3.5g Resealable Glossy Metallic Mylar Ziplock Weed Bags #2276-141599

The laboratory-tested zipper withstands 800+ open-and-close cycles, maintaining seal integrity through repeated use. This helps reduce product exposure, preserve aroma, and improve customer experience after first opening.

Constructed from 4.35-mil composite Mylar, the pouch provides a strong physical barrier against light, humidity, and air—supporting longer shelf stability during storage, transport, and retail display.

Designed for production-line heat sealing, the top opening forms a one-time breakable seal. Combined with the zipper, this dual-seal system delivers both tamper evidence before first use and convenient resealability afterward.

The triple-side sealed base enhances pressure resistance and leak prevention, reducing failure risk during shipping and handling.

This product integrates a resealable zipper, a triple-side leak-proof seal base, and a heat-sealable opening. Constructed from 4.35-mil (approximately 0.11mm) metallized Mylar material, it is specifically designed for a 3.5g (1/8 oz) capacity, ensuring airtight integrity, structural durability, and tamper-evident security.

The resealable zipper, capable of over 800 open-close cycles, works in synergy with the heat-sealable opening to achieve active freshness preservation before initial opening and convenient access during subsequent use. The 4.35-mil material thickness combined with the triple-side leak-proof structure enhances the packaging’s physical barrier and pressure resistance, providing end-to-end reliability—from storage to retail—against moisture, leakage, and tampering.

Herb Product Manufacturers

Products must meet strict medical device packaging standards. The 4.35-mil metallized Mylar material provides a basic physical barrier, while the heat-sealed, one-time tamper-evident closure offers GMP-compliant outer packaging for 3.5g medical Herb. This represents verifiable, irreversible opening evidence, ensuring integrity. The resealable zipper, rated for over 800 open-close cycles, supports patients in multiple uses while keeping the remaining contents sealed.

Herbal Tea Brands

There is an extreme requirement for preserving flavor and aroma. The resealable zipper, capable of over 800 cycles, combined with the basic light-blocking and moisture-resistant properties of the 4.35-mil material, effectively slows the loss of volatile aromatic compounds in tea leaves. This represents long-term freshness preservation and durability far exceeding ordinary foil bags. The standardized 5.5″ x 6″ size also facilitates unified warehousing and logistics management for brands.

High-Value Spices

Products (such as saffron, dried edible roses) are highly sensitive to light and moisture. The 4.35-mil thickness and metallic coating form an effective light barrier, and combined with the heat-sealable opening, achieve an absolute seal before first opening. This represents targeted basic protection for light- and moisture-sensitive raw materials. The standardized size and heat-sealable feature also meet the rapid packaging needs of automated production lines for the 5.5″ x 6″ bag specification, improving production efficiency.

“We previously tested several types of bags for 3.5g flower, but customer feedback indicated that poor seals led to loss of aroma. After switching to these zipper bags, thanks to their heat-sealable tamper-evident opening, the damage rate during shipping dropped to zero. More importantly, the resealable zipper—which can withstand over 800 open-close cycles—has greatly satisfied our repeat customers. They report that even after multiple uses, the bag still effectively locks in freshness. Our single-product repurchase rate has increased by approximately 15%. The 500-piece MOQ also allows a niche brand like ours to flexibly launch limited batches.”

“Our core requirements are packaging efficiency and leak prevention. The bag’s standardized 5.5 x 6-inch size perfectly matches our high-speed production line, reducing heat-seal adjustment time by nearly 20% compared to before. The triple leak-proof seal base completely eliminated the occasional minor oil seepage we previously experienced, reducing production-line quality complaints by over 90%. The single-side brand printing is clear and eye-catching, directly enhancing shelf recognition.”

“Our product is sensitive to light and air and must comply with strict packaging safety regulations. This metallized Mylar bag provides good physical light blocking, and the heat-seal design ensures absolute integrity before the first opening—giving both us and our consumers greater peace of mind. The discount offered for bulk orders of 2,000 pieces allowed us to use more professional packaging while controlling costs. End-user research shows that over 80% of consumers describe the packaging as ‘looking professional and reliable.'”