Aug 29, 2026
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materials
Luxury closures in clear acrylic carry the brand's first impression, so a fine network of whitish marks on the surface reads as a failure even when the part still works. The mechanism is stress crazing: a glassy polymer under combined mechanical stress and solvent exposure…
Aug 29, 2026
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materials
Recycled PET enters a cosmetics bottle project with a processing question built in: every re-melt shortens a share of the polymer chains, intrinsic viscosity drifts down, acetaldehyde-related chemistry becomes a live subject for sensitive formulas, and wall behavior — including the stiffness of thick-walled bottles…
Aug 29, 2026
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materials
TL;DR Terpene-based formulations — botanical oils, fragrance concentrates, aromatherapy blends — stress polyolefin packaging two ways at once: the solvent wants to migrate through the wall, and chemically wetted plastic under load can crack. Fluorination of HDPE is the classic remedy, discussed here as treatment…
Aug 29, 2026
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materials
Fluted and ribbed glass is a molded-in decoration that reshapes the whole forming chain: mold relinquishment draft, wall distribution at rib crests, and thermal stress concentrations all behave differently when the cavity is no longer a smooth cylinder. Glass is a recorded material, and the…
Aug 29, 2026
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materials
Bio-PET and virgin PET sound like one materials conversation, but in this program they sit on different sides of the register. PET is a registered bottle material, and the recycled-content PET variant is likewise recorded, with the recycled-content share defined per project — the entry…
Aug 29, 2026
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materials
Chemical strengthening is a glass-industry process and test subject, not a registered program position: no strengthening treatment or glass type classification is recorded in the material register. The recorded side is concrete — glass is a registered material, fragrance glass bottles are formed by external…
Aug 29, 2026
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materials
PLA and PHA names carry three different claims — feedstock origin, part behavior, and end-of-life state — and this program holds catalog-side evidence for only the first layer. PET, PE, and PP are the registered bottle materials, with the dropper family built on glass and…
Aug 29, 2026
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materials
PCR polypropylene is one of the few recycled-content materials in this program that is actually on record. PCR PP is registered in the material register as a recycled-content variant of polypropylene, with the recycled-content percentage configured per project, and usage increasing under customer project requirements.…
Aug 29, 2026
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materials
Opal and flint are glass-industry terms for body color and opacity — not fields of this program's record. The catalog side is what is recorded: glass is a registered material, fragrance glass bottles are formed by external partners, the cream jar family spans 25 catalog…
Aug 29, 2026
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materials
Multi-layer EVOH barrier bottles sit between two deeply different evidence layers: the recorded single-material bottle families and a claim direction for barrier performance. In this program PET, PE, and PP are the registered bottle materials — the dropper family spans 73 catalog models with glass…
Aug 29, 2026
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materials
The chemical state of a glass inner surface is decided by the supplier's process — annealing-lehr treatments such as SO2 sulfur treatment and dealkalization — together with the formulation it contacts. In this program the catalog side is what is recorded: glass is a registered…
Aug 29, 2026
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materials
Recycled and virgin aluminum occupy different evidence layers in this program. The recorded side is concrete: aluminum is a registered material with an anodized processing route, anodizing is recorded as a surface treatment rather than a standalone material, metallic and matte finishes sit on the…