28/400 Black Phenolic Cap Flat Foam Liner

For Part 134290, the central question is how the compression-molded closure behaves in the assembled package. Product teams may consider it for prestige beauty, wellness, pharmaceutical, supplement, and specialty-product packaging. A premium cap profile still requires careful review of thread engagement, liner compression, and removal force. Before release, evaluate application torque, seal integrity, removal force, and distribution performance. That discipline protects both package performance and the consumer experience.