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UK Office Direct£81.06Visit shop Tyvek Gusseted Envelopes C4 H324xW229xD38mm White [Pack 100] - R4120
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Tyvek Gusseted Envelopes are ideal for office managers, shipping departments, and professionals who need to send bulky documents or fragile items securely through the mail. Their primary benefit is an exceptional strength-to-weight ratio that resists moisture, punctures, and tears, ensuring items arrive in pristine condition; however, users should note that the permanent peel-and-seal closure is designed for single-use security, meaning the envelope cannot be resealed once opened.
| Model Part Number | 11841 |
|---|---|
| Brand | Tyvek |
Tyvek material is water-resistant, meaning it will protect your contents from rain and moisture, though it is not intended for full submersion.
Yes, these are standard C4 sized envelopes suitable for all major courier and postal service providers.
The envelope features a 38mm gusset, meaning it can comfortably accommodate items up to approximately 35mm thick while still allowing the flap to seal.
Tyvek is a high-density polyethylene and can be recycled in specific plastic recycling streams; check your local council guidelines for collection.
It is generally not recommended to put Tyvek envelopes through standard desktop printers as the heat and synthetic texture can cause jamming or smearing.
Tyvek has a slick, non-porous finish. Use high-quality pressure-sensitive shipping labels or ensure the surface is clean and dry before application.
The hot melt adhesive requires firm, sustained pressure to bond. Press across the entire length of the flap for 5-10 seconds to ensure a secure seal.
To use these envelopes, simply insert your items, remove the protective liner from the adhesive strip, and press the flap firmly down onto the envelope body. While the Tyvek surface is durable, it is best to use permanent markers or self-adhesive shipping labels for addressing, as standard ballpoint pens may smudge on the smooth synthetic surface. Store these envelopes in a cool, dry place away from direct sunlight to ensure the adhesive strip retains its shelf life. Keep the box closed to prevent dust accumulation on the flaps.
