CNC HOT-WIRE FOAM ENGINEERING

Every cubicmillimeterengineered.

Closed-cell polyethylene inserts precision-cut to your CAD geometry — protecting satellite components, surgical robots, and million-dollar optics from the factory floor to final destination.

MIL-STD-2073ASTM D4169ISTA 2AISO 9001:2015
24.0 IN ± 0.0301.75 IN CAVITY2.0 PCF DENSITY25% COMP8 PSI LOAD4.0 INBILLETSECTION A-ASHIELD-INS-2024-REV4
99.7%
FIRST-ARTICLE PASS RATE
per MIL-STD-2073-1E
4.2G
PEAK SHOCK ABSORBED
ASTM D4169 Cycle II
186K+
CUSTOM INSERTS SHIPPED
FY 2024 production
SCROLL
MIL-STD-2073-1E CERTIFIEDASTM D4169 DROP TESTEDISTA 2A VALIDATEDISO 9001:2015 REGISTEREDCLOSED-CELL POLYETHYLENECNC HOT-WIRE PRECISION CUT30-INCH EDGE DROP SURVIVALSAME-DAY QUOTING ON STANDARD BILLETS
01 / PERFORMANCE DATA

Numbers before narrative.

Every card is backed by a test report or production record. Filter by your industry to see what matters most.

99.7%
First-Article Pass Rate

Across 14,200 custom insert orders in 2024. Each cavity verified against CAD nominal with CMM inspection before shipment.

Lockheed Martin avionics trays — 847 inserts, zero NCRs
AEROSPACEDEFENSE
[ EXPAND ]
4.2G
Peak Shock Absorbed

Measured per ASTM D4169 Cycle II at 30-inch edge drop. Closed-cell PE density 2.0 PCF, 25% compression deflection at 8 PSI.

Intuitive Surgical robotic arm shipments — 100% arrival integrity over 3,200 units
MEDICALELECTRONICS
[ EXPAND ]
186K+
Custom Inserts Shipped FY2024

From single prototypes to 10,000-unit production runs. Average lead time 6 business days from CAD approval.

12 semiconductor fabs — wafer cassette foam, zero breakage claims
ELECTRONICSDEFENSE
[ EXPAND ]
0.030"
Cavity Tolerance

±0.030 inch on all CNC hot-wire cut cavities. Tighter tolerances available on request with tooling qualification.

AEROSPACEMEDICAL
[ EXPAND ]
6 BIZ DAYS
Average Lead Time

From CAD file submission to certified shipment. Rush 3-day service available for defense programs with existing material stock.

Northrop Grumman — 48-hour expedite on classified sensor trays
DEFENSEAEROSPACE
[ EXPAND ]
14 GRADES
Foam Formulations in Stock

Polyethylene 1.2–6.0 PCF, cross-linked PE, conductive PE for ESD-sensitive electronics, anti-static black, and flame-retardant UL94 HF-1.

Applied Materials — ESD conductive foam for 300mm wafer carriers
ELECTRONICSMEDICAL
[ EXPAND ]
100%
MIL-STD-2073 Compliant Packaging

Full documentation package: material certifications, first-article inspection reports, and packaging data sheets for defense contract compliance.

DEFENSE
[ EXPAND ]
30"
Edge Drop Certified

ISTA 2A and ASTM D4169 drop test protocol. All standard insert profiles pre-qualified. Custom profiles tested on request.

Boston Scientific — spinal implant trays, FDA 21 CFR Part 820 compliant
MEDICALAEROSPACE
[ EXPAND ]
8 YRS
Zero Wafer Breakage Claims

Continuous production for semiconductor clients since 2016. Conductive PE inserts engineered to SEMI standards for 200mm and 300mm fabs.

TSMC, GlobalFoundries, Micron — combined 22,000 cassette inserts per year
ELECTRONICS
[ EXPAND ]
02 / MATERIAL SPECIFICATIONS

Specify the right grade.
Not the cheapest one.

Fourteen foam formulations in continuous stock. Each grade is characterized against ASTM D3575 and tested per our internal qualification protocol before entering production. Click any row to see the full data sheet.

GRADE
DENSITY
COMP. LOAD
TEMP RANGE
PE-1.2 ULTRA-SOFT
1.2 PCF
4 PSI @ 25%
-65°F to +200°F
PE-2.0 STANDARD
2.0 PCF
8 PSI @ 25%
-65°F to +200°F
PE-2.0 CONDUCTIVE
2.0 PCF
8 PSI @ 25%
-65°F to +200°F
PE-4.0 HEAVY DUTY
4.0 PCF
18 PSI @ 25%
-65°F to +220°F
XLPE-2.0 CROSS-LINKED
2.0 PCF
9 PSI @ 25%
-100°F to +250°F
DOWNLOAD FULL MATERIAL CATALOGAll grades available in sheets, rolls, and custom-cut billets. Minimum order: 1 unit.
03 / PRODUCTION PROCESS

From CAD to certified
in six business days.

REQUEST A QUOTE
01

CAD Intake & DFM Review

STEP / IGES / DXF accepted

Submit your 3D file or 2D drawing. Our engineers run a Design for Manufacturability check within 4 hours — flagging any geometries that require tooling qualification or density upgrades.

4 HRDFM TURNAROUND
02

Material Selection & Quote

14 grades, same-day pricing

Based on payload mass, fragility class (G-rating), and compliance requirements, we recommend the optimal foam grade and deliver a fixed-price quote with lead time commitment.

<2 HRQUOTE DELIVERY
03

CNC Hot-Wire Cut

±0.030" tolerance standard

Billet loaded into 4-axis CNC hot-wire cutter. Cavity profiles machined to CAD nominal. First-article CMM inspection on every new part number before production release.

±0.030"CAVITY TOLERANCE
04

QC, Pack & Certify

MIL-STD-2073 documentation

Visual and dimensional inspection per our IQC plan. Full documentation package generated: material certs, FAI report, packaging data sheet. Ships with cert of conformance.

100%CERT COMPLIANCE
04 / TECHNICAL RESOURCES

The spec sheet before
the sales call.

Engineering depth first. Every resource below is written by the same team that cuts your foam — not a marketing department. Filter by your vertical to see what's most relevant to your qualification process.

FOAM SELECTION GUIDE — 2024 EDITION

38 pages. Covers all 14 foam grades with cushion curves, ASTM/MIL cross-references, and a worked example for each industry vertical.

No spam. Used only to route your inquiry to the right application engineer.

ALL RESOURCES — SELECT VERTICAL TO RANK BY RELEVANCE6 DOCUMENTS
REFERENCE2 pages

Foam Density vs. Fragility Class Reference Chart

Quick-reference matrix mapping payload fragility class (Gn) to recommended foam density and minimum cushion thickness for standard drop heights.

TOOL

Cushion Curve Calculator Tool

Enter payload weight, drop height, and fragility rating. The calculator outputs recommended foam grade, minimum thickness, and expected transmitted G-force.

WHITE PAPER22 pages

ASTM D4169 Drop Test White Paper

Technical overview of Cycle II drop-test methodology, cushion curve interpretation, and how to back-calculate required foam density from payload G-rating.

CHECKLIST8 pages

MIL-STD-2073-1E Compliance Checklist

47-point checklist covering packaging data sheets, material certifications, and first-article inspection requirements for DoD contract packaging.

GUIDE18 pages

FDA 21 CFR Part 820 Packaging Compliance Guide

How to document foam insert specifications in your device history record. Includes template SOPs for incoming inspection and packaging validation protocols.

GUIDE14 pages

ESD Foam Selection Guide for Semiconductor Packaging

Surface resistivity requirements, SEMI standards cross-reference, and foam grade comparison for 200mm and 300mm wafer carrier applications.

05 / COMPLIANCE & CERTIFICATIONS

Your auditor won't
find a gap.

Six standards. Full documentation on every order. When your packaging engineer writes the spec, and your quality manager signs the DHR, every line traces back to a Shield cert number.

CERTIFIED
MIL-STD-2073-1E

DoD Standard Practice for Military Packaging

All defense contract packaging

Full documentation package: PPP-C-843 foam cert, packaging data sheets, first-article inspection reports.

CERT ON FILEGET CHECKLIST →
TESTED
ASTM D4169

Performance Testing of Shipping Containers

Cycle II — 30" edge drop standard

All standard insert profiles pre-qualified. Custom profiles drop-tested on request with full report.

CERT ON FILEGET CHECKLIST →
VALIDATED
ISTA 2A

ISTA Test Procedure for Packaged Products

≤ 150 lbs packaged product

Vibration, shock, and atmospheric conditioning per ISTA 2A protocol. Certificates issued per shipment.

CERT ON FILEGET CHECKLIST →
REGISTERED
ISO 9001:2015

Quality Management System

Design, manufacture, inspection

Registered since 2009. Annual surveillance audit. Certificate #US-QMS-2024-4471.

CERT ON FILEGET CHECKLIST →
COMPLIANT
SEMI E47.1

Mechanical Spec for 300mm Wafer Carriers

Semiconductor front-opening unified pods

Foam insert profiles for FOUP and FOSB qualified to SEMI E47.1 dimensional and ESD requirements.

CERT ON FILEGET CHECKLIST →
DOCUMENTED
FDA 21 CFR 820

Quality System Regulation

Medical device packaging

Device History Record documentation templates, incoming inspection SOPs, and packaging validation protocols available.

CERT ON FILEGET CHECKLIST →
NEED A COMPLIANCE PACKAGE FOR YOUR PROCUREMENT REVIEW?

We generate a complete documentation bundle — certs, data sheets, FAI reports — with every production order.

DOWNLOAD MIL-STD CHECKLIST →