01 / CUSTOMER PROBLEM
Protect the size chain
For prepreg, composite and thermoforming work, a stable board can reduce rework caused by thermal movement, soft edges or a surface that cannot be sealed consistently.
Boards / Epoxy tooling boards
Epoxy Tooling Boards
Epoxy tooling boards for higher dimensional stability and thermal requirements. Use the grade row for a quick comparison, then open the TDS for cure, machining and service limits.
Engineering view / Epoxy tooling boards
When thermal movement becomes the risk
When a model becomes a working composite tool, thermal movement and surface durability matter as much as machinability. Epoxy tooling boards are selected for fine surfaces, low expansion and stable post-machining geometry in more demanding tooling routes.
02 / SELECTION LOGIC
Decide when to step up
Move from PU to epoxy when the cure or service cycle, surface requirement, tool life or dimensional tolerance makes thermal stability the controlling risk. Match the grade to the actual cure and post-cure route.
03 / PROCESS CHECKPOINTS
Machine, seal, release
Use the correct cutting strategy, leave a controlled finish allowance and seal the machined surface before the release system. Check vacuum integrity, edge repair and the bond between surface and backing structure.
04 / RELEASE CHECK
Use the linked TDS
EPBOARD 0700 and 0700HT have separate technical routes. Confirm temperature, CTE, hardness, post-cure and cycle requirements from the linked TDS before release to production.
Confirm the thermal cycle before release.Share geometry, temperature or hardness target, process route, quantity and finish requirement. The matching EPTEK TDS remains the authority for grade-specific values and handling limits.Contact us ↗
Published grades
Epoxy tooling-board reference data
Compare the reference values below. Open each TDS for test conditions, cure guidance and processing details.
| Grade | Color | Density | Hardness | HDT / Tg | Flexural strength | Compression | CTE | Technical data |
|---|---|---|---|---|---|---|---|---|
| EPBOARD 0700 | Blue | 0.70–0.75 g/cm³ | Shore D 72 | 130 °C | 36 MPa | 50 MPa | 39 × 10⁻⁶ K⁻¹ | Open TDS ↗ |
| EPBOARD 0700HT | Dark blue | 0.72–0.78 g/cm³ | ≥ 72D | ≥ 150 °C Tg | ≥ 38 MPa | ≥ 53 MPa | ≤ 49 × 10⁻⁶ K⁻¹ | Open TDS ↗ |