

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The BSC PREFERRED TYC912Y is a case of 100 Tyvek envelopes designed for applications where standard paper envelopes fall short. Constructed from 14 lb. olefin material, these envelopes deliver superior resistance to puncture, tearing, and moisture. The self-seal closure eliminates the need for additional tape or adhesive. Tyvek construction provides a strength advantage over conventional paper envelopes, making this case a practical choice for shipping, archiving, or any high-volume mailing operation where envelope integrity matters.
These envelopes are suited for professional mailing, document distribution, and shipping environments where contents need reliable protection from handling damage and moisture exposure. The case format with 100 units per case is appropriate for mailrooms, warehouses, and distribution centers processing consistent volumes of outbound correspondence or materials. The colorful construction also improves visual differentiation in mixed mail streams.
The TYC912Y is listed as equivalent to part number S-11494Y. Suitable as a direct replacement or substitute where that part number has been specified.
No tools required for use. Peel the self-seal strip and press the flap firmly to close. Store unused envelopes in a dry location away from direct sunlight to preserve the adhesive seal integrity. Handle the self-seal strip carefully prior to use to avoid premature activation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!