1. Material families — an overview

The plastic tank market in North America rests on six material families. HDPE (high-density polyethylene) carries the bulk of single-wall industrial tank service: water storage, dilute-acid storage, brine, agricultural chemistry, fuel and lubricant storage. XLPE (cross-linked polyethylene) raises the engineering margin for aggressive chemistries (concentrated sulfuric, sodium hypochlorite, hydrogen peroxide) and adds resistance to environmental stress cracking. MDPE / HMDPE (medium-density polyethylene) covers the lighter-duty potable water and agricultural-chemistry segment. FRP (fiberglass-reinforced plastic) takes the chemistries and temperatures that polyolefins cannot hold (concentrated nitric, hot caustic, oleum). PP (polypropylene) overlaps HDPE with slightly better heat tolerance and is the standard for fume-scrubber sumps. PVC (polyvinyl chloride) handles low-pressure piping and small-format storage at low cost.

Tank manufacturers select the material family based on the chemistry envelope, the working temperature, the specific gravity rating, and the regulatory exposure of the service. The pages below cover the OneSource catalog material families in detail with the relevant ASTM standards, the chemistry envelope for each, and the OEM-brand product lines that build to each material.

2. Why OneSource for material specification

Five OEM brands, full material coverage. Norwesco, Snyder Industries, Chem-Tainer, Enduraplas, and Bushman cover HDPE, XLPE, MDPE, and FRP across the full domestic tank market. Polypropylene and PVDF tanks route through the custom-fabrication network. The procurement engineer comparing HDPE 1.5 SG against XLPE 1.9 SG against FRP isophthalic does it on one quote desk with one purchase-order workflow rather than running parallel relationships with four separate manufacturers.

ASTM-standard discipline. Every tank cited on this catalog references the relevant ASTM standard (D1998 for rotomolded polyethylene, D2282 for LDPE wall, D2285 for XLPE wall, D3492 for chemical resistance, D638 for tensile properties, D790 for flexural properties). The OEM specifier requesting a conformance statement gets the document from the manufacturer with the order acknowledgment.

Honest scope discipline. We do not over-claim. The OneSource catalog is a finished-tank catalog. Process engineers needing raw plastic stock (sheet, rod, tubing, film, machined parts) should source through a specialty plastics distributor; that scope sits outside our catalog. The material reference pages below exist to map the material family to the tank service, not to replace a raw-stock catalog.

Five-brand discipline. We do not pad the catalog with off-brand imports or no-name secondary suppliers. Every tank cited is traceable to a published OEM technical bulletin and a current chemical-resistance chart from the manufacturer.

Pricing transparency. Every product page lists a current price before freight. LTL freight to the destination ZIP is quoted separately through the freight cost estimator or by phone at 866-418-1777. List prices on this site exclude freight; nothing on this catalog ships freight-included by default.

3. Tank classes covered by material family

The OneSource catalog material breakdown: HDPE single-wall vertical (Snyder, Norwesco, Chem-Tainer, Bushman) for ambient-temperature water and dilute-chemistry service; XLPE single-wall vertical (Snyder, Chem-Tainer ProChem) for concentrated acid and oxidizer service; XLPE double-wall (Snyder Captor) for RCRA-regulated and indoor bulk-storage service; HDPE horizontal leg tank (Norwesco, Snyder) for transport and outdoor service; HDPE cone-bottom (Snyder, Norwesco) for batch-process and complete-drain service; FRP custom (custom-fabrication network) for high-temperature concentrated chemistry; polypropylene custom (custom-fabrication network) for fume-scrubber and CIP service.

Cannot find the right material family in the stock catalog? Open a custom-fabrication request for FRP, polypropylene, PVDF, or dual-laminate builds. For raw plastic stock (sheet, rod, tubing, machined parts), source through a specialty plastics distributor — that scope is outside the OneSource catalog.

4. Compatibility resources by material family

Every chemistry stored in a polyethylene, FRP, or fluoropolymer tank has a compatibility envelope tied to the material family. The full chemical compatibility database indexes 500+ chemistries with full compatibility matrices showing HDPE / XLPE / PP / PVDF / FRP vinyl ester / FRP isophthalic / 316L / 304 / carbon steel / titanium / EPDM / Viton / Buna-N rated against each chemistry at multiple concentration and temperature points.

The general material-family compatibility hierarchy: HDPE handles ambient-temperature dilute acids (sulfuric below 70%, hydrochloric below 32%, nitric below 40%), most caustics, brines, and water-treatment polymers. XLPE extends the envelope to concentrated sulfuric (up to 93% at ambient), sodium hypochlorite (12.5% at low storage temperature with UV stabilization), and hydrogen peroxide (35% at ambient). FRP vinyl ester (Derakane 411 / 441 series) takes the chemistries polyolefins cannot hold — concentrated nitric, hot caustic above 150°F, oleum, certain aromatic solvents. Polypropylene overlaps HDPE with slightly better heat tolerance (up to 180°F continuous). PVDF (Kynar) sits at the premium end for high-temperature dosing skids and fluorinated chemistries.

5. ASTM standards and material certifications

Federal and consensus standards governing plastic tank material rest on a small set of well-defined ASTM and NSF references. The specifier should treat each rule as a checklist item during tank selection.

ASTM D1998 — Standard Specification for Polyethylene Upright Storage Tanks. ASTM D1998 covers rotomolded polyethylene upright storage tanks up to 50,000 gallons. The standard specifies wall thickness as a function of specific gravity rating, hoop stress at the design fill height, resin density and melt index, and quality-control sampling. Snyder, Norwesco, Chem-Tainer, and Bushman vertical tanks all certify to D1998.

ASTM D2282 — LDPE wall reference. ASTM D2282 covers low-density polyethylene wall references; relevant for legacy product lines and for cross-reference to the modern HDPE D1998 standard.

ASTM D2285 — XLPE wall reference. The cross-linked polyethylene wall reference for XLPE rotomolded tanks aligns with the polyethylene-wall standards cited in the Snyder XLPE technical bulletin. XLPE rotomolding produces a chemically cross-linked wall that resists environmental stress cracking better than linear HDPE.

ASTM D3492 — Standard Specification for Chemical Resistance. ASTM D3492 is the reference for chemical-resistance test methods used in tank-material qualification. Manufacturer chemical-resistance charts are tested per this method or its equivalents.

ASTM D638 — Standard Test Method for Tensile Properties of Plastics. The tensile-property reference for plastic resin qualification. Resin lots that fall outside the D638 envelope are rejected by the rotomolder before tank production.

ASTM D790 — Standard Test Method for Flexural Properties of Plastics. The flexural-property reference for plastic resin qualification. Used in conjunction with D638 for resin-lot acceptance testing.

NSF/ANSI 61 — Drinking Water System Components. Finished tanks for potable water must carry an NSF/ANSI 61 listing. Snyder XLPE potable-rated lines, Norwesco potable lines, and the Chem-Tainer NSF-61 listed configurations all carry current listings for finished-tank potable water service.

FDA 21 CFR 177.1520 — Olefin polymers for food-contact use. Polyethylene resins meeting 21 CFR 177.1520 qualify for food-contact tank construction. Chem-Tainer maintains an FDA-resin product line for food-contact and food-adjacent service.

State-level overlays sit on top of the federal rules; the relevant state regulatory pillar for the project location captures registration triggers and state-specific material requirements. Those pillars are linked from our state regulations index.

6. Field handling and procurement by material

HDPE selection. Linear high-density polyethylene at 1.5 SG handles the bulk of chemical service at ambient temperature. Standard color is white for chemistry storage (UV protection through carbon-black additive packages or external coating); black for waste-oil and fuel service. Lead times two to four weeks on standard configurations.

XLPE selection. Cross-linked polyethylene at 1.9 SG raises the engineering margin for aggressive chemistries. Snyder is the dominant XLPE rotomolder in the North American market; Chem-Tainer ProChem covers the parallel product line. XLPE costs roughly 15-25% more per gallon than HDPE; the upcharge is justified by the chemistry envelope, the longer service life on aggressive chemistry, and the lower failure rate on environmental stress cracking. Lead times three to six weeks.

MDPE / HMDPE selection. Medium-density polyethylene covers the lighter-duty potable water and agricultural-chemistry segment. Norwesco horizontal leg tanks and certain Chem-Tainer agricultural product lines run MDPE. The chemistry envelope is narrower than HDPE; specifiers should verify against the manufacturer compatibility chart before committing.

FRP selection. Fiberglass-reinforced plastic with a vinyl-ester resin (Derakane 411 / 441) handles concentrated nitric, hot caustic above 150°F, oleum, and certain aromatic solvents. FRP is custom-fabricated rather than rotomolded; lead times run six to sixteen weeks. The custom-fabrication network coordinates the build with the FRP shop.

Polypropylene selection. Polypropylene offers slightly better heat tolerance than HDPE (up to 180°F continuous) and is the standard material for fume-scrubber sumps, certain CIP recirculation tanks, and dosing-skid day tanks. Custom-fabricated; lead times six to twelve weeks.

PVDF selection. PVDF (Kynar) sits at the premium end for high-temperature dosing skids and fluorinated chemistries. Cost runs five to ten times polypropylene per gallon of service. Custom-fabricated only.

Procurement cadence and pricing. Stock HDPE and XLPE configurations ship in two to six weeks. Custom FRP, polypropylene, and PVDF builds run six to sixteen weeks. List prices on this site exclude freight; LTL freight to the destination ZIP is quoted separately. Listed at $X is the convention used across this catalog — freight is never included in the list price by default.

Color and UV stabilization. Standard HDPE and XLPE chemical-storage tanks ship in white with a UV-stabilization additive package in the resin. Black tanks are available for fuel and waste-oil service where light exclusion is the design intent. Custom colors (red, blue, yellow, green, opaque) are available on most product lines at a 5 to 15 percent upcharge with a longer lead time; specialty UV-stabilization packages for outdoor sodium-hypochlorite service are baked into the manufacturer-published UV-stabilized configurations and should be specified by SKU rather than approximated through standard-resin substitution.

Specific gravity rating. Tank wall thickness is engineered to a specific-gravity rating (1.0, 1.35, 1.5, 1.7, 1.9, 2.2 in the standard Snyder lineup; equivalents from Norwesco and Chem-Tainer). The rule is simple: the tank SG rating must equal or exceed the specific gravity of the stored chemistry. Specifying under-rated SG voids the manufacturer warranty and accelerates wall fatigue.

7. Custom fabrication for non-stock material specs

FRP, polypropylene, PVDF, dual-laminate (PVDF or polypropylene liner with FRP structural), and lined-steel custom builds route through our specialty & metal fabrication network. Typical custom-material builds: jacketed polyethylene for temperature-controlled batch service, dual-laminate FRP for fluorinated chemistry above 150°F, lined steel for high-temperature concentrated acid, integrated agitator-mount tanks, and bespoke footprints for retrofit projects. Lead times six to sixteen weeks; the quote desk runs the spec dialogue with the fabricator and stays involved through commissioning.

For raw plastic stock (sheet, rod, tubing, machined parts, fittings, gaskets, valves), source through a specialty plastics distributor such as McMaster-Carr, Curbell Plastics, Piedmont Plastics, or U.S. Plastic Corp. The OneSource catalog scope is finished tanks and tank accessories, not raw plastic stock.

8. Next steps for material specification

Verify the chemistry envelope. Use the chemical compatibility database to confirm the resin family against the chemistry, concentration, and working temperature. Borderline cases route to the manufacturer technical-bulletin chart for final verification.

Quote the freight. Every product page lists a price before freight. Get the LTL freight quote to your ZIP through the freight cost estimator or call 866-418-1777 with the SKU plus destination ZIP plus dock-or-residential delivery indication.

Open a custom request. If the spec falls outside the stock-tank envelope — FRP, polypropylene, PVDF, dual-laminate, lined steel, or any custom geometry — the custom-fabrication request form routes the project to the right shop and the quote desk follows up the same business day.