Zip Lock Bags
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Zip lock bags are resealable plastic bags with a press-shut closure along the top that you open and close by hand. Plastpack makes them in Australia, and on our site the same product sits under its trade name, press seal bags. If you searched for ziplock bags, snap lock bags or resealable bags, this is the range you want. We extrude the film, print it and form every bag in our own facility, so you order direct from the maker instead of a reseller passing on someone else’s stock. That means you set the thickness, size and print, get consistent batches, and buy from film we already hold on-site for quick supply.
Zip Lock, Snap Lock and Press Seal: The Same Bag
All of these names describe one product: a plastic bag with an interlocking channel that presses closed with your fingers and reopens as often as you need, with no heat, tape or clips. Around Australia the same bag gets called a ziplock bag, a snap lock bag, a resealable or reusable plastic bag, a zip seal bag, a grip seal bag or a poly ziplock bag. Whichever term fits how you talk about it, our press seal range is the bag you are describing.
Our Zip Lock Bag Range
We hold a wide range of zip lock bags in stock and run made-to-spec orders on request. The three core lines are:
Premium Zip Lock, 50 microns
The everyday 50 micron ziplock bag for packing samples, small parts, retail items and general storage. Clear film keeps the contents visible, and the closure gives a firm, repeatable seal.
Heavy Duty Zip Lock, 75 microns
A thicker-walled 75 micron bag for sharp, heavy or abrasive contents such as fixings, hardware and components. The heavier film resists splitting and holds its seal through handling and transport.
Write-on Panel Zip Lock, 50 microns
The same closure with a matte white write-on panel for labelling by hand. Handy where dates, batch numbers, contents or specimen details go straight onto the bag.
Please note
Stock bags may carry a red, blue or clear strip along the top. This applies to stock lines and is beyond our control, except on custom orders. Sizes are given as Opening x Depth in millimetres, with depth measured from the seal down.
Sizes and Thickness
Zip lock bags run from small ziplock bags for tablets, beads and fixings up to large bags for bulkier goods, all in the same clear film. The gauge you choose depends on the contents. Light items and short storage are fine on 50um. Heavy, sharp or often-handled contents call for 75um so the bag does not split at the seal. If you are unsure, tell us the weight and edge profile of your product and we will point you to the right one, or read our guide on what thickness you need.
Food-Grade Zip Lock Bags
Plenty of zip lock bags go straight onto food, so the film matters. We manufacture food-grade sealable bags for food-contact use, made to the relevant Australian food safety requirements. They suit portioning, dry goods, produce and resealable retail packs. Tell us it is for food when you enquire and we supply the correct film. See our food-grade bags for more.
Bulk Zip Lock Bags, Supplied Australia-Wide
We supply zip lock bags in bulk to businesses right across Australia. Because we keep around 50 tonnes of film at the factory, the material for your order is usually already here, which keeps lead times short and dispatch quick. For regular buyers we can hold your size and spec on file, so reordering is a phone call. Browse the full plastic bags range for related products.
Custom and Printed Zip Lock Bags
When a stock size does not fit the product, we make the bag to your spec: your size, thickness, seal and print. With up to six-colour printing in-house, branding, handling instructions or compliance text goes straight onto a custom printed ziplock bag. The minimum for a custom-size run is 10,000 units. You can also order a sample first to check the film and seal before committing to a run.
What Businesses Use Zip Lock Bags For
The hand-press closure opens and reseals with no tape, heat or fasteners, which is why zip lock bags turn up across so many trades. Common uses include:
Food packing and portioning
Dry goods, produce and resealable retail packs in food-grade film. See our food industry range.
Trade and industrial storage
Heavy duty ziplock bags keep fasteners, spares and components sorted, sealed and protected on the bench, in the van and on the shelf.
Medical, clinical and sample handling
Resealable bags suit sample handling, parts kitting and controlled storage. For regulated use, specify against the relevant standards and we manufacture to those requirements. See our medical and clinical range.
Retail and repackaging
Clear zip lock bags present product well and let customers reseal after opening, which suits repackaged goods and multi-use items.
Why Buy Zip Lock Bags From the Manufacturer
Most sites ranking for ziplock bags are resellers holding whatever a third party produced, which limits your choice of size, thickness and turnaround. Plastpack runs the whole process from film to finished bag, so you get the exact spec you need, batches that stay consistent, and stock on hand for quick supply across Australia.
Request a Quote on Zip Lock Bags
Send us your size, thickness, quantity and whether you need printing or a write-on panel, and we will come back with a clear price and no hidden costs. For ongoing supply we can keep your spec on file for fast reordering. Contact us today to define your requirements.
Zip Lock Bags FAQ
Are zip lock bags and press seal bags the same thing?
Yes. Zip lock is the everyday name; press seal is the trade name. Both are a resealable plastic bag with a press-shut closure, also called a snap lock, resealable or grip seal bag. Our press seal range is exactly what you want if you searched for zip lock bags.
Where can I buy zip lock bags in bulk in Australia?
Plastpack supplies bulk zip lock bags Australia-wide, direct from the factory. We hold film on-site to keep turnaround fast on large orders. Contact us with your size and quantity for a quote.
What thickness zip lock bag do I need?
For light contents and general storage, 50um is usually enough. For heavy, sharp or frequently handled items, 75um resists punctures and holds the seal better. Match the gauge to the weight and edge profile of the contents.
Do you make food-grade zip lock bags?
Yes. We produce food-grade sealable bags for food-contact use, made to the relevant food safety requirements. Mention food use when you enquire so we supply the right film.
Can I get zip lock bags in a custom size or printed?
Yes. As the manufacturer we make bags to your size, thickness and seal, with up to six-colour printing and write-on panels available. The minimum for a custom size is 10,000 units.
Can zip lock bags be heat sealed?
The press closure is designed to reseal by hand, so heat is not needed for normal use. If you need a bag that is also heat sealed for tamper evidence or a permanent seal, tell us and we will advise on the right film and format.