Hardware parts with complex contours, deep cavities and protruding structures, such as stamping parts, auto fasteners and custom machined components, have long been a challenge for skin packaging. Ordinary packaging film is prone to whitening, excessive thinning and even rupture during deep stretching, failing to achieve complete contour fitting. Our factory's Surlyn skin packaging film boasts excellent ductility and deep-draw forming performance, which can tightly wrap workpieces with complex three-dimensional contours without breakage, delivering reliable full-fit packaging solutions for exporters of irregular industrial parts.
1.Forming Difficulties of Skin Packaging for Irregular Industrial Parts
For parts with large height difference, sharp edges and concave-convex structures, ordinary PE skin film has limited elongation. During vacuum forming, the film is stretched unevenly at the positions with large drop, resulting in local over-thinning and reduced puncture resistance. In severe cases, the film breaks directly, leading to packaging scrapping. Poor forming will also cause gaps between the film and the workpiece, which cannot fix the product firmly, and the parts are easy to shift during transportation, losing the protective value of skin packaging.
2.Core Advantages of Our Surlyn Film in Deep-Draw Forming
Surlyn ionomer resin itself has outstanding toughness and elongation. Our factory's Surlyn skin packaging film maintains high ductility while ensuring sufficient strength, and can achieve uniform stretching under deep drawing conditions. It fits closely along the 3D contour of the workpiece without whitening or fracture at the corners and edges. After forming, the film thickness is evenly distributed, and the puncture resistance and sealing performance of each position remain stable, which can firmly lock the parts on the skin pack board, and there will be no displacement even under long-distance vibration and extrusion.
3.Adaptation Scenarios for Irregular Products Across Industries
This Surlyn film is widely applicable to various irregular products: for auto parts such as brackets, connectors and bushings, it realizes three-dimensional display and shock-proof fixation; for hardware tools with special shapes and castings, it achieves all-round scratch-proof protection; for craft gifts and toy accessories with complex shapes, it takes into account both display effect and protective performance. One film can cover the packaging needs of multiple irregular product lines.
Our factory specializes in the production of Surlyn skin packaging film, food-grade skin packaging film, various specifications of skin pack board and skin pack tray, as well as supporting skin packaging machine equipment. We provide targeted deep-draw skin packaging solutions for complex hardware, auto parts and special-shaped workpieces, supporting sample testing and process debugging to help exporters solve the packaging problem of irregular products.
