EB700 High Temperature Epoxy Tooling Board

EB700 is a high quality 700kg/m³ epoxy tooling board. This rigid epoxy tooling block is recommended for demanding applications for CNC machining of highly accurate models, patterns or masters as well as production tools/moulds.

Epoxy is the tooling board of choice for high temperature applications and is essential when making prepreg composite moulds or components where, at elevated temperature, this epoxy pattern material will not inhibit the cure of prepregs in the same way that polyurethane (PU) board will.

Typical Usese

EB700 Epoxy Tooling Board can be used to produce highly accurate patterns and moulds. Patterns can be used to produce high volume composite moulds, including using prepreg tooling systems (with cure temperatures up to 130°C) and where dimensional stability is critical.

For smaller production runs EB700 can be used to produce the working mould itself. In this situation the machined mould - once suitably sealed and prepared - can be used as a mould/tool for the production of composite parts, including the manufacture of prepreg composite components (oven-only or autoclave cure).

Advantages

• High dimensional stability (low CTE)
• High temperature use (up to 130°C)
• Compatible with epoxy tooling and component prepregs
• Can be used directly as a mould/tool, including with prepregs
• Excellent internal consistency for a high quality surface finish

How to Buy

This board is available in 2 thicknesses; 50mm (2") and 100mm (4") and a range of sizes up to 500mm x 1500mm (19" x 59"), please select the thickness and block size you require from the drop-down menu at the top of the page.

Further Information

Bonding

For larger patterns or more diverse shapes, it is often necessary to bond multiple boards together or to cut and join a board to produce a hollow 'rough shape' prior to machining. In this case, EA700 Epoxy Tooling Board Adhesive can be used to bond the tooling board, resulting in machinable bond-line which matches the density and behaviour of the surrounding board.

Finishing

EB700 can be cut and shaped by hand however it is a high density material and better suited to CNC machining. Once machining is complete, the board can be finished to an excellent satin finish using a range of abrasive papers, typically ranging from 400 to 1200.

Release Preparation

Depending on the level of gloss required, once the machined board has been finished to the required standard it can either be coated directly with a suitable chemical release agent (such as Easy-Lease) or it can be first sealed using a specialist board sealer before applying release agent.

When release coating the board without first using a specialist board sealer, numerous application of release agent will be required and the gloss level attainable will be limited to a satin finish.

By using a specialist board sealer, a full gloss superior surface finish can be quickly achieved. Follow the instructions for the board sealer you are using. Easy Composites' S120 Advanced Board Sealer is recommended for sealing EB700 board and can be applied by lint-free cloth or by spray. Typically, 3-4 layers of S120 Board Sealer will provide a non-porous, hard-wearing surface for a low volume production mould. Once hardened the S120 Board Sealer finish can be flatted and polished to a high gloss.

After using a suitable board sealer, a compatible release-agent, such as Easy-Lease, is required. Release agent should be applied according to the accompanying instructions.