Plastic sheet protector Donau L-type A4 polypropylene 180µ clear blue

Donau L-type A4 plastic sheet protector in clear blue is a polypropylene (PP) sleeve designed for storing and protecting A4 documents. With a 180 µm film thickness and an L-shaped opening, this sheet protector provides a balance of rigidity and flexibility to prevent creasing and light wear while keeping paperwork visible and accessible. The transparent blue tint helps distinguish files without obscuring text or images.

Advantages

The 180 µm polypropylene construction offers reliable protection against moisture, dirt and everyday handling damage while remaining lightweight. The L-type open side allows quick insertion and removal of documents without folding, and the clear blue transparency maintains legibility while enabling subtle color coding. Durable edges resist tearing and extend the usable life of the sleeve.

Suitable for

• Office filing and document presentation
• School worksheets and student portfolios
• Archiving non-critical documents that require visibility
• Short-term storage and transport of certificates, manuals and brochures

Key specifications

• Material: polypropylene (PP)
• Format: A4
• Type: L-shaped opening (top or side open as specified)
• Film thickness: 180 µm
• Color: clear blue tint
• Finish: transparent, glossy surface

How to use

Insert A4 documents into the open side of the sleeve, ensuring edges align with the protector to avoid curling or folding. For best results, slide papers in slowly to prevent static cling and adjust the document so it sits flat inside the sleeve. Use with ring binders, folders or file boxes as required, taking care to avoid overfilling which can deform the protector.

Usage recommendations

Store protected documents in a dry, room-temperature environment away from direct sunlight and heat sources to preserve clarity and prevent warping. For archival needs requiring long-term preservation or acid-free materials, consider specialized archival sleeves; for everyday office and school use, this polypropylene L-type protector provides practical, visible protection.