200G Polythene Bags
Clear Self-Seal Poly Bags (3.5 x 10 in / 89 x 254mm) — 200g (Approx.) / 51 micron
These clear self-seal (S/W) polythene bags are a practical, everyday packaging choice when you need a neat presentation, quick packing, and a reliable closure. Made from clear LDPE-style polythene and supplied in a popular “medium” gauge (often referred to as 200g / ~50–51 micron), they’re ideal for protecting items from dust and handling marks while keeping contents visible for fast identification.
The self-seal flap (pressure-sensitive adhesive strip) allows you to close the bag quickly without heat sealing equipment—helpful for busy packing benches, retail counters, stock rooms, and fulfilment operations. The clear film supports barcode scanning and visual checks, and the consistent thickness helps the bags hold their shape during packing.
Key Features
Fast self-seal closure:
A peel-and-seal adhesive strip provides a quick, tidy closure—no tape, staples, or heat sealer required. Great for repetitive packing tasks and clean presentation.
Clear film for easy identification:
Transparent polythene makes it easy to see what’s inside, speeding up picking, checking, and dispatch while keeping items protected.
Medium gauge protection (200g / ~51µm):
A popular thickness that balances flexibility with durability for general-purpose packaging, storage, and protection.
Neat presentation for retail and fulfilment:
Self-seal bags create a professional finish for products, parts, and paperwork, helping keep items clean and organised.
Versatile size for long, slim items:
The 3.5 x 10 inch format suits narrow products and components, and is commonly used where a longer bag is needed without excessive width.
- Fast self-seal closure for efficient packing
- Clear polythene for visibility and easy stock control
- Approx. 51 micron thickness for everyday protection
- Clean, professional finish for retail presentation
- Useful long format for slim items and components
Typical Uses
- Packaging and protecting long, narrow products and components
- Retail presentation for items that benefit from visibility
- Organising parts, spares, fixings, and small assemblies
- Keeping paperwork, labels, and inserts clean during storage/dispatch
- General stockroom and warehouse organisation
Clear Self-Seal Poly Bags — Full Product Guide
Self-seal polythene bags are a staple across retail, warehousing, manufacturing, and e-commerce because they combine speed, simplicity, and a tidy appearance. This guide explains what the “200g / ~51 micron” specification means, how self-seal closures work, and how to choose and use these bags effectively for your application.
How It Works
The bag features a flap with a pressure-sensitive adhesive strip. To close, you peel away the protective liner and fold the flap down onto the bag. This creates a secure seal suitable for general packaging and storage. Because the closure is adhesive-based, you don’t need heat sealing equipment, and you can achieve consistent results quickly.
Self-seal bags are especially useful when you’re packing many items in a short time, or when you want a clean finish without additional materials like tape.
Materials and Construction
These bags are made from clear polythene film (commonly LDPE). Polythene is valued for its flexibility, clarity, and moisture resistance. The “200g” category is commonly used in packaging to indicate a popular medium gauge; in this listing it corresponds to approximately 51 micron thickness (often written as 51µm or 50–51µm).
Micron thickness is a practical way to compare durability: thicker film generally offers improved puncture and tear resistance, while thinner film offers greater flexibility and lower material use. The ~51µm gauge is widely used for everyday packaging where you want a dependable bag without moving into heavy-duty film.
Floor Type Compatibility
Not applicable—this product is packaging rather than a flooring material.
Health and Safety
As with all plastic bags, keep away from babies and young children to avoid suffocation risk. Use appropriate handling practices in packing areas (e.g., keep work surfaces clear and dispose of release liners responsibly). If you are packaging food, pharmaceuticals, or medical items, confirm suitability for your specific compliance requirements and intended contact conditions before use.
Ideal Applications and Use Cases
Retail and point-of-sale:
Clear self-seal bags help present products neatly while allowing customers and staff to see the contents. They’re useful for items that don’t require a printed bag but still need protection and a professional finish.
E-commerce and fulfilment:
Use self-seal bags to keep items grouped, protect surfaces from scuffs, and keep inserts or labels clean. They can also help reduce packing time compared with taping or heat sealing.
Workshops and manufacturing:
Ideal for organising components, spares, and small assemblies. Clear film supports quick identification and reduces time spent searching for parts.
Documents and inserts:
Useful for keeping paperwork clean and together with the product—especially where moisture resistance and visibility are helpful.
Maintenance, Cleaning and Care
These bags are designed for packaging and storage rather than long-term reuse, but they can be reused for light-duty organisation where appropriate. Store unused bags in a clean, dry area away from direct sunlight and excessive heat to help maintain film performance and adhesive reliability.
For best results, close the bag on a clean, dry surface and avoid contaminating the adhesive strip with dust, oils, or moisture.
Case Study (Typical Workflow Example)
A small parts distributor uses clear self-seal bags to pack long, narrow components. Items are picked, visually checked through the clear film, and sealed in seconds using the peel-and-seal flap. The sealed bags keep parts clean during handling and reduce mix-ups because contents remain visible. Packing staff report faster throughput compared with taping, and the finished parcels look consistent and professional.
Who is it for?
- Retailers who want a clean, clear presentation
- Warehouses and fulfilment teams needing fast, repeatable packing
- Workshops and manufacturers organising components and spares
- Offices and stockrooms keeping paperwork and inserts protected
Colours / Features Available
- Colour: Clear (transparent)
- Closure: Self-seal / self-adhesive flap (S/W)
- Material: Polythene film
- Thickness: Approx. 51 micron (listed as 200g / 50mu category)
Sizes Available
This product page represents a specific size option within a broader range of self-seal polythene bags. If you need a different width/length or a different gauge (thickness), check the surrounding range in the same category to match your product dimensions and protection needs.
Tip: When choosing a bag size, allow extra room for the contents and for the flap to close comfortably without stretching the film.
Reference sources used for structure/spec confirmation:
- Sapphire Packaging category/listing reference: https://store.sapphirepackaging.com/collections/bags-polythene-popular-medium-200g-50mu
- Supplier category context for “200g / 50 micron” poly bags: https://www.carterspackaging.com/Shop/Category/Poly-Bags-LDPE-200g-50mic