hall, plant room, and cable riser needs a fire-rated barrier between it and adjacent spaces. NFPA 75 and the Building Code of Australia both mandate this. Every cable penetration, pipe transit, and service opening in that barrier needs a seal that holds the compartment's rating, typically 60 or 120 minutes.
Where clean-agent suppression (Novec 1230 / FK-5-1-12, FM-200 / HFC-227ea, or Inergen / IG-541) is installed, gasket selection becomes critical for any seal exposed to discharge. EPDM and neoprene are compatible with all three agents. FKM (Viton) is NOT compatible with FK-5-1-12 and should not be specified in Novec 1230 zones. The fluoroketone agent has chemical affinity with fluoroelastomers, which causes excessive swelling and seal failure. The same compatibility constraint applies to BESS rooms; see the renewable energy page for battery-storage clean-agent guidance.
UL 94 Flammability Ratings
No flaming drips. Required for aisle containment and cable penetration seals in NFPA 75 zones.
Acceptable for non-critical enclosure gaskets and vibration mounts outside fire compartment boundaries.
Lowest UL 94 rating. Not suitable for fire-rated applications; general-purpose equipment pads only.
Data Centre Sealing Materials
Not every elastomer suits a server room. Glycol degrades nitrile. Silicone outgasses onto optics. PVC foam crumbles after a few thousand door cycles. We stock these materials specifically for data centre applications, each selected for the failure mode it prevents.
Closed-Cell EPDM
UV-stable sponge for cabinet door seals and outdoor cooling units. Maintains compression set resistance through extended service cycles.
V-0 Silicone Sponge
UL 94 V-0 rated flame-retardant sponge for aisle containment panels and cable penetration seals. Self-extinguishing within 10 seconds.
Conductive Elastomers
Silver-aluminium silicone, per MIL-DTL-83528J (the US military EMI gasket specification). QPL (Qualified Products List)-compliant compounds use silver or silver-plated fills; nickel-graphite variants are available as a cost-effective alternative where QPL compliance isn't required. Shielding effectiveness typically exceeds 80 dB at 10 GHz when correctly compressed.
Neoprene
General-purpose closed-cell neoprene for equipment mounting pads and anti-vibration gaskets. Oil and ozone resistant.
Polyurethane Foam
Open-cell gaskets for sealing around filter frames in air-handling units. Compresses evenly to eliminate bypass air around MERV-rated filter banks.
Low-Outgassing Silicone
Meets ASTM E595 outgassing limits (TML ≤ 1%, CVCM ≤ 0.1%) for sensitive optical and electronic assemblies. Prevents fogging on lenses and contacts.
HNBR / NBR
Refrigerant-compatible compounds for R-134a, R-410A, R-32, and emerging low-GWP alternatives. Suited to compressor connections and refrigerant piping flanges.
Generator-Set Fuel Sealing
Standby diesel generation (typically N+1 / 2N for Tier III–IV) needs fuel-line gaskets matched to the actual blend: NBR for ULSD diesel; HNBR or FKM for B5–B20 biodiesel, since standard NBR softens above B10. AS 3814 exhaust gasket service for the generator stack.
PEEK, Acetal, and Nylon isolators for cable trays and busbar penetrations sit in our Engineering Plastics category. Mica thermal-interface sheets and EMI/RFI shielding compounds sit under Electrical & Thermal Insulation.
Industry Standards We Work to
Data centre operators increasingly specify material and fire certifications as part of fitout contracts. These are the standards we see referenced most often in Australian data centre procurement.
Thermal Guidelines for Data Processing Environments
Defines A1–A4 temperature and humidity envelopes for IT equipment.
Data Centre Tier Standard
Tier classification for redundancy and uptime, covering Tier III (concurrently maintainable) and Tier IV (fault tolerant). The decimal availability percentages widely associated with each tier are derived metrics, not Uptime-certified figures.
Telecommunications Infrastructure Standard for Data Centres
Covers cable pathways, environmental controls, and fire protection requirements.
Fire Protection of IT Equipment
Mandates fire-rated barriers, smoke detection, and cable penetration sealing in server rooms.
Ingress Protection Rating (IP Code)
Defines IP54–IP68 test methods for dust and water protection of enclosures.
Tests for Flammability of Plastic Materials
Classifies materials from HB to V-0 for self-extinguishing behaviour.
Fire Protection of Telecommunications Facilities
Fire protection for telecom and data centre electrical equipment rooms, including cable pathway sealing requirements.
Energy Standard for Data Centres
Minimum energy efficiency requirements that drive sealed containment to reduce mixing losses.
Data Centre Facilities and Infrastructures
European series increasingly adopted in Australian hyperscale builds. Covers environmental control and physical security.
Refrigerating Systems — Safety and Environmental Requirements
Governs refrigerant circuit integrity, leak detection, and material compatibility for mechanical cooling plant.
Fire Tests on Building Materials — Fire-Resistance Tests
Rates fire-resistance periods for barriers and penetration seals; referenced for fire compartment gasket testing.
Components for the Protection of Openings in Fire-Resistant Separating Elements — Service Penetrations and Control Joints
Fire-stopping system requirements for cable and pipe penetrations through fire-rated walls and floors.
Data Centre Sealing Products
Soft-Cut Gaskets
CNAF, Rubber, PTFE, Graphite, and more
Explore ProductO-Rings & Cord
Standard & Custom Elastomer O-Rings and Cord Stock
Explore ProductExtruded Profiles
Door Seals, Edge Trim & Custom Extrusions
Explore ProductFire Protection
Fireproof Wraps & Barriers
Explore ProductIndustrial Tapes
PTFE, Insulation & Speciality Tapes
Explore ProductMoulded Parts
Custom Moulded Rubber Components
Explore ProductExplore Further
Explore Further
Sealing Your Data Centre?
From aisle containment to IP-rated edge enclosures, we cut gaskets and seals to your drawings.
- UL 94 V-0 fire-rated materials
- IP67/IP68 environmental seals
- EMI/RFI shielding gaskets
- Fast-track supply for planned outages
Disclaimer
This page is provided for general engineering reference only and does not constitute professional advice, specification, or guarantee of performance. Actual results depend on specific application conditions. Universal Gaskets Pty Ltd accepts no responsibility or liability for decisions made based on this information. For full terms, see our Terms & Conditions.
Temperature ranges, chemical resistance ratings, and mechanical properties cited on this page are typical values for standard grades. Actual performance varies with compound formulation, filler package, and service conditions — contact us to confirm suitability for your specific application.