Rigid or plasticized thermoplastic, dominant in extruded building profiles and flexible cable jacket. Used in 88 part families across 13 industries.
Marine
11 PART FAMILIES
Acoustic & Engine Room
Engine room insulationCOMMON
A limp mass-loaded vinyl barrier, 1 to 2 lb per square foot, is the layer that actually blocks engine noise; it is bonded between two foam layers so the outer foam decouples it from the bulkhead, and without it the foam alone does little at low frequency
Engine box and hatch linerCOMMON
Mass-loaded vinyl between the foam layers is what makes an engine box liner work at the exhaust note frequencies; a foam-only liner is a marketing part
Deck & Hatch
Rubrail insert and end capDOMINANT
The rubrail insert is flexible PVC and it is chosen on a combination nothing else matches: it takes and holds bright color and a high-gloss or metallized finish, it extrudes cheaply in long continuous lengths, it can be made rigid enough to hold a profile and soft enough to absorb a dock impact, and it can be heat-formed on installation around the bow curve. It is the one part in this report designed to be hit. Its weakness is UV and plasticizer migration: it chalks, it stiffens, and after a decade in the sun it cracks at the bow where it is most visible and most deformed.
Deck Comfort
Non-skid foam deckingCOMMON
PVC synthetic teak plank is the rival deck surface to foam decking: harder, hotter, longer lasting, and glued down with a polyurethane adhesive by a deck fabricator; it holds the yacht and fishing boat market that wants the teak look
Fender and dock bumper foamCOMMON
The inflatable vinyl fender is the recreational fender and holds most of the market; the foam-filled fender competes on the dock and commercial side; listed to show where the foam buy stops
Fuel & Water
Bilge and livewell hoseDOMINANT
Corrugated PVC bilge and livewell discharge hose is the highest-volume hose on the boat by footage and the least specified part in this report. It is chosen on price, flexibility and the ability to run a corrugated section around an obstruction without collapsing. It hardens with age and UV through an open bilge hatch, it splits at the corrugation root where it has been flexed, and it is replaced by owners and yards constantly, which makes it a large aftermarket category that nobody treats as one. A supplier looking for volume with a low qualification barrier should look here first.
Potable water hoseCOMMON
Reinforced PVC is the volume fresh water hose on smaller boats and on non-potable fresh water runs, and it is there on cost and clarity. It is stiff in cold weather, it takes a permanent set in the shape of whatever bend it was stored in, and its plasticizers migrate over time, which is why it hardens and why it is the wrong answer on a potable line. The reason it persists is that the builder buying it is not the person who will drink from it in year eight, which is a structural feature of marine specification worth naming rather than complaining about.
Fuel fill and vent hoseLEGACY
PVC and PVC-blend fill hose is still found on older boats and on portable and auxiliary tank installations, and it is the construction the rules were written to eliminate. It is cheap, it is clear or translucent so the fuel level can be seen, it kinks, it hardens with age and UV, and it permeates at a rate that no current regulation allows on an installed system. It is carried here as legacy because a supplier will encounter it in the aftermarket and should know what it is: a part that a yard is supposed to replace with a rated hose and sometimes does not.
Seating & Upholstery
Helm and bucket seat foamCOMMON
Marine vinyl, a PVC-coated polyester knit with UV, mildew, and cold-crack packages, is the skin on nearly every seat and it decides the foam under it: the vinyl has to be heat-sealed or sewn over a foam that will not wick, will not hydrolyze, and will not stain through
Surface
Hull graphics and stripingDOMINANT
Cast vinyl film is the face of every hull graphic and stripe; cast rather than calendered because it does not shrink back from the edge on a compound-curved hull, and the film choice sets the adhesive and the overlaminate
Teak and synthetic teak deck bondCOMMON
PVC synthetic teak (Flexiteek, PlasDECK, and their kind) has replaced real teak on most production boats that offer a teak look, and the plank material decides the adhesive: a flexible urethane or an epoxy that bonds PVC
Automotive
15 PART FAMILIES
Acoustic
Dash insulatorCOMMON
The mass barrier is a filled EVA or PVC heavy layer at several kilograms per square meter, and it is the part of the insulator that actually blocks engine and road noise through the firewall; see TAXONOMY GAP eva-mass-barrier
Body Shop
Seam sealerDOMINANT
PVC plastisol owns seam sealing because it is cheap, it is pumpable at high solids, it wets an oily e-coated surface, and it cures in an oven the plant is already running for paint. It also stays flexible enough to survive body flex over a decade without cracking the joint open. The weakness is that it is PVC: every OEM with a chlorine reduction target has looked at replacing it, and none has found anything that matches the applied cost.
Sprayable sound deadenerDOMINANT
Sprayable damper replaced cut-and-place bitumen pads for one reason that has nothing to do with acoustics: a robot can apply it, and a person had to place the pad. The PVC-based sprayable systems came first because they share the material handling, the pumps, and the oven with the seam sealer already in the building. Acoustically a pad is often better, which is why a quiet vehicle still has both.
Electrical
Wire harness tapeCOMMON
PVC tape is the volume harness wrap: cheap, conformable, and rated to 105 C, enough for cabin and body trunks; every harness maker in Mexico buys it by the pallet
Busbar insulation tapeLEGACY
PVC tape on low-voltage busbars and 12 V distribution where cost matters and the temperature class allows
Exterior
Rocker moldingLEGACY
Extruded flexible PVC body-side moldings on older programs, gone from most current NA designs
Harness Components
Wire insulation and jacketDOMINANT
PVC is the default automotive wire insulation and the reason is a stack of four advantages no single alternative matches: it is the cheapest compliant insulation per metre, it extrudes at high line speed with a consistent thin wall, it is flexible enough to route by hand without a stiff bundle fighting the assembler, and it passes FMVSS 302 on its own chlorine content without a flame retardant package. Everything proposed to replace it beats it on one axis and loses on at least two.
Harness tapeCOMMON
PVC film tape is the cost floor of harness wrapping and it still ships in volume on bundling-only applications in the temperate zones of the vehicle. Its weaknesses are exactly where the market moved away from it: the plasticiser migrates at temperature, it contributes nothing to noise damping, and its abrasion class is the lowest in the tape framework. It survives because on a plain bundling wrap none of those three matter and it is the cheapest roll on the shelf.
Interior
IP skinLEGACY
Slush PVC skins were the volume answer for decades; still on some trucks and low-cost programs, retreating on fogging and PVC phase-out targets
Low Voltage Harness
Body harnessDOMINANT
PVC is the default insulation on the body harness and the reason is cost, not performance. The bay is temperate, the runs are long, and the wall can be thin, so the cheapest compliant insulation wins on a bill of materials measured in kilometers. PVC is also the most forgiving material to extrude at line speed with a consistent wall, which is an economics argument disguised as a processing one. It loses only where temperature, halogen-free rules, or mass reduction overrule cost.
Instrument panel harnessDOMINANT
PVC insulation on the IP harness for the same reason as the body harness, with one added requirement: FMVSS 302 flammability applies to everything in the occupant compartment, and PVC passes it inherently through its chlorine content without a flame retardant package. That is a quiet but significant cost advantage over polyolefin insulation, which needs an additive package to reach the same result.
Seat harnessDOMINANT
PVC insulation on the seat harness for cost, with one caveat that catches new suppliers: a seat harness is delivered inside a seat assembly, so the seat maker and not the vehicle plant is the customer, and the seat maker's own specification may be tighter than the OEM's on flammability and on abrasion because of the foam and trim it sits against.
Seating Textiles
Seat cover fabricLEGACY
Vinyl coated fabric held the work vehicle, fleet and base trim seating market for decades on cleanability and cost, and it still appears on commercial vans, police packages and the lowest trim levels. It loses on two fronts at once. Plasticizer migration makes it stiffen and crack over time and contributes to windshield fogging, and the interior air quality specifications now written into OEM programs treat it as a problem to be engineered around rather than a material to be chosen. PU synthetic does the same job without either issue, which is why vinyl is in slow structural decline rather than in competition.
Underbody
Cavity wax and underbody coatingCOMMON
PVC underbody coating is the sprayed film over the floor pan and wheel wells, doing the visible half of the same job: abrasion, stone impact, and a black surface that hides everything. It shares material handling and oven with seam sealer, which is why a plant that runs one runs the other, and it carries the same chlorine question.
Chip-resistant coatingCOMMON
On the parts that are not visible, the same job is done by the PVC underbody coating already in the plant, applied thicker up the rocker. It is cheaper and it does not have to look like anything, and the boundary between the two is drawn wherever the rocker molding stops.
Building Products
21 PART FAMILIES
Decking & Rail
Railing systemDOMINANT
Vinyl railing is code-tested as a kit, extrudes from the fence compound base, and matches vinyl decking and fence lines
Deck fascia and riserDOMINANT
Cellular PVC fascia bends to radius and takes paint; it is sold with both PVC and composite deck lines
Decking boardCOMMON
Capped cellular PVC boards (TimberTech AZEK) are lighter, stay cooler, and carry no wood to absorb water, winning the premium tier
Exterior & Decking
Siding and trim adhesiveDOMINANT
Cellular PVC trim (AZEK, Kleer, Versatex) is joined with PVC solvent cement that welds the two boards into one piece; the substrate is the adhesive chemistry and the trim brand sells the cement under its own label
Railing assembly adhesiveCOMMON
Vinyl rail and fence systems join posts, rails, and caps with PVC solvent cement, the same weld chemistry as PVC trim and pipe
Exterior Envelope
Siding panelDOMINANT
Vinyl siding is the lowest installed cost cladding in NA and needs no paint; rigid PVC with TiO2 and impact modifier is the whole formulation
SoffitDOMINANT
Matches the siding compound and color, is vented in the same die, and does not corrode like aluminum in coastal markets
Gutter and downspoutDOMINANT
Sectional vinyl gutter is the only polymer gutter of consequence: snap-fit, no seams to solder, and sold through big-box retail to DIY
Trim board and millworkDOMINANT
Free-foam cellular PVC cuts and nails like wood, takes paint, and never rots; it displaced primed pine trim within a decade
Fence and privacy railDOMINANT
Vinyl fence needs no paint or stain and uses the same rigid PVC compound and extrusion base as siding
Metal Roofing
Formed gutter and downspoutLEGACY
Vinyl gutter is the retail sectional product: snap-together lengths sold to homeowners at big box, immune to corrosion, and unable to survive either a ladder or a hard freeze. It is included here because it is the substitution threat at the bottom of the market and because it shows the boundary of this lens. Where the part can be extruded from plastic instead of formed from coil, the metal supply chain loses the family outright, and gutter is the only place in this report where that substitution has already happened at scale.
Metal Wall Cladding
Metal soffit panelLEGACY
Vinyl soffit took most of the residential new construction market on installed cost, and metal soffit survives on remodeling, on premium work, and where a fire-resistant eave is required. This is the same substitution story as vinyl gutter and it is worth stating twice, because between them soffit and gutter are where the polymer lens has taken volume directly out of the metal lens in residential construction. The metal position holds where appearance, fire, or durability is specified, and it erodes wherever the decision is installed cost alone.
Pipe & Plumbing
DWV pipeDOMINANT
Schedule 40 PVC DWV is cheapest per foot, solvent-welds, and is accepted by every model code; cellular-core PVC cuts weight further
Pipe fittingsDOMINANT
Injection-molded PVC fittings match the pipe chemistry for solvent welding and share the resin supply base
Drainage and storm pipeCOMMON
Solid-wall SDR 35 PVC still owns small-diameter gravity sewer and building drains where a smooth bore and tight joints matter
Water supply pipeCOMMON
C900 PVC dominates municipal water mains and Schedule 40 covers cold-water service; CPVC (TAXONOMY GAP cpvc) extends the chemistry to hot water in the Southeast
Roofing
Single-ply roofing membraneCOMMON
Plasticized PVC membrane welds like TPO and resists grease and chemicals, so it holds restaurants, food plants, and long-warranty specs
Window & Door Assembly
Frame corner jointDOMINANT
Vinyl sash and frame corners are fusion welded: the profile ends are heated and pressed together and no adhesive is consumed. The row is here so the matrix shows where the adhesive market stops; two thirds of residential window units join their corners this way
Windows & Doors
Window frame profileDOMINANT
Lowest cost per linear foot of any weatherable frame material, self-extinguishing, and multi-chamber extrusion delivers U-factor without a thermal break. Rigid PVC is roughly two thirds of NA residential window units
Window glazing beadDOMINANT
Snaps into the same extruded frame system, matches color and weathering, and is cut from the same compound run
Door frame and jambDOMINANT
Cellular PVC jambs, brickmould, and frame bottoms eliminate the rot callback that drove warranty cost on finger-jointed pine
Electronics
3 PART FAMILIES
Cable and Flex
Cable and harness tapeCOMMON
PVC tape remains the cheapest bundling and insulating wrap and is still specified across consumer and industrial builds. Halogen-free requirements in rail, telecom, and some European programs are what displace it, not performance.
Connector and Interface Molding
Strain relief bootCOMMON
Molded and slip-on PVC boots are the cost floor on consumer and internal cable and remain common on power cords. RoHS phthalate limits forced reformulation rather than replacement, and PVC still loses on cold flex and on halogen-free requirements.
Interconnect
Cable assemblyDOMINANT
PVC jacket and insulation dominate internal and consumer cable on cost, flame rating, and ease of extrusion; RoHS phthalate limits have forced reformulation, not replacement.
Heavy Truck & Off-Highway
9 PART FAMILIES
Bus Interior
Bus floor underlaymentCOMMON
A mass barrier under the floor is what stops transmission from the driveline and the wheel wells, and on a transit bus with a rear-mounted engine it is concentrated at the back where the noise is
Cab Acoustic
Dash insulatorCOMMON
A limp mass-loaded vinyl barrier bonded to the absorber is what actually stops transmission, as opposed to absorbing reverberation. Every serious dash insulator in a diesel truck is a barrier-decoupler-absorber sandwich, and the vinyl sheet is the barrier
Cab floor insulatorCOMMON
A mass-loaded vinyl barrier laminated between the absorber and the floor pan is what turns an absorber into an insulator. On a cab with a 15 litre diesel under the floor line, the barrier is doing most of the work
Door panel acousticCOMMON
A mass barrier patch on the door skin is the treatment where the door is a measured noise path, typically on the premium sleeper specs where the cab is sold on interior sound level
Cab Interior
Floor mat and floor coveringLEGACY
Plasticized PVC floor covering on older cabs, retired on odor, cold-crack, and weight
Exterior
Fleet graphics filmDOMINANT
Cast PVC film is the face of every long-term fleet graphic: it conforms over rivets and corrugations and holds color and gloss outdoors longer than calendered film; 3M and Avery Dennison make the film, the ink system, and the overlaminate as a warranted set
Reflective markingCOMMON
Reflective vinyl film for cut lettering and fleet numbers is a calendered or cast PVC film with glass beads or prisms embedded in the face
Off-Highway
Decal and safety labelCOMMON
Cast and calendered vinyl film carries hood stripes, model decals, and dealer graphics on the same machines, applied at the factory
Off-Highway Cab
Operator seat foam (ag and turf)COMMON
Marine-grade vinyl is the cover on nearly every open-station seat, because it is the only cover material that takes sun, rain, fertilizer, and pressure washing and stays serviceable. It is also what traps water against the foam if the drainage design is wrong
RV & Powersports
2 PART FAMILIES
RV Interior
Interior wall panelDOMINANT
Vinyl decorative film laminated over the substrate; cleanable, printable, and the cheapest finished interior surface
RV Structure
Roof panelCOMMON
PVC membranes offer better puncture and chemical resistance than TPO for a small premium
Appliances
5 PART FAMILIES
Common Attachment and Marking
Wire management tapeDOMINANT
PVC is still the volume backing on appliance looms because it is cheap, conformable, abrasion resistant, and inherently flame retardant, which matters inside a cabinet full of live parts. It is also the reason halogen-free requirements arriving from European and Asian parent companies are an active substitution pressure on this family rather than a theoretical one.
Dishwashing
Dish rack and coatingDOMINANT
Plastisol dip coating over welded steel wire is the volume dish rack: a thick, soft PVC film that will not chip a plate and seals the wire against rust. Its failure mode is the reason racks get replaced, because one nicked tine rusts and stains everything above it
Dishwasher rack wire formCOMMON
PVC plastisol is the volume rack coating: thicker, softer, cheaper, dipped and fused. It protects china better than nylon and it is more prone to the classic failure, a nick that lets water under the film and rusts the wire from beneath while the coating still looks intact. A visible rust streak on a five-year-old rack is almost always a PVC coating that was breached years earlier
Refrigeration
Door gasket and carrierDOMINANT
The magnetic door gasket is an extruded flexible PVC profile with a magnet strip inside the bellows. Plasticized PVC is what holds a soft, low-compression-set seal that still wipes clean, welds at the corners, and costs almost nothing per foot
Refrigerator wire shelfCOMMON
PVC plastisol dip coat on freezer baskets and door bins gives a thicker, softer, quieter film than powder that will not scratch glass shelves or chip when a frozen package lands on it. It is dipped and fused rather than sprayed and cured, and the trade is thickness control and a cut-edge that has to be fully encapsulated or it rusts from the inside out
Medical Devices
6 PART FAMILIES
Disposables
IV bagDOMINANT
Plasticized PVC is still the volume IV container: it is clear, it collapses as it empties so no vented set is needed, it radio-frequency welds ports and seams in one operation, and it autoclaves at 121 C. The whole story in this family is the plasticizer. DEHP is being displaced by DEHT, TOTM, and citrate esters under EU MDR phthalate labelling and US health system purchasing pressure, and requalifying a bag on a new plasticizer is a full extractables and leachables exercise
IV administration set tubingDOMINANT
Flexible PVC is the administration set: it is kink resistant, it is optically clear enough to see air in the line, it solvent-bonds to the drip chamber and connectors without a separate weld step, and it survives the roller of a peristaltic pump for a shift. DEHP-free grades are now the default ask, and the tradeoff is that some non-phthalate plasticizers migrate differently and change the pump segment creep behavior
Blood collection bagDOMINANT
The blood bag is the sharpest example in the atlas of a material doing something clinical. DEHP plasticizer migrates into the red cell membrane and stabilizes it, which is a large part of why whole blood has a 42 day shelf life in a DEHP-PVC bag. Removing the phthalate is therefore not a materials substitution, it is a change to the storage claim, and it needs additive-solution reformulation to hold the same dating
Packaging
Sterile barrier trayLEGACY
Rigid PVC and PVC/PVDC webs are still thermoformed for lower-cost trays and for the barrier they give. They are retreating under PVC phase-out purchasing policies and under scrutiny of the chlorinated barrier layers, not under any performance argument
Wound Care and Absorbent
Woven gauze and spongesCOMMON
The blue or grey thread running through a laparotomy sponge is a barium sulphate loaded polymer strand, usually flexible PVC or a filled polyester, and it exists so that a sponge left inside a patient shows up on an intraoperative X-ray. It is a tiny amount of material carrying an enormous amount of risk: a retained surgical item is a never event, it is reportable, and it is one of the most expensive single failures in a hospital. The radiopaque element is manufactured, inspected and documented to a standard entirely out of proportion to its cost, and a supplier who treats it as a decorative thread will fail an audit.
Adhesive bandage backingLEGACY
Flexible PVC is the classic plastic strip bandage backing and it is still in volume production, because it is inexpensive, it conforms well and it holds an adhesive coating without a primer. It is under pressure from two directions at once: plasticizer scrutiny, particularly on anything marketed for paediatric use, and the general institutional move away from PVC in patient contact products. It is a category with a long tail rather than a future.
Office & Contract Furniture
6 PART FAMILIES
Acoustic
Phone booth and pod linerCOMMON
A loaded vinyl barrier sheet at about one pound per square foot is the mass layer in a booth wall, and it is the only material in the stack that actually blocks sound rather than absorbing it; a booth with no barrier layer measures as a decorated alcove
Healthcare Surfaces
Healthcare coated upholsteryDOMINANT
Coated vinyl is the healthcare upholstery of record because it is the only surface cheap enough to specify across a building that survives the actual cleaning protocol. It is a knit or woven substrate with a plasticised PVC face, and the whole engineering problem is in the face: bleach at the concentrations an infection control policy specifies, and quaternary ammonium disinfectants, attack the plasticiser and the topcoat, and the failure is cracking and stiffening at the seat front within two years rather than abrasion
Bleach cleanable textileDOMINANT
The bleach cleanable specification is written by disinfectant compatibility list rather than by appearance, and coated vinyl is what most lists start with. The number that matters is the bleach concentration and the dwell time the warranty survives, typically stated as a 1 to 10 sodium hypochlorite solution for a stated exposure, and it is worth reading the footnotes on any warranty that states one
Antimicrobial fabricCOMMON
Treated coated vinyl, which is where most of the real healthcare volume sits because the same product is already specified for cleanability; the antimicrobial is an added feature on a surface bought for a different reason, and the same EPA constraint applies to what may be said about it
Panel and Screen
Panel edge trimDOMINANT
Extruded PVC edge trim finishes the wrapped panel, holds the fabric edge down and takes the impact a cart delivers to a corner. It is cheap, it extrudes to any profile, it accepts colour, and it is the part of the panel most often criticised on a sustainability scorecard because the rest of the panel has been decarbonised around it
Surface
Worksurface soft edgeLEGACY
Extruded PVC edge band, the historic standard, retreating as specifiers write chlorine-free and Red List requirements into projects rather than for any performance reason
HVAC & Water Heating
5 PART FAMILIES
Air Handling
Condensate trap and pumpDOMINANT
The trap breaks the negative pressure at the drain so the blower cannot pull the seal dry, and it has to hold a solvent-welded joint to the drain line. PVC is what the drain line already is, so the trap is PVC for joint compatibility before any other reason
Heat Exchange
Condensate drain lineDOMINANT
Condensate drain is three quarters inch schedule 40 PVC on essentially every residential system in NA, run by the installing contractor from truck stock and solvent welded. It is the most commoditized polymer in this industry and the one where brand is least relevant, which is exactly why Charlotte Pipe and the other extruders compete on service level and stocking rather than on specification
Flue and vent pipeCOMMON
Schedule 40 PVC and CPVC venting is what most condensing furnaces and tankless water heaters in NA are actually vented with, because it is cheap, universally stocked, and solvent welded by a plumber who already owns the cement. It is also the contested one: PVC is not a listed vent material in its own right, it is permitted by the appliance listing, and its temperature margin at the flue collar is thin enough that several manufacturers have moved to polypropylene at the first two feet
Plumbing & Hydronic
CPVC pressure pipeDOMINANT
CPVC is post-chlorinated PVC, and the extra chlorine raises the heat distortion temperature enough to carry 180 F water at 100 psi, which ordinary PVC cannot. That single property created the FlowGuard category and made a rigid, solvent-welded system a legitimate hot water competitor to copper. It is rigid where PEX is flexible, it is joined with cement rather than a tool, and it is brittle where PEX is forgiving, and which of those matters is decided by the installer and by what the local code adopted
Pipe fitting and couplingDOMINANT
By unit count the PVC and CPVC fitting is the volume part of the whole plumbing system: every elbow, tee, coupling, and reducer in a solvent-welded system, molded by the hundreds of millions and sold through wholesale as a commodity where the buying decision is stocking and price, not brand
Packaging
3 PART FAMILIES
Flexible
Shrink film and bundlingLEGACY
PVC shrink was the retail overwrap standard and holds a shrinking share on price and low shrink temperature. Chlorine contamination in recycling streams and state procurement policy are what is moving it out.
Labeling and Decoration
Shrink sleeve seamLEGACY
PVC sleeve film was the original high-shrink material and it still holds tamper evident bands and the cost-driven end of the sleeve market. It is being designed out for two reasons at once: chlorine in a PET reclaim stream degrades the resin and discolors the flake, and PVC is named directly in several state EPR and packaging laws. A converter still running PVC sleeve is running it on borrowed time and knows it.
Rigid Beverage
Bottle label filmLEGACY
PVC shrink sleeve is the legacy high-shrink film. It is being designed out because chlorine in a PET bale degrades the recycled resin and because state truth-in-labeling law makes a package that is not actually recyclable a liability rather than a claim.
Lawn, Garden & Outdoor Power
1 PART FAMILY
Garden & Storage
Storage shed panelLEGACY
Extruded and coextruded rigid PVC panel and trim on the older vinyl shed and outdoor cabinet designs, displaced by blow molded HDPE on impact resistance and on freight
Energy & Storage
1 PART FAMILY
Pack & Enclosure
ConduitDOMINANT
Rigid PVC conduit owns DC collection and AC runs on cost, on the fact that it is glued rather than threaded, and on a flame and smoke rating written into the electrical code rather than argued case by case.
Who supplies it
Companies mapped at Tier 2 or Tier 3 selling resins into the 13 industries where PVC is used, largest first. At most 12 are listed. Tier and industry placement for each company is in the report for that market.