Packaging material shifts
Evaluate PCR targets, food-contact questions, film performance and converter limits before changing resin or container specifications. Wacker helps identify which claims require documentation and which process limits should be tested first.
Longer-life elastomers
Choose rubber compounds and profiles around chemical exposure, compression set and replacement cycles to reduce maintenance waste. A better gasket or hose fit can lower both replacement frequency and unplanned downtime.
Cleaner molding trials
Clarify WACKER resin, filler, tooling and processing assumptions so sample runs produce useful learning instead of avoidable rejects. Wacker encourages teams to record trial variables so future adjustments are based on evidence.
Selection considerations with both sides visible
PCR resin versus virgin resin
PCR resin can reduce virgin feedstock demand, but variable melt flow, colour and non-intentionally-added substances can widen the qualification burden. Virgin resin offers a tighter baseline for regulated or optical parts but does not meet every recycled-content objective. Compare both routes with lot-specific MFR, density, contamination screening and finished-part testing.
Injection molding versus extrusion
Injection molding supports complex geometry and controlled cavity dimensions; extrusion favors continuous profiles, film or sheet. Tooling, residence time, shear history and annual volume must be reviewed together, because a grade qualified in one process is not automatically qualified in the other.
Repeatable screening path
Where the cited method calls for it, condition specimens at 23°C and 50% relative humidity, record lot number and specimen geometry, run the named ASTM or ISO method, retain an untreated control, and report the value with units and acceptance criterion.
Limitations remain explicit: typical datasheet values are not release specifications; compatibility is media-, concentration-, stress- and time-dependent; and declarations are grade-, site-, market- and revision-specific. Request the current lot-specific CoA with the applicable TDS, SDS or scoped declaration before approval.