A3 Polyester Premier Pocket Sleeve (310x425mm) - Pack of 10

These pockets are the standard choice for paper and photographic conservators and are renowned throughout the world for superb quality, clarity and reliability. Manufactured from polyester film, these pockets open on the short side and are welded on the other three. This produces a safe and reliable enclosure for the most precious and vulnerable collections. Please note that these are not punched for binders.

Ideal for A3 items.

Approx pocket size: 310x425mm / 12" 1/8 x 16" 5/8

Why Polyester?

Polyester is known for its stability and durability. It does not chemically react with stored items, making it ideal for long-term preservation as well as excellent protection against dust, dirt, and physical damage. High tensile strength ensures that polyester sleeves and enclosures do not tear or stretch easily.

Polyester is the first choice for many museums and archives for their most precious documents and images - not only are the contents protected against nearly all forms of damage apart from light, but the clarity means they can stay protected whilst being viewed as there is no need to remove the items from their polyester sleeves.

What are the properties of Polyester?

• Excellent strength – high tensile strength
• Good moisture and gas barrier properties
• Resistance to stretching or shrinking
• Excellent clarity
• Resistance to dyes, solvents and other chemicals
• Lightweight
• Rigidity and Flatness
• Thermal stability - high temperature resistance, thermal and electrical insulation properties
• Easy to recycle and reuse