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Heavyweight Tyvek Envelopes are super strong, moisture-resistant and tear-resistant. Tyvek expansion is ideal for superior protection for mailing bulky items. These 18 lb. plain envelopes feature an open-end design for easy insertion of documents. Convenient peel-to-seal closure requires no moisture to close.
| Closure Side | Open End |
| Closure Type | Peel & Seal |
| Color | White |
| Country of origin | United States |
| Features | Moisture Resistant |
| Features | Tear Resistance |
| Mailer/Envelope Gusset | 4" |
| Mailer/Envelope Length | 15 1/2" |
| Mailer/Envelope Size | 15 1/2" x 12" |
| Mailer/Envelope Type | Expansion |
| Mailer/Envelope Width | 12" |
| Manufacturer | Business Source |
| Manufacturer Part Number | 65806 |
| Material | Tyvek |
| Packaged Quantity | 50 / Box |
| Print/Message | First Class Mail |
| Printed Design/Pattern/Texture | Plain |
| Product Name | Tyvek Expansion Envelopes |
| Product Type | Envelope |
| Recycled | No |
Material Safety Data Sheet
A Material Safety Data Sheet (MSDS) is a document that contains information on the potential hazards (health, fire, reactivity and environmental) and how to work safely with the chemical product.
