Materials and Finishes for Aircraft Interiors
Expert-defined terms from the Advanced Certificate in Aircraft Interior Concepts (Switzerland) course at London School of Planning and Management. Free to read, free to share, paired with a professional course.
Acrylic Resin – thermoset polymer – A clear, hard coating used on… #
Example: Overhead bin liners. Challenges include susceptibility to cracking under high temperature cycles.
Adhesive Bonding – structural adhesive – Technique for joining com… #
Used for cabin wall laminates. Must meet fire‑rating standards and maintain bond strength after vibration.
Aeronautical Standard 22 – CS‑22 – European regulation governing a… #
Sets limits for flammability, smoke, and toxicity. Designers reference it when selecting fabrics and plastics.
Aluminum Honeycomb – core material – Lightweight core used in seat… #
Provides stiffness while allowing thin outer skins. Requires protective coating to prevent corrosion in humid cabins.
Aluminium Oxide – abrasive – Used in surface preparation of metal… #
Ensures proper adhesion of primers. Over‑abrasion can damage thin‑gauge panels.
Anti‑Static Coating – ESD treatment – Applied to polymeric tray ta… #
Important for electronic equipment safety. Must retain durability after repeated cleaning cycles.
Anti‑Microbial Finish – biocidal additive – Integrated into seat f… #
Enhances passenger hygiene. Effectiveness can diminish after extensive wear and laundering.
Aramid Fiber – Kevlar® – High‑strength, flame‑resistant fiber used… #
Provides impact protection. Cost and processing complexity are limiting factors.
Back‑lit Panels – LED illuminated – Transparent or translucent lam… #
Requires diffusion layers to avoid glare. Heat management is critical to prevent discoloration.
Ballistic‑Grade Composite – reinforced carbon fiber – Used in secu… #
Must meet impact resistance standards while staying lightweight.
Bonding Primer – surface activator – Applied to metal or composite… #
Improves wetting and long‑term durability. Incompatible primers can cause delamination.
Carbon Fiber Reinforced Plastic (CFRP) – high‑modulus composite –… #
Offers superior stiffness‑to‑weight ratio. Requires careful handling to avoid fiber fraying.
Carbon Nanotube Coating – conductive nanomaterial – Provides elect… #
Adds minimal weight. Manufacturing scalability remains a challenge.
Ceiling Tile – acoustic absorber – Lightweight mineral‑fiber panel… #
Must be fire‑rated and moisture‑resistant. Installation must allow easy replacement for maintenance.
Charpy Impact Test – material toughness assessment – Determines re… #
Required for certification of seat components. Low‑temperature brittleness can cause failures.
Chromic Acid Anodizing – surface finish – Provides corrosion resis… #
Must be sealed to prevent electrolyte leakage. Environmental regulations limit its use.
Composite Over‑wrap – protective sleeve – Applied to high‑traffic… #
Extends service life and offers design flexibility. Adhesion must survive cyclic cleaning.
Continuous Fiber Reinforcement – unidirectional layup – Used in lo… #
Requires precise molding to avoid fiber waviness.
Corrosion‑Resistant Coating – epoxy primer – Applied to metal brac… #
Prevents rust that can compromise structural integrity. Must be compatible with fire‑retardant paints.
Cosmetic Finish – surface aesthetic – Final layer of paint or lami… #
Must meet durability standards for abrasion and chemical exposure.
Crepe Paper Insulation – thermal barrier – Lightweight insulation… #
Provides acoustic damping. Requires fire‑rating compliance.
Cross‑Linking Agent – curing catalyst – Added to polymer resins to… #
Over‑cross‑linking can reduce flexibility.
Denier – fiber thickness measurement – Indicates the weight of tex… #
Higher denier fabrics are more durable but heavier. Selection balances wear resistance and weight.
Durability Test – accelerated aging – Simulates years of cabin use… #
Results guide material selection for long‑life interiors.
Eco‑Friendly Composite – bio‑based resin – Uses plant‑derived poly… #
Must meet fire‑safety and mechanical performance criteria.
Electro‑static Discharge (ESD) Safe Flooring – anti‑static carpet … #
Requires low‑resistance pathways to ground. Must retain appearance after cleaning.
Epoxy Resin – thermosetting binder – Commonly used in interior lam… #
Cured at moderate temperatures. Sensitive to moisture during cure.
Fire‑Retardant (FR) Coating – intumescent paint – Expands when exp… #
Applied to cabin walls and floor panels. Must be tested for smoke density and toxicity.
Flame‑Spread Index (FSI) – flammability metric – Quantifies how qu… #
Values below 25 are required for most aircraft interiors. Influences material selection for seat covers.
Fluoropolymer Finish – PTFE coating – Provides low friction and ch… #
Excellent for cleaning but can be costly.
Foam Cushioning – polyurethane foam – Used in seat padding for com… #
Must meet low smoke density requirements. Aging can cause cell collapse and hardening.
Functional Gradient Material (FGM) – property‑varying composite –… #
Manufacturing complexity is a barrier.
Glass‑Fiber Reinforced Plastic (GFRP) – cost‑effective composite –… #
Provides good strength and fire performance when combined with FR resins. Surface finish must be sanded for paint adhesion.
Granular Fillers – talc, mica – Added to polymer matrices to impro… #
Excess filler can reduce impact toughness.
Ground‑Fault Protection – electrical safety – Requires conductive… #
Integrated into design of galley equipment.
Hard‑Coat Paint – high‑solids coating – Provides a durable, scratc… #
Requires precise thickness control to avoid weight penalties.
Heat‑Shrink Laminate – thermoformable sheet – Applied over curved… #
Must be compatible with underlying composite to avoid delamination.
High‑Temperature Resistant Polymer – PEEK – Used for components ne… #
Retains mechanical properties at temperatures above 250 °C. Expensive compared to standard polymers.
Hybrid Composite – mixed fiber architecture – Combines carbon and… #
Hybrid Composite – mixed fiber architecture – Combines carbon and glass fibers in a single layup to balance cost, strength, and impact resistance for interior panels.
Hydrophobic Surface Treatment – nano‑silica coating – Repels water… #
Must maintain durability after repeated cleaning with strong detergents.
In‑Flight Entertainment (IFE) Enclosure – EMI shielding – Composit… #
Must meet weight and fire‑safety constraints.
Intumescent Sealant – fire‑stop material – Expands in a fire to se… #
Provides continuity of fire barriers. Requires careful application to avoid excess bulging.
Knitted Fabric – textile structure – Used for seat upholstery wher… #
Knitting pattern influences tear resistance. Must be treated for flame retardancy.
Laminate Flooring – HPL (high‑pressure laminate) – Provides a hard… #
Requires sealed joints to prevent moisture ingress.
Light‑Weighting – mass reduction strategy – Applies to interior co… #
Enables fuel savings but demands rigorous testing for durability.
Low‑Smoke Zero‑Halogen (LSZH) Material – cable jacket – Used for i… #
Must meet mechanical flexibility and fire‑performance standards.
Machinable Foam – foam block – Easily shaped to create seat armres… #
Offers good acoustic damping. Must be fire‑rated and resistant to oil spills.
Mandrel‑Cured Composite – internal curing technique – Produces hol… #
Requires precise mandrel removal.
Material Data Sheet (MDS) – technical specification – Provides det… #
Essential for certification documentation.
Micro‑perforated Panel – acoustic diffuser – Small holes allow sou… #
Used in cabin walls to improve speech intelligibility. Must be fire‑rated.
Moisture‑Barrier Film – polyethylene liner – Placed behind cabin w… #
Must be compatible with adhesive systems.
Non‑Woven Fabric – bonded fiber mat – Used in insulation blankets… #
Offers isotropic properties and easy cutting. Needs fire‑treatment for aviation use.
Noise‑Reduction Coating – viscoelastic paint – Applied to interior… #
Must retain adhesion after temperature cycling.
Orthogonal Layup – 0°/90° fiber orientation – Provides balanced st… #
Requires precise tool design for accurate fiber placement.
Outgassing – volatile emissions – Release of gases from interior m… #
Low‑outgassing selections are critical for visibility and cabin air quality.
PEI (Polyetherimide) – high‑performance polymer – Utilized for sea… #
Offers good impact resistance.
PEKK (Polyetherketoneketone) – advanced thermoplastic – Used in hi… #
Provides excellent chemical resistance but is costly.
PEM (Polyethylene‑Methyl Acrylate) Foam – lightweight cushion – Em… #
Must be flame‑treated to meet FSI limits.
Polycarbonate (PC) Sheet – transparent interior panel – Used for w… #
Offers high impact strength and optical clarity. Prone to scratching; requires hard coat.
Polyethylene Terephthalate (PET) Film – decorative laminate – Prov… #
Can be printed with custom graphics. Must be fire‑rated and low‑smoke.
Polyimide (PI) Tape – high‑temperature adhesive – Secures wiring h… #
Retains adhesion up to 300 °C. Requires precise application to avoid excess bulk.
Polymer Matrix Composite – resin‑reinforced material – General ter… #
Offers design flexibility for complex shapes.
Polymer Foam Bonding – adhesive system – Specialized adhesives tha… #
Must be compatible with fire‑retardant requirements.
Polypropylene (PP) Trim – impact‑resistant plastic – Used for seat… #
Lightweight and easily molded. Needs flame‑retardant additives to meet certification.
Polyurethane (PU) Coating – flexible finish – Applied to flexible… #
Provides abrasion resistance and chemical resistance. Curing must be controlled to avoid bubbles.
Polyvinyl Chloride (PVC) Leatherette – synthetic upholstery – Mimi… #
Requires halogen‑free formulation for LSZH compliance.
Porous Acoustic Tile – open‑cell material – Installed on cabin cei… #
Must be sealed at edges to prevent moisture ingress and maintain fire rating.
Powder Coating – electrostatic finish – Applied to metal interior… #
Provides excellent corrosion resistance. Requires curing ovens that fit aircraft production lines.
Prepreg Layup – pre‑impregnated fabric – Used for high‑quality int… #
Allows precise fiber volume control. Requires refrigerated storage and controlled cure cycles.
Pressure‑Sensitive Adhesive (PSA) – self‑adhesive film – Used for… #
Must be low‑outgassing and removable without residue.
Protective Overlay – wear‑resistant film – Applied to high‑traffic… #
Transparent, allowing original color to show. Must be compatible with cleaning agents.
Radiation‑Cured Coating – UV‑curable paint – Cured quickly with ul… #
Requires low‑VOC formulations for cabin air quality.
Reinforced Thermoplastic – glass‑filled nylon – Used for structura… #
Can be machined post‑mold.
Resin Transfer Molding (RTM) – closed‑mold process – Produces comp… #
Enables integration of inserts and hardware. Requires careful venting to avoid voids.
Retrofit Kit – upgrade package – Provides new material finishes fo… #
Must be compatible with existing structures and certification.
Ribbed Foam – structured cushion – Offers improved support in seat… #
Ribbed Foam – structured cushion – Offers improved support in seat cushions while reducing material usage.
Rohacell Foam – thermoset polymer foam – Lightweight core for inte… #
Machinable for complex shapes.
Roll‑to‑Roll Printing – continuous graphics – Technique for applyi… #
Enables rapid production of custom livery. Ink must be low‑smoke and UV‑stable.
Rubberized Edge Seal – flexible gasket – Provides a watertight sea… #
Must retain elasticity over temperature extremes.
Safety‑Release Fastener quick‑detach hardware – Used on emergency… #
Must be corrosion‑resistant and fire‑rated.
Self‑Healing Coating – micro‑capsule technology – Releases polymer… #
Still experimental for aviation interiors due to certification hurdles.
Shear‑Lag Reinforcement – stiffener ribs – Integrated into composi… #
Improves fatigue life.
Silicone Elastomer – heat‑resistant seal – Used for gaskets around… #
Retains elasticity after repeated heating cycles.
Siloxane‑Based Paint – hydrophobic coating – Provides water repell… #
Must be compatible with fire‑retardant undercoats.
Skin‑Bonded Composite – single‑skin panel – Eliminates core materi… #
Demands precise layup to avoid warping.
Soft‑Touch Finish – rubberized coating – Applied to armrests and t… #
Provides tactile feel while adding grip. Must meet abrasion resistance criteria.
Spacer Fabric – structural textile – Placed between composite laye… #
Must be fire‑treated.
Spray‑On Foaming – in‑situ insulation – Expands within cavity wall… #
Requires proper venting to avoid pressure build‑up.
Stain‑Resistant Treatment – nanoparticle coating – Applied to fabr… #
Must retain breathability and fire performance.
Structural Adhesive – high‑strength glue – Bonds interior composit… #
Must survive vibration, temperature swings, and fire exposure.
Thermal Barrier Paint – heat‑reflective coating – Applied to inter… #
Reduces heat transfer into cabin.
Thermoforming – heat‑shaping process – Used to shape polymer sheet… #
Enables complex curvature with minimal tooling.
Thermoplastic Elastomer (TPE) – flexible polymer – Used for interi… #
Provides rubber‑like feel with easier recycling than traditional rubber.
Thin‑Film Solar Cells – energy‑harvesting laminate – Integrated in… #
Must meet transparency and fire‑safety standards.
Transparent Polycarbonate (PC) Lens – crew visor – Provides impact… #
Must be anti‑scratch and meet optical clarity requirements.
UV‑Stabilized Paint – sun‑resistant coating – Prevents fading of c… #
Must retain low‑smoke properties.
Vacuum‑Bagging – consolidation technique – Removes air from compos… #
Requires careful pressure control.
Vapor‑Barrier Membrane – impermeable film – Installed under interi… #
Must be compatible with adhesives.
Vibration‑Damping Pad – rubber isolator – Placed between cabin equ… #
Must retain performance over temperature range.
Viscoelastic Foam – energy‑absorbing material – Used in seat cushi… #
Must be fire‑treated to meet flammability standards.
Water‑Based Paint – low‑VOC coating – Preferred for interior cabin… #
Must be formulated to achieve required hardness and fire performance.
Woven Carbon Fabric – reinforcement material – Provides high tensi… #
Requires careful handling to avoid fraying and maintain fiber alignment.
Woven Glass Fabric – reinforcement material – More cost‑effective… #
Offers good impact resistance when combined with FR resin.
Zero‑Halogen Cable – LSZH wiring – Reduces toxic halogen gases in… #
Must meet mechanical flexibility and flame‑spread requirements for cabin installations.