Boards / Model boards

Model Boards

Model boards for patterns, masters and design-reference geometry. Select a published grade below, then use its TDS for the confirmed values and processing notes.

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Engineering view / Model boards

From CAD to a reviewable full-scale model

Model boards are chosen when the customer needs a clean, stable physical reference that can be revised quickly. The right grade balances edge retention, machining behaviour, surface finish and the expected number of design changes.

01 / CUSTOMER PROBLEM

What this route solves

Create large styling, design-reference or master models without the mass and lead time of metal. A homogeneous board gives the design team a surface they can inspect, paint and change before committing to a mold or production tool.

02 / SELECTION LOGIC

Choose for the job

Start with model size, surface class, machining method and expected revision work. Density is only one input; edge stability, chip formation, bonding, repair and the final surface treatment often decide the real cost.

03 / PROCESS CHECKPOINTS

Keep the surface honest

Bond and support the blank correctly, rough and finish machine with a controlled allowance, then seal pores and repair edges before paint or mold work. Keep the board grade, adhesive, filler and finishing system compatible.

04 / RELEASE CHECK

Know the boundary

A model-board grade is not automatically a production mold. Confirm temperature, release system, part count and thermal cycling against the specific TDS before using a model as a tool.

Choose the board with the final surface in mind.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

Model-board reference data

Compare the reference values below. Open each TDS for test conditions, machining guidance and processing details.

Grade	Color	Density	Hardness	HDT	Flexural strength	Compression	CTE	Technical data
PUBOARD 72	Brown	44.95 ± 1.87 lb/ft³	Shore D 70 ± 3	158 ± 5.4 °F	6,091.58 ± 290.08 psi	7,251.89 ± 725.19 psi	27.78 ± 2.78 × 10⁻⁶ °F⁻¹	Original TDS (English) ↗ Translated TDS · PDF ↗
PUBOARD 75	Brown	46.82 ± 1.25 lb/ft³	Shore D 70 ± 3	> 158 °F	> 5,801.51 psi	> 6,526.7 psi	< 30.56 × 10⁻⁶ °F⁻¹	Original TDS (English) ↗ Translated TDS · PDF ↗
PUBOARD 0780	Brown	46.82 ± 1.25 lb/ft³	Shore D 70	161.6 °F	6,091.58 psi	7,251.89 psi	27.78 × 10⁻⁶ °F⁻¹	Original TDS (English) ↗ Translated TDS · PDF ↗