PMI foam core · composite materials · CNC shaping

PMI Foam / engineering resource

PMI X Series foam: X-30 to X-350 reference data.

The X Series reference table spans X-30 through X-350. It gives a wider documented density and property range for preliminary screening, while preserving the requirement to confirm the named grade, material form, dimensions, test basis and project validation before any procurement or design release.

PMI structural foam core product surface
Material evidencePMI foam / core form
01Project focus

X-30 to X-350 documented range

02Project focus

Density and property comparison boundary

03Project focus

Machined or sandwich-core geometry

04Project focus

Grade-specific technical-data request

X Series / user-provided reference document typical values

Typical entries, with the source boundary intact.

Reference only / not a guarantee
GradeDensity kg/m³Comp. MPaComp. mod. MPaTensile MPaTensile mod. MPaShear MPaShear mod. MPaHDT °CPore mmRef. stock size mm
X-30300.4200.9370.45141800.2–0.4≥2500×1250×95
X-52520.9501.5720.92211800.2–0.4≥2500×1250×90
X-75751.5752.81051.4351800.2–0.4≥2500×1250×105
X-1101103.01304.01802.4601800.2–0.4≥2500×1250×90
X-2002009.03007.04305.01451800.05–0.2≥800×900×45
X-25025013550116507.01801800.05–0.2≥800×800×40
X-3503502178015840103001800.05–0.2≥800×800×40

Reference document heat deflection temperature: 180°C. Values are series-level reference data and must not be extended to unlisted grades or finished parts. Preserve the named grade, source document and test basis when requesting confirmation; do not treat this table as a supply guarantee, final part result or design release.

Foam material stock stored in a warehouse
Material stock contextSheet stock / storage context. Image is used as visual project context; it does not independently establish certification, tested performance, material availability or a named customer case.
01
Engineering note

Compare listed X Series entries on the same source basis

The user-provided table supplies typical fields for named X Series entries only. Do not interpolate unlisted grades, combine values from other series, or turn a higher density label into automatic approval for a particular load case. The comparison should stay tied to the table, the candidate component and the project’s required evidence.

02
Engineering note

Use geometry to determine what a density discussion means

A flat panel, contoured core, local insert zone or CNC-prepared structure may make different demands on thickness, interfaces, support and inspection. Describe the finished geometry, skins or assembly context and any features that affect machining or handling before requesting a series recommendation.

03
Engineering note

Move from reference values to a project-controlled request

An X Series enquiry should state the requested grade or range, material form, dimensions, process context, quantity and required documentation. Values on this page are not guarantees, certified results or design allowables; they are a traceable reference starting point for the next technical discussion.

Related questions

Questions that make the next engineering conversation more useful.

01Can X-30 through X-350 values be used as universal design allowables?

No. They are typical values from a user-provided reference document. Confirm material-specific evidence and validation for the actual geometry, loading and environment.

02Why is CAD important for an X Series request?

The drawing explains thickness, features, interfaces, contour and inspection context, all of which affect how a series-level material request should be reviewed.