Unibind Crystal Flex Clear Thermal Binding Covers

Unibind Crystal Flex Covers by Peleman are clear, one-piece thermal binding covers for professional reports, proposals, manuals, presentations, menus, catalogs, and client-facing documents. Each cover includes a crystal-clear front cover, SteelResin™ thermal binding spine, and matte back cover.

The clear front lets your printed title page show through, giving each document a custom look without printing directly on the cover. Insert the pages, bind in a compatible Unibind machine, allow the document to cool, and you have a clean, permanent presentation without punching, combs, coils, staples, or loose binding parts.

Key Features

• Clear front cover keeps the title page, logo, project name, or customer information visible.
• Matte back cover protects the final page and gives the document a professional finish.
• One-piece design keeps the front cover, spine, and back cover attached for easy assembly.
• SteelResin™ thermal binding creates a secure bind without punching holes.
• Multiple spine sizes help match the cover to the document thickness.
• Compatible with Unibind and Peleman thermal binding systems.

Crystal Flex Spine Size & Sheet Capacity

Choose the spine size based on total sheet count and paper thickness. Standard 20 lb. copy paper allows a higher sheet count, while thicker 32 lb. presentation paper such as vPaper reduces the number of sheets that will fit.

Using heavier paper, tabs, inserts, dividers, laminated sheets, or specialty stock? Choose the next larger spine when the document is close to the listed capacity.

How to Use Crystal Flex Covers

• Count the pages and choose the correct cover size from the capacity chart.
• Align the pages neatly with the printed title page facing the clear front cover.
• Insert the pages evenly into the spine.
• Place the document in a compatible Unibind thermal binding machine.
• Complete the heating cycle and allow the document to cool before handling.

Best Uses

Crystal Flex Covers are ideal for client proposals, business reports, training manuals, policy books, catalogs, menus, real estate packets, portfolios, event books, and other polished short-run documents where the printed title page should remain visible.

Compatible Machines

Crystal Flex Covers work with compatible Unibind and Peleman thermal binding systems, including the UniBinder 60, UniBinder 120, UniBinder 8.1, and UniBinder 8.2.

Frequently Asked Questions

Are Crystal Flex Covers all one piece?
Yes. The clear front cover, thermal binding spine, and matte back cover are attached as one complete cover.

How do I choose the right size?
Count the sheets, note the paper weight, and include any tabs, inserts, dividers, or specialty paper when selecting a size.

Can I use vPaper with Crystal Flex Covers?
Yes. Because vPaper is thicker than standard copy paper, use the 32 lb. vPaper capacity column when choosing a cover size.

Are Crystal Flex Covers reusable?
They are editable, not reusable. Small page changes may be possible by reheating the same document, but the covers are not intended for reuse on a new project.