Tag Archives: Bra Cup Quality Control
Bra Cup Foam Spec for Sports and Activewear
Sports and activewear cups need a different foam spec. Here is how Senfeng specs PU foam cups for active programs: density 25-30 kg/m3, ILD 33-35, 1.5-2 mm vents, 4-grade yellowing resistance.
Bra Cup Yellowing Resistance: Questions Buyers Ask
White and pastel bra cups can yellow in storage and transit. Senfeng holds molded PU foam cups to a 4-grade yellowing-resistance standard as the default - here is what buyers should know.
Bra Cup Foam Density and ILD Questions Answered
Foam density (25-30 kg/m3) and ILD (28-35) are the two specs that decide how a PU foam bra cup feels and performs. This guide answers the buyer questions we hear most about both numbers.
Incoming QC and Foam Grade Inspection at Senfeng
Before any PU foam enters the press line, Senfeng checks density and ILD against the ordered spec. Out-of-window lots are held, not blended, and every accepted lot links to a per-shift production record for full traceability.