Unlaminated Plastics Film and Sheet (except Packaging) Manufacturing — U.S. Industry Primer

NAICS 2022 code 326113

1. Overview

This industry makes flat plastic film and single-layer ("unlaminated") plastic sheet for uses other than packaging: greenhouse and mulch films for farms, pond and landfill liners (geomembranes), construction vapor barriers, window and surface-protection films, medical drapes, and industrial sheet stock. It is a converting business — plants buy plastic resin pellets (polyethylene, PVC, polypropylene, polyester) and run them through extruders that melt and stretch the polymer into rolls of film or sheet [3].

Why an investor should care: this is a small, fragmented, capital-intensive slice of the U.S. plastics economy — about $17.0 billion in shipments across roughly 320 firms in 2022 [2]. It sits downstream of oil-and-gas-linked resin prices and upstream of agriculture, construction, healthcare and electronics. That makes it a cyclical, spread-driven manufacturing business rather than a growth story, but one with pockets of durable specialty demand (geomembranes, display films) that command better margins.

Ways in: there is no pure-play U.S. public company here. Public exposure comes as a minor segment inside diversified names (see Section 4). The bulk of the industry is privately held — family-owned extruders, private-equity roll-ups, and divisions of larger chemical and packaging groups. For most investors the realistic routes are a small allocation via a diversified materials name, or direct private ownership/acquisition of an extrusion business.

2. What it is and how it is structured

In scope: establishments that convert resin into non-packaging plastic film (thin, flexible) and unlaminated sheet (thicker, single-layer). Typical products: polyethylene, polypropylene, polyester, vinyl (PVC), acrylic and cellulosic films and sheet; agricultural film; geomembrane liners; pool and pond liners; surface-protection and window films; and plain plastic sheet for thermoforming and fabrication [3][4].

What it explicitly excludes — this is the important part, because the name is easy to misread:

• Packaging film and sheet, including laminated packaging → NAICS 326112 (Plastics Packaging Film and Sheet). This is the larger sibling code; stretch wrap, shrink film and bag stock live there.
• Plastic bags and pouches → NAICS 326111.
• Laminated (multi-layer bonded) plate, sheet and shapes for non-packaging → NAICS 326130.
• Plastic bottles → 326160; foam products → 326140/326150; all other plastics products (profiles, pipe, custom parts) → 326199.
• The resin itself (the pellets fed into these plants) → NAICS 325211, Plastics Material and Resin Manufacturing.

Production process. Resin pellets and additives are blended, heated and pushed by a screw through either a flat die (cast film, sheet extrusion) or a circular blown-film die. The output is cooled, gauged, trimmed and wound or cut into sheet. Producers may coextrude different resin layers, orient the film, corona-treat or otherwise modify its surface, emboss it, or anneal it. Plants normally run continuously or for long campaigns because startup scrap, color and resin changes, die cleaning and gauge stabilization are costly [5][6].

Ownership mix: a long tail of small and mid-size independent extruders, plus divisions of chemical majors (specialty films) and private-equity-backed platforms. The industry averages about 82 employees per establishment (34,245 employees across 418 establishments) and roughly $53 million of shipments per firm [1][2] — small-factory economics, not heavy-industry scale.

3. How big it is

U.S. federal figures for NAICS 326113:

Concentration is low. The top four firms make about 26.6% of industry receipts, the top eight 37.9%, the top 20 59.2%, and the top 50 82.5%; the Herfindahl-Hirschman Index is 294.7 — well below the 1,500 threshold the antitrust agencies treat as "unconcentrated" [2]. In plain terms: no dominant player, a crowded middle, and a very long tail of small extruders.

Undercount and coverage caveats. These are establishment-level statistics for U.S. plants only. Two things they miss. First, they exclude imports, which are material: the U.S. buys substantial non-packaging film and sheet from Canada, China and Mexico, so domestic shipments understate what Americans actually consume [20]. Second, because a plant is classified by its primary product, film output made inside packaging, resin, or diversified plastics facilities can land in adjacent codes — so the true economic footprint of "non-packaging film" is somewhat larger and blurrier than the $17.0 billion line suggests. The federal figures are reliable for the plants primarily in this business; they are a floor, not a ceiling.

4. The investable universe

There is no listed U.S. company whose main business is NAICS 326113. The closest public proxies and the largest private owners:

Major private / non-listed owners:

Takeaway for allocators: you cannot buy "this industry" as a stock. Public exposure is diluted inside big diversified materials names; concentrated exposure means owning or backing a private extruder.

5. How the money works

Owners here run a spread business on top of a throughput business.

• Resin is the swing factor. Plastic resin (polyethylene, PVC, polypropylene, polyester) is typically half to two-thirds of the cost of a roll of film. Resin prices track oil, natural gas and ethylene, and they move in cycles [13][14]. For context, Eastman reported that raw material and energy costs were approximately 45% of its total cost of operations in 2025 — that is company-wide across a diversified portfolio, not a pure 326113 figure, but it illustrates the order of magnitude [16]. The core of profitability is the spread between the resin cost and the selling price, and — critically — the lag in passing resin changes through to customers. When resin spikes, converters get squeezed until they can raise prices; when resin falls, they can briefly hold price and widen margin. Commodity contracts often have resin pass-through formulas; specialty and one-off orders do not.
• Throughput and uptime. Extrusion lines are the fixed-cost asset. Money is made by keeping expensive lines running at high utilization with minimal scrap, changeovers and downtime. Capacity utilization is the manufacturing lever that most affects unit cost and thus cyclical earnings. Width utilization, gauge control, line speed, downtime, trim recovery, regrind content and changeover frequency are meaningful plant-level value drivers.
• Product mix is everything. Plain commodity film (agricultural sheeting, construction poly, generic liner) is a low-margin, price-competitive grind. Engineered/specialty film — display surface-protection film, certified geomembranes, medical-grade film, window film — carries higher margins, stickier customers and technical barriers. The winners tilt mix toward specialty.
• Freight and geography. Film and sheet are bulky and low-density — you are shipping air and plastic. That makes freight a large cost and keeps producers regional, competing within a shipping radius rather than nationally.
• Working capital and scrap. Resin inventory, receivables and in-line scrap/regrind management materially affect cash conversion.

Price cycle illustration. The BLS polyethylene-film producer-price index reached 304.969 in July 2022 and had fallen to 273.299 by September 2023 — a roughly 10% decline that illustrates the volatility converters face on the selling-price side [28].

The headline metrics an owner watches: capacity utilization, resin-to-price spread, specialty vs. commodity mix, scrap rate, and pass-through lag.

6. What drives demand

Demand is a bundle of several unrelated end markets, which partly offsets any single sector's swings:

• Agriculture: greenhouse and tunnel films, mulch films, silage/grain covers, fumigation films and reservoir liners. Driven by planted acreage, crop prices, and the growth of controlled-environment/greenhouse farming. Demand is supported by water conservation and crop-yield improvement, but growers remain price-sensitive.
• Construction: vapor barriers, under-slab films, house wrap-adjacent sheeting, roofing/insulation films, and temporary protection. Tied to housing starts and non-residential building — the most cyclical driver. Energy and moisture-management requirements can increase film content per building.
• Environmental containment (geomembranes): landfill liners, mining and oil-and-gas containment, water reservoirs, canals and wastewater ponds. Partly regulation-driven (liners are mandated for many waste and containment sites), which gives it a demand floor independent of the building cycle. These products are less commodity-like when specifications, welding performance, durability and installer qualification matter.
• Healthcare and hygiene: breathable films for drapes, gowns and disposables; PVC sheet for medical uses. Structurally growing with an aging population and single-use hygiene demand. Medical-device and wound-care applications offer higher potential margins but require tighter cleanliness, traceability and qualification.
• Electronics/optical: surface-protection films for flat-panel displays and device assembly — the higher-tech, higher-margin corner (Tredegar's niche) [8][9].
• Automotive and architectural: heat rejection, UV control, acoustic performance, surface protection and paint-protection films. Benefits from lighter-weight material substitution trends.
• Industrial, graphic arts and consumer durables: protective films, laminating base films, signage and display sheet.

Because it feeds construction, agriculture and industrial production simultaneously, aggregate demand roughly tracks U.S. industrial activity and building cycles, with specialty niches (geomembranes, display films) on their own trajectories. Global plastic film and sheet demand (all types, including packaging) is projected to grow around 5–6% a year through 2030, but non-packaging demand in mature U.S. markets grows more slowly — low single digits [17][20].

Sustainability as opportunity and threat. Producers can downgauge products, incorporate post-industrial or post-consumer resin, design mono-material structures and recover in-plant scrap. The technical difficulty is maintaining strength, clarity, odor, color and processing consistency. DOE is funding work on separable and recyclable multilayer films, evidence that current structures remain challenging to recycle economically [29].

7. Regulation

• Chemical/environmental (EPA / TSCA): manufacturing and additives fall under the Toxic Substances Control Act. A live 2024–2025 thread is EPA scrutiny of PFAS ("forever chemicals") formed during fluorination of polyethylene, plus broader PFAS reporting under TSCA — relevant to some film/coating chemistries [18]. EPA has also designated vinyl chloride a high-priority substance under TSCA and is conducting a risk evaluation, relevant to PVC film producers [30]. Additionally, EPA has determined that DINP, a plasticizer used in flexible PVC and construction/automotive products, presents unreasonable risk under certain worker-exposure conditions; eventual controls may affect formulation, industrial hygiene, capital spending or substitution economics [31].
• Plastic-waste rules — mostly aimed at packaging, but spilling over: state Extended Producer Responsibility (EPR) and recycled-content laws have proliferated (six-plus states by 2025) [17][19]. Because this code is except packaging, direct EPR exposure is lower than for the packaging siblings — but agricultural mulch-film waste, single-use scrutiny and recycled-content expectations still shape customer demand and material choices. EPA's national plastics strategy emphasizes source reduction, collection, recycling and preventing releases, although EPA notes that the strategy is under review by the current administration [32].
• Pellet loss: an operating and reputational risk. EPA stormwater guidance calls for spill prevention, pellet capture, employee training and disposal controls [33]. Federal legislation introduced in 2026 would prohibit pellet discharges from facilities that make, use, package or transport pre-production plastic materials, though it has not been enacted [34].
• Regulation as a demand tailwind: environmental rules create geomembrane demand — landfill and containment liners are effectively mandated by waste-management regulation, and federally funded water/infrastructure projects can carry Buy America / BABA domestic-content requirements that favor U.S. producers. Product standards (ASTM, GRI-GM for geomembranes; NSF for potable-water liners; UL/food-contact where relevant) gate market access.
• Trade: tariffs and duties on imported film and sheet, and anti-dumping actions, periodically reshape competition from China and elsewhere [20].
• Workplace: standard OSHA process-safety, machine-guarding and air-emissions compliance for extrusion operations. OSHA notes risks of amputations, burns and other serious injuries around plastics-processing machinery, including hot polymer, high voltage, nip points, rotating equipment, thermoforming machinery, noise and spilled pellets [35].

8. Competitive dynamics and consolidation

The structure is fragmented and regionalized: 320 firms, no dominant player, and a long tail of small extruders competing within freight radius (Section 3) [2]. Competition splits sharply:

• Commodity film competes on price, resin buying power and plant efficiency — a scale-and-cost game where independents get squeezed.
• Specialty/engineered film competes on technical capability, certifications and customer relationships — more defensible, better margins.

Consolidation is the multi-decade trend. Private equity and strategics have rolled up independents to gain resin-purchasing scale and national footprint; recent examples of the churn include Berry Global absorbing AEP Industries years ago and then Berry itself being combined into Amcor (2025) [11], and CNH Industrial divesting Raven Engineered Films to a PE buyer (now Viaflex, 2022) [12][21]. Sigma Plastics grew into North America's largest private film extruder by acquisition [10]. Vertical integration with resin producers (e.g., Formosa/Inteplast) is another consolidation vector, hedging the biggest input cost. Expect continued roll-up of sub-scale independents and periodic overcapacity as commodity lines get added.

9. Risks

• Resin-price volatility / margin squeeze. The single biggest earnings risk: a fast resin spike that outruns price pass-through compresses margins [13][14].
• Demand cyclicality. Heavy tie to construction and industrial production means recessions and housing downturns hit volumes. Customer destocking can produce abrupt volume changes even in steadier specialty applications.
• Overcapacity and commoditization. Low technical barriers on commodity film invite price wars and thin margins; added capacity can flood a region.
• Plastic-waste regulation and substitution. Tightening plastics rules, recycled-content mandates and shifts toward paper or bio-based alternatives threaten some commodity applications, even though this code is packaging-excluded. Glass, metal, paper, coated fabrics and molded parts can replace plastic sheet where recyclability, fire performance, stiffness or public perception dominates.
• Import competition and trade policy. Foreign film (Canada, China, Mexico) pressures pricing; tariff swings cut both ways [20].
• Energy/input costs and supply shocks. Resin availability and price depend on petrochemical feedstocks and can be jolted by oil shocks and refinery/cracker outages.
• Environmental liability. For geomembranes in containment, product failure carries meaningful liability and warranty exposure.
• Customer concentration. Smaller extruders often depend on a few large agricultural, construction or industrial buyers.
• Regulatory exposure. PVC producers face additional chemical risk from vinyl chloride and plasticizer reviews; pellet-loss rules add operating and compliance burden [30][31][33].

10. How to invest and the outlook

Public-market routes. Because there is no pure play, exposure is indirect and diluted:

• Tredegar (TG) is the closest listed proxy, and even there non-packaging film (surface-protection/display) is a minority of a micro-cap whose earnings swing with an aluminum-extrusions business [8][9][24].
• Eastman (EMN) provides the clearest listed exposure to automotive and architectural performance films and interlayers, but most of its earnings come from a much broader specialty-materials portfolio; performance films represent roughly 19% of the $2.88B Advanced Materials segment [16][23].
• Mativ (MATV) has advanced-film exposure for automotive and building applications, inside a mixed Filtration & Advanced Materials segment ($767.5M 2025 sales) that also contains filtration media, coatings, converting and extruded mesh [16].
• Other diversified materials names — 3M (MMM), DuPont (DD), and foreign-listed Toray, Nan Ya, Saint-Gobain, SKC — give a sliver of specialty-film exposure inside much larger, unrelated businesses [15][23]. Reserve any judgment on their share prices, dividends or multiples for a company-level analysis; at the industry level, film is too small a fraction to move these tickers.
• A general materials or industrials fund is the practical way to hold this cyclicality without single-name risk.

Private routes (where the real exposure is): direct ownership or acquisition of a regional extruder, backing a PE roll-up platform, or buying a specialty producer (geomembranes, medical film, display film). Private valuations hinge on specialty mix, contracted resin pass-through, customer diversification and line utilization — a commodity extruder trades at a discount to a certified-geomembrane or engineered-film specialist. Diligence should be plant- and application-specific: resin pass-through language; customer and distributor concentration; qualification tenure; line age and width; utilization; maintenance backlog; scrap and regrind economics; environmental permits and pellet controls; power reliability; freight radius; working-capital behavior; and whether claimed "recyclability" or recycled content is commercially verified.

Near-term drivers to watch (forward-looking). The 2024–2025 backdrop was a buyer's market — soft demand and flat-to-lower resin let converters' margins recover somewhat, but 2026 opened with resin suppliers pushing to rebuild margin and with oil-price risk from Middle East disruption threatening a feedstock spike [13][14]. In the near term, the swing factors are (1) the resin-price cycle and how fast producers can pass it through, (2) U.S. construction and housing activity, (3) regulation-driven geomembrane demand from water, waste and infrastructure spending (a relative bright spot), and (4) specialty/electronics film growth. The durable judgment: commodity film stays a low-margin, consolidating grind, while owners who concentrate in engineered, certified or regulation-mandated niches capture the better economics.

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Sources

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