12.2 Equipment Materials & Manufacturing

12.2 Equipment Materials & Manufacturing

Domain 3D of the NRPA CPSI blueprint asks what the equipment is made of, how it was finished, and whether the installed piece still matches the product the manufacturer certified. CPSC Handbook 325 (July 2025) §2.5 is the materials chapter. §2.6 is the assembly chapter that tells you who governs the bolts after the crate is opened. Mixing those two with an International Play Equipment Manufacturers Association (IPEMA) sticker is the classic trap: treating a factory mark as proof the installed site is compliant, or treating a homemade rope as "enrichment."

Durability and non-hazardous finishes

Section 2.5.1 is two sentences you should be able to quote. Use equipment manufactured and constructed only of materials that have a demonstrated record of durability in a public playground or similar setting. Select finishes, treatments, and preservatives so they do not present a health hazard to users. Home-center lumber, leftover marina pilings, and a coating that was never evaluated for mouthing children fail that pair even if the structure is pretty.

Hardware that a child cannot undo

Section 2.5.2 assumes the equipment was installed and is maintained to the manufacturer's instructions. Under that condition:

• All fasteners, connectors, and covering devices should not loosen or be removable without the use of tools. A decorative cap a preschooler can twist off with fingers fails even if the bolt behind it is still there.
• Exposed fasteners should be smooth and should not be likely to cause laceration, penetration, or a clothing-entanglement hazard (see also §3.2 and Appendix B).
• Lock washers, self-locking nuts, or other locking means belong on all nuts and bolts so they do not back off.
• Hardware in moving joints should be secured against unintentional or unauthorized loosening.
• Fasteners should be corrosion resistant and chosen so they do not accelerate corrosion of the materials they connect — especially important on wood treated with ammoniacal copper quat (ACQ), copper boron azole (CBA), or copper azole type B (CA-B).
• Bearings or bushings should be easy to lubricate or self-lubricating.
• S-hooks and C-hooks are considered closed when there is no gap greater than 0.04 inches (about the thickness of a dime).

A carriage bolt that a child can back off by spinning the exposed square neck is a §2.5.2 finding. Rank the entanglement or protrusion mechanism separately if the same bolt also fails those tests.

Metals, coatings, and heat

Section 2.5.3 repeats the burn lesson from Domain 3C and puts it on the product. Avoid using bare metal for platforms, slides, or steps. In direct sun those surfaces can reach temperatures that cause serious contact burns in a matter of seconds. Use wood, plastic, or coated metal, or orient bare or painted metal so the surface is not exposed to direct sun year-round. A south-facing uncoated steel chute in July is a materials finding and a site-shade finding. Write both.

Metals that are not inherently corrosion-resistant should be painted, galvanized, or otherwise treated to prevent rust (§2.5.4). Sharp edges belong under §3.4; they are still a materials-and-manufacturing defect when a factory-cut plate was never rolled or capped. Rust that has eaten a weld or a deck stringer is a durability failure under 2.5.1, not merely cosmetics.

Paints: lead, peeling, ingestion, and laceration

All paints and similar finishes must meet the current CPSC regulation for lead in paint: 16 CFR Part 1303, a maximum of 0.009 percent (90 ppm) lead by dry weight. The manufacturer should ensure users cannot ingest, inhale, or absorb potentially hazardous amounts of preservative chemicals or other treatments from contact with the equipment.

Painted surfaces should be maintained to prevent corrosion and deterioration. CPSC is explicit about the child-behavior problem: maintain finishes so children are not playing with peeling paint and paint flakes. Peeling paint is therefore two findings in one sentence. The flake has a sharp edge that lacerates a sliding palm, and the flake is something a toddler will put in a mouth. Older playgrounds with lead-based paints should be identified and given a written control strategy; CPSC still points owners to its October 1996 staff recommendations on identifying and controlling lead paint on public playground equipment. Do not sand a suspect older coating into a dust cloud and call it maintenance.

Wood, CCA, splinters, rot, and insects

Wood should be naturally rot- and insect-resistant (CPSC names cedar and redwood) or treated to avoid that deterioration. Creosote-treated wood — railroad ties, telephone poles — and coatings that contain pesticides should not be used. Creosote, pentachlorophenol, and tributyl tin oxide are too toxic or irritating to be playground preservatives.

Chromated copper arsenate (CCA) was the pressure treatment on a large share of pre-2004 playground wood. Since December 31, 2003, CCA-treated wood is no longer processed for playground applications. CCA-treated wood should not be used as playground mulch. Existing CCA structures are a management problem, not a free pass: CPSC and EPA data support at least annual use of an oil- or water-based penetrating sealant or stain to reduce arsenic migration. Avoid film-forming, non-penetrating stains that peel. When any new treated wood is used, match the hardware to the chemistry; ACQ/CBA/CA-B eat the wrong metals.

Section 3.4 adds the field finish rule Domain 3D still owns: wood parts must be smooth and free from splinters. Table 3 of the handbook lists insect damage, wood splitting, and rot as routine inspection items. Probe end grain, ground-contact posts, and the top arris of timber borders. A cedar post that has gone punky at grade is no longer the durable species named in 2.5.5.

Plastics and ultraviolet light

CPSC does not give plastics their own 2.5 heading. Domain 3D still tests them under demonstrated public-use durability. Ultraviolet light chalks, crazes, and embrittles polyethylene slides, climber panels, and coated decks. A panel that flexes into a white fracture line, a slide bed that has gone powdery and sharp at the sidewall, or a cap that cracks off in your hand is a materials failure. Table 3 names cracks in plastics as a routine check. Replace the component; do not "smooth it with a heat gun" unless the manufacturer says that repair restores the certified part.

Manufacturer instructions, IPEMA, and user modifications

Section 2.6 is short and non-negotiable:

1. Strictly follow all instructions from the manufacturer when assembling and installing equipment.
2. After assembly and before first use, a person qualified to inspect playgrounds for safety should thoroughly inspect the equipment.
3. Keep the manufacturer's assembly and installation instructions, and all other materials collected concerning the equipment, in a permanent file.
4. Secure anchoring is a key factor in a stable installation and must follow the manufacturer's specifications.

IPEMA is a voluntary third-party product-certification program. A participating manufacturer has specified products validated to designated ASTM criteria (commonly F1487, with stated section exclusions, and selected surfacing standards). That mark certifies the manufactured product, not the installed site. Wrong orientation of a slide, a missing lock nut, a footing that missed specified embedment, or a field-drilled hole that created a protrusion are outside the sticker.

User modifications are immediate hazards. CPSC §4.2 says modifications such as loose-ended ropes tied to elevated parts should be removed immediately. Table 3 lists user modifications — ropes tied to parts, or equipment rearranged — beside vandalism. A jump rope on a handrail is a strangulation device the manufacturer never certified. It is not a "site enhancement," and it is not cured by an IPEMA label on the post it was tied to.

Domain 3D, compressed: public-use durability; finishes that are not a health hazard; tool-required, locked, corrosion-resistant hardware; no burning bare metal; lead-compliant, non-peeling paint; wood without CCA, creosote, splinters, rot, or insects; plastics that have not gone UV-brittle; manufacturer instructions and a qualified pre-use inspection; IPEMA on the product, never on the installation; ropes someone added come off now.