Tank liners
Chemical medium and temperature belong on the request. Density near 0.94 g/cm³ is a public HDPE table figure, not a lot certificate. Ask the factory for the figure they will print on the quoted line.
high density polyethylene sheets
Translate the application into purchase requirements, not into a promised result. Density in g/cc can distinguish an HDPE-class request from a lower-density film or plate. Site conditions change the requirement; they do not by themselves change a unit price.
What the project actually demands of high density polyethylene sheets
Wear pads
Abrasion and tensile strength (MPa / psi) are questions if the drawing cites them. UHMW is a neighbouring wording; do not let a salesperson silently upgrade the polymer.
Outdoor covers
UV stabilizer / HALS is a field. Weathering hours and “outdoor grade” slogans are not published here.
Cutting boards, industrial
Color, finish and any food-contact file stay buyer decisions. FDA 21 CFR 177 must name the grade and lot if it is requested.
Assumptions that must be confirmed in writing
These are procurement scenarios. They are not installed case studies or claimed savings.
Commodity PE versus an engineering swap
Industry buyers sometimes reach for PC, PA or PEEK when a commodity PE/PP plate already covers a liner. The cost delta between commodity and engineering resins is typically several times; this desk will not “upgrade” the polymer to finish a cell. Stay on the recorded family unless the buyer writes the change.
Site temperature is not a price lever
A hotter process or a freezer room changes the temperature window on the request. It does not entitle anyone to rewrite Incoterms or hide a different density inside the same line.
PCR content if the brand owner asked
Post-consumer recycled (PCR) content is a percentage the factory must state for the quoted lot. Variable MFI and NIAS risk stay with that lot. This desk does not publish a PCR badge.
Write the application as a requirement, then send it
State density if you use it to name grade, the site medium, and which assumption must be confirmed. We will not convert that into an installed performance claim.
Review Specifications