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 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 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 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 material suitable for food-contact applications.
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.
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
What are zip lock bags used for?+

Zip lock bags are resealable plastic bags used to store, organise and protect small items across healthcare, food, retail and industrial settings. Common uses include portioning food and ingredients, organising medical supplies and patient belongings, sorting small parts and hardware, and protecting documents from moisture and dust. The press seal closure lets you open and reseal each bag repeatedly without tape or heat.

Are zip lock bags food safe?+

Yes. These zip lock bags are food grade and safe for direct food contact, making them suitable for storing dry goods, portioning ingredients and general food storage. They are freezer safe when properly sealed, which helps prevent freezer burn during cold storage.

How does the press seal closure work?+

The press seal closure uses interlocking plastic ridges that snap together when pressed, forming an airtight seal against moisture, dust and contamination. To close the bag, press along the seal from one end to the other until you feel and hear the ridges click together; to open, grip both sides and pull apart. Unlike adhesive closures that weaken after opening, the press seal can be opened and resealed hundreds of times without losing its grip. For a permanent or tamper-evident seal, the bag can also be heat sealed above the press seal closure using a standard impulse sealer.

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

The press seal closure can be opened and resealed hundreds of times while maintaining an effective airtight seal. The interlocking ridges are designed for repeated use without wearing out. For a permanent tamper-evident seal, the bag can be heat sealed above the press seal closure.

What is the difference between standard and heavy-duty 75um zip lock bags?+

Standard zip lock bags suit most everyday storage applications, while heavy-duty 75um bags use thicker LDPE for greater puncture resistance and durability. Choose the 75um option for sharp items, heavy contents or demanding applications that need extra protection.

What sizes do these zip lock bags come in?+

Zeropac stocks 26 sizes of zip lock bags, from 75 x 50mm up to 510 x 510mm, in standard and heavy-duty 75um options. Smaller sizes suit tablets, samples and small hardware; medium sizes suit food portions and components; and larger sizes fit A4 documents, kits and bulk storage. All 26 sizes are held in our Sydney warehouse for fast Australian delivery.

What size zip lock bag do I need for A4 documents?+

For A4 documents (210 x 297mm), the 330 x 230mm or 330 x 330mm sizes provide adequate space. To insert documents flat without folding and with room to spare, choose the 380 x 280mm size.

Can you write on zip lock bags?+

Yes. The LDPE surface accepts permanent marker for labelling, dating and identification. You can also apply adhesive labels to the surface, or place a paper label inside the bag, since the clear material keeps it visible without opening.

Can zip lock bags be heat sealed?+

Yes. The LDPE material can be heat sealed with a standard impulse sealer. For tamper-evident packaging, heat seal above the press seal closure to create a permanent seal while keeping the resealable closure available to the end user once the tamper seal is opened.

Are zip lock bags recyclable?+

These zip lock bags are made from LDPE, which is recyclable through soft plastic recycling programs where available. Clean, dry bags free of food residue are accepted at most soft plastic collection points — check with your local council for drop-off locations.

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 carton quantities available 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 our team for help choosing the right zip lock bag size for your application. Sydney orders dispatch within 48 hours for fast Australian delivery.