Home Shipping & Packaging Mailers Expansion Envelopes Tyvek® Expansion Catalog Envelopes with Kwik-Tak® 18lb. Tyvek® 1-1/2" Expansion Envelopes The ultimate in durability that’s lightweight, yet tear and moisture resistant. Perfect for shipping your bulkiest materials and features a convenient Kwik-Tak® pressure sensitive seal. Tyvek® is manufactured from white spunbonded olefin and is a registered trademark of the DuPont Corporation. 10 x 13 x 1 1/2 - 18 Tyvek Open End Expansion Catalog Kwik-Tak Choose Quantity Add To Cart Order Samples Pricing 1 Box $92.44/box 2 Boxes $89.23/box 3 Boxes $86.15/box 4 Boxes $86.15/box View All Volume Pricing Product Details SKU 5394 Color Bright White Spun Bonded Olefin Size 10" x 13" Paper Weight 14lb. Machine Insertable No Recycled No Sealing Method Pressure Sensitive/Kwik-Tak Flap Flap Down Seam Center Seam Add To Cart Order Samples Customer Reviews for Tyvek® Expansion Catalog Envelopes with Kwik-Tak® Related Products 14lb. Tyvek® 1-1/2" Expansion Envelopes Starts $76.44/box 14lb. Tyvek® 2" Expansion Envelopes Starts $136.44/box 18lb. Tyvek® 2" Expansion Envelopes Starts $149.44/box 10 x 13" Tyvek® First-Class Expansion Envelopes Starts $85.44/box 10 x 13 x 2" Tyvek® Expansion Booklet Envelopes Starts $105.44/box 12 x 16 x 2" Tyvek® Expansion Booklet Envelopes Starts $163.44/box