Zip Lock Bags

Clear resealable zip lock bags organise and protect items across healthcare, food processing, retail and industrial applications. The press seal closure opens and closes repeatedly while maintaining an airtight barrier against moisture, dust and contamination. Made from durable LDPE, these bags suit medical supply storage, food portioning, parts organisation and...

Clear resealable zip lock bags organise and protect items across healthcare, food processing, retail and industrial applications. The press seal closure opens and closes repeatedly while maintaining an airtight barrier against moisture, dust and contamination. Made from durable LDPE, these bags suit medical supply storage, food portioning, parts organisation and document protection.

Food-grade certified for direct food contact. The transparent material allows visual identification without opening. All 26 sizes stocked in Sydney for fast Australian delivery.

26 sizes available from 75 x 50mm to 510 x 510mm, including standard and heavy-duty 75um options. See the table below for details.

At a Glance

Size Range Dimensions Pack Size Best For
Small 75×50mm to 150×100mm (6 sizes) 1,000/carton Tablets, samples, small hardware, jewellery
Medium 180×100mm to 255×200mm (6 sizes) 1,000/carton Food portions, medical supplies, components
Large 305×205mm to 330×330mm (6 sizes) 500-1,000/carton A4 documents, patient belongings, kits
Extra Large 380×180mm to 510×510mm (10 sizes) 500-1,000/carton Bulk storage, equipment, garments, large items

Perfect for: Healthcare facilities organising medical supplies and patient belongings, food manufacturers portioning ingredients and samples, and industrial operations managing parts inventory and documentation.

Product Details
Key Features+
  • Press seal closure opens and closes repeatedly while maintaining an airtight seal.
  • Durable LDPE construction resists punctures and tears during handling and storage.
  • Airtight moisture barrier protects contents from humidity, dust and environmental contamination.
  • Crystal clear transparency allows instant visual identification without opening.
  • Food-grade certified safe for direct food contact and food storage applications.
  • 26 sizes available from 75×50mm to 510×510mm to suit any application.
  • Heavy-duty 75um options available in select sizes for demanding applications.
  • Smooth flat design stacks neatly and stores efficiently.
  • Easy-open seal allows quick access without tools or tearing.
  • Bulk carton quantities provide cost-effective supply for high-volume operations.
Why This Works for Healthcare, Food and Industrial+

For Healthcare and Medical Staff

  • Clear bags allow visual verification of contents without opening.
  • Resealable closure maintains sterility between uses.
  • Multiple sizes accommodate everything from tablets to patient belongings.
  • Moisture barrier protects sensitive medical supplies.
  • Easy labelling surface for patient identification and dating.

For Food Processing and Kitchen Staff

  • Food-grade certified for direct food contact.
  • Airtight seal maintains freshness and prevents cross-contamination.
  • Clear material enables quick ingredient identification.
  • Range of sizes suits portion control and ingredient storage.
  • Resealable design reduces waste from partially used contents.

For Industrial and Warehouse Operations

  • Organises small parts, fasteners and hardware by size and type.
  • Protects components from moisture and dust during storage.
  • Transparent material enables quick inventory checks.
  • Durable construction withstands workshop handling.
  • Heavy-duty 75um options available for sharp or heavy items.

For Facility Managers and Procurement

  • 26 sizes cover virtually any storage requirement.
  • Bulk carton quantities reduce per-unit costs.
  • Australian stock ensures reliable supply without import delays.
  • Single supplier for all zip lock bag requirements.
  • Food-grade certification simplifies compliance documentation.
Use Cases+

Healthcare and Aged Care

  • Storing and organising patient medications and supplements.
  • Packaging patient belongings during admission and discharge.
  • Organising medical consumables and supplies.
  • Storing wound care supplies and dressings.
  • Protecting documents and paperwork from spills.

Food Processing and Hospitality

  • Portioning ingredients for recipe kits and meal prep.
  • Storing spices, seasonings and dry goods.
  • Organising samples for quality control testing.
  • Packaging condiments and sauces for takeaway orders.
  • Storing leftover ingredients to reduce waste.

Retail and E-commerce

  • Packaging small accessories, jewellery and spare parts.
  • Protecting items during shipping and handling.
  • Organising inventory by SKU or product type.
  • Bundling promotional items and sample kits.
  • Storing returns and exchanges during processing.

Industrial and Manufacturing

  • Organising fasteners, screws, bolts and small hardware.
  • Protecting precision components from moisture and dust.
  • Storing samples for quality control and testing.
  • Packaging spare parts and replacement components.
  • Organising tool kits and maintenance supplies.

Office and Administration

  • Protecting documents and paperwork from damage.
  • Organising stationery and office supplies.
  • Storing electronic accessories and cables.
  • Archiving receipts and important records.
How Press Seal Closure Works+

The press seal closure uses interlocking plastic ridges that snap together when pressed. This creates an airtight seal that protects contents from moisture, dust and contamination. Unlike adhesive closures that lose effectiveness after opening, the press seal can be opened and closed hundreds of times while maintaining a reliable seal.

To close the bag, simply press along the seal from one end to the other. You will feel and hear the ridges clicking together. To open, grip both sides of the seal and pull apart. The bag can also be opened by sliding your fingers along the seal to separate the ridges.

For applications requiring a permanent seal, the bags can also be heat-sealed above the press seal closure using a standard impulse sealer. This provides tamper-evident packaging while keeping the resealable closure available for the end user.

Complete Size Guide+

Small (1,000/carton)

75×50mm, 90×60mm, 100×75mm, 125×75mm, 125×100mm, 150×100mm

Medium (1,000/carton)

180×100mm, 200×150mm, 205×100mm, 205×125mm, 230×150mm, 255×200mm

Large (500-1,000/carton)

305×205mm, 305×230mm, 305×255mm, 330×230mm, 330×330mm

Extra Large (500-1,000/carton)

380×180mm, 380×255mm, 380×280mm, 380×305mm, 405×305mm, 405×355mm, 450×350mm, 500×380mm, 510×510mm

Heavy-Duty 75um (500-1,000/carton)

265×180mm, 400×180mm. Thicker material for demanding applications requiring extra puncture resistance.

Technical Specifications
Feature Details
Material Low-Density Polyethylene (LDPE)
Thickness Standard (40um) and Heavy-Duty (75um)
Closure Type Interlocking press seal (resealable)
Seal Cycles Hundreds of open/close cycles
Heat Sealable Yes (above press seal for tamper-evident closure)
Colour Clear (high transparency)
Food Grade Yes
Moisture Barrier Yes (airtight when sealed)
Freezer Safe Yes
Sizes Available 26 sizes (75×50mm to 510×510mm)
Pack Quantities 500 or 1,000 per carton (varies by size)
Storage Requirements Cool, dry location away from direct sunlight
Recyclability LDPE recyclable where facilities exist
Frequently Asked Questions
Are these bags food safe?+

Yes. These zip lock bags are food-grade certified and safe for direct food contact. They are suitable for storing dry goods, portioning ingredients, and general food storage applications. For freezer storage, ensure the bag is properly sealed to prevent freezer burn.

How many times can the seal be opened and closed?+

The press seal closure can be opened and closed hundreds of times while maintaining an effective seal. The interlocking ridges are designed for repeated use without losing their sealing ability. For applications requiring a permanent tamper-evident seal, the bag can be heat-sealed above the press seal closure.

What is the difference between standard and 75um bags?+

The 75um bags use thicker LDPE material for increased puncture resistance and durability. These heavy-duty bags are recommended for sharp items, heavy contents, or applications requiring extra protection. Standard bags suit most general storage applications.

Can I write on these bags?+

Yes. The LDPE surface accepts permanent marker writing for labelling and identification. For removable labelling, adhesive labels can be applied to the bag surface. The clear material also allows you to place a paper label inside the bag for identification.

Can these bags be heat sealed?+

Yes. The LDPE material can be heat sealed using a standard impulse sealer. For tamper-evident packaging, heat seal above the press seal closure. This creates a permanent seal while preserving the resealable closure for the end user after the tamper seal is opened.

What size should I choose for A4 documents?+

For A4 documents (210×297mm), the 330×230mm or 330×330mm sizes provide adequate space. If documents need to be inserted without folding and with room to spare, the 380×280mm size is recommended.

Are these bags recyclable?+

LDPE is recyclable through soft plastic recycling programs where available. Check with your local council or REDcycle collection points for soft plastic recycling options. Clean, dry bags without food residue are accepted by most soft plastic recycling programs.

Why Zeropac & Related Products

Why Zeropac

  • Australian stock held in our Sydney warehouse for immediate availability.
  • Fast dispatch with orders shipped in days, not weeks.
  • Consistent quality from established manufacturing partners.
  • 26 sizes available covering virtually any storage requirement.
  • Bulk quantities with carton pricing for high-volume operations.
  • Technical support to help select the right size for your application.

Related Products

Browse our full range of zip lock bags with all 26 sizes stocked in Sydney for fast Australian delivery. Need help selecting the right size for your application? Our team can advise on bag dimensions and pack quantities.

Request samples or contact Zeropac for bulk pricing. Sydney orders dispatch within 48 hours.