Stay updated with the latest packaging technology, production insights, sustainability stories, and notable news from Viet Phat Plastic.
Packaging Tips Heat-sealed bags for food packaging and zip-closure bags aren't interchangeable choices — they solve different problems at different price points. This guide breaks down how a heat seal actually works, why it beats a zip closure on tamper-evidence and cost, when a resealable zip is worth the extra spend, and how to match the right closure to your product.
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Packaging Tips Gauge and micron are a straightforward conversion for most plastic film — except stretch film, where "true gauge" and "equivalent gauge" can describe genuinely different products at the same stated number. This guide explains the distinction, why suppliers often quote by weight instead, and what to ask for before comparing quotes.
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Packaging Tips "Contractor-grade" isn't a regulated term, so the same label can hide very different mil thickness, resin, and seal construction between suppliers. This guide covers the specs actually worth verifying, realistic MOQ ranges when sourcing from Vietnam, and what to confirm before placing a bulk order.
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Packaging Tips Pre-stretch percentage is the biggest lever for cutting pallet film cost per load, yet most buyers compare film by roll price instead. This guide explains why higher pre-stretch is usually a cost advantage rather than a quality compromise, where the containment-force trade-off kicks in, and how to calculate real yield per roll.
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Packaging Tips "How many mils do I need" doesn't have one answer — the same mil rating performs differently depending on resin, and the right thickness depends on what's actually going into the bag. This guide busts the HDPE-vs-LDPE-at-equal-mil myth, breaks down mil thickness by waste type, and shows how seal construction changes how much mil margin a buyer actually needs.
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Packaging Tips Standard stretch film and high-slip film look identical on the roll but behave almost oppositely once pallets are stacked side by side — one clings to adjacent loads during transit, the other lets them glide apart cleanly. This guide breaks down what a slip additive actually does, why one-side versus two-side cling changes how a wrap performs on automated lines, and when the extra cost of high-slip film is actually worth paying.
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