Custom Foam Products
At Foam Molders & Specialties, custom foam products are foam parts we manufacture to your exact dimensions, density, and material specification. We’ve been doing this in Cerritos, California since 1971: die-cut packing inserts, CNC-routed instrument cavities, closed-cell gaskets, acoustic insulation, vacuum-formed plastic enclosures, and FAA-compliant aerospace interiors. With in-house tooling and a 55,000 sq ft fabrication facility, we run anything from 50-piece prototype lots to 100,000-unit annual programs.
What We Make
Our custom foam products fall into four broad categories, chosen based on the part and the application.
Foam fabrication covers die-cut, CNC-routed, hot-wire-cut, and laminated foam parts: foam packing materials, instrument trays, gaskets, acoustic insulation, anti-vibration mounts, and convoluted (egg-crate) foam.
Vacuum forming handles large, simple plastic parts. Think equipment housings, interior panels, machine guards, and packaging trays. (See our vacuum forming services for details.)
Pressure forming is for high-detail plastic enclosures with tight tolerances and textured surfaces. Most of these end up as medical device housings, electronics enclosures, or aesthetic parts. (See our pressure forming services.)
Custom painting covers production paint, EMI/RFI shielding, and protective coatings on plastic and metal substrates. (See our custom painting capability.)
Many programs combine two or three of these. A typical one might be a vacuum-formed housing with a die-cut foam interior and a custom painted exterior.
Foam Types We Carry
| Foam Type | Common Densities | Best For |
|---|---|---|
| Polyethylene (PE) | 1.7 – 6.0 lb/ft³ | Shipping inserts, tool cases, impact protection |
| Cross-linked PE (XLPE) | 2.0 – 4.0 lb/ft³ | Visible-facing inserts, retail packaging |
| Polyurethane (PU, open cell) | 1.0 – 2.5 lb/ft³ | Cushioning, acoustic, surface protection |
| Polyurethane (PU, closed cell) | 2.0 – 8.0 lb/ft³ | Gaskets, weather seals, vibration dampening |
| Anti-static (pink) PE | 1.7 – 4.0 lb/ft³ | Electronics, PCBs, ESD-sensitive devices |
| Conductive (black) PE | 1.7 – 2.2 lb/ft³ | High-sensitivity electronics, military |
| Neoprene / EPDM | 4.0 – 12.0 lb/ft³ | Outdoor gaskets, thermal and UV resistance |
| Melamine | 0.5 – 0.7 lb/ft³ | Acoustic insulation, sound absorption panels |
Industries We Serve
We’ve been delivering custom foam products to engineering and manufacturing teams for over 50 years. Our active customer base spans five core sectors.
Medical and life sciences: diagnostic equipment housings, surgical instrument trays, sterilization-compatible inserts, FDA-compliant materials.
Aerospace and defense: FAA FST-compliant interiors, MIL-STD-rated packaging, FOD-control inserts, and tooling cases for calibrated equipment.
Electronics and instrumentation work covers ESD-safe packaging, server component shipping, cleanroom tool organizers, and branded retail packaging.
Automotive and transportation programs include interior trim, sound-deadening panels, gaskets, and EV battery thermal management.
Industrial and OEM customers come to us for returnable packaging programs, calibration cases, machined-part protection, and vibration mounts.
Manufacturing Capabilities
Our 55,000 sq ft facility in Cerritos, California houses production equipment for every major foam and plastic forming process under one roof:
- Die cutting on steel-rule and matched-metal dies, throughput 200–1,000 units per hour
- 5-axis CNC routing for deep, complex, and multi-level cavities
- Hot wire cutting for vertical and angled cuts through thick foam blocks
- Compression slitting for sheet stock at 1/8″ to 4″ thicknesses
- Vacuum forming up to 96″ × 48″ × 36″ deep
- Pressure forming up to 96″ × 48″ × 24″ deep, with tooling pressures to 100 PSI
- Production paint line with EMI/RFI shielding capability
- Laminating, edge-finishing, embossing, and printing
In-house tooling means we design the die, machine the aluminum, and run first-article parts without sending tooling out. That typically compresses program timelines by two to four weeks compared to multi-vendor sourcing.
Quality and Certifications
Quality programs are tailored to the industry. Standard documentation includes:
- First-article inspection (FAI) reports per AS9102 for aerospace customers
- Material certificates of compliance (CoC) for all production lots
- Process Failure Mode and Effects Analysis (PFMEA) for medical and aerospace programs
- ISO 9001-aligned quality management system, with full traceability from raw material to shipped lot
- Customer-specific PPAP packages on request for automotive and OEM programs
For regulated industries, we run dimensional inspection at three steps: tooling first-article, production first-article, and ongoing lot sampling. Documentation is retained for the program lifetime.
From Quote to Delivery
Most custom foam product programs follow the same path from initial inquiry to first production lot.
Quote stage: you submit drawings, target volume, and material requirements. We return tooling cost, per-piece cost, and lead time within 3 to 5 business days for most projects.
Tooling stage: design approval, then mold or die manufacturing. 2 to 4 weeks for die cutting, 4 to 8 weeks for thermoforming tooling.
First article: sample parts produced and inspected, with a dimensional report sent for approval. 1 to 2 weeks.
Production: full lot manufacturing on approval. 2 to 4 weeks per lot depending on quantity.
Ongoing: call-offs against blanket POs, quality reports, and continuous-improvement tracking.
Faster turn is possible on prototype quantities, where we can skip the production tooling step and CNC-route parts directly from sheet stock.
Custom vs. Off-the-Shelf Foam Products
Off-the-shelf foam products (stock-sized sheets, bubble wrap, generic pre-cut inserts) work for low-stakes applications. They start to fail when the part is heavy, fragile, expensive, sensitive to orientation, or shipped in volume.
Custom foam products solve that with a part-specific cavity, density, and material chosen for the application. The trade-off is upfront tooling cost (typically $300 to $3,000) and a longer first-lot lead time. The payback math depends on three factors: damage rate with stock packaging, value of the product being protected, and annual unit volume. For most programs we see, custom foam tooling is paid off within the first year of production when the protected product is worth more than a few hundred dollars and ships in quantity.
Featured Capabilities
Foam Fabrication
Die cutting, CNC routing, hot wire cutting, and laminating. Custom packing materials, instrument trays, gaskets, and acoustic insulation across all major foam types.
Pressure Forming
High-detail plastic enclosures with tight tolerances (±0.010″) and textured surfaces. Medical device housings, electronics enclosures, and aesthetic parts at lower tooling cost than injection molding.
Vacuum Forming
Large or simple plastic parts: equipment housings, interior panels, machine guards, packaging trays. Lower tooling cost and shorter lead times than pressure forming for parts where surface finish is less critical.
Frequently Asked Questions
What custom foam products do you make?
Foam Molders & Specialties produces custom foam parts across four categories: foam fabrication (die-cut and CNC-routed inserts, gaskets, acoustic and packing foam), vacuum forming (large plastic housings and panels), pressure forming (high-detail plastic enclosures with tight tolerances), and custom painting. Most programs combine two or three of these. A typical example is a vacuum-formed housing with a die-cut foam interior and a painted exterior.
What's the minimum order quantity?
There isn’t a strict minimum. For prototype work we run lots of 25 to 100 pieces, usually CNC-routed directly from sheet stock to skip the tooling step. For production, the breakeven where dedicated tooling (die or matched-metal) wins on per-piece cost is typically 500 to 1,000 units a year, depending on the part.
How long does a typical custom foam program take?
From signed PO to first delivered lot, expect six to twelve weeks for foam fabrication and ten to sixteen weeks for thermoforming programs. Most of that time is tooling: two to four weeks for die cutting and four to eight weeks for vacuum or pressure forming molds. Prototype programs can ship in two to three weeks because no production tooling is required.
Can you handle large-volume production runs?
Yes. Our die-cutting equipment produces 200 to 1,000 units per hour, and our largest active program ships over 100,000 pieces annually. For higher volumes, we run multi-shift operations and use matched-metal tooling for the longest tool life and tightest part-to-part consistency.
What foam materials do you stock?
We stock the full range of polyethylene (1.7, 2.2, 4.0, 6.0 lb/ft³), cross-linked polyethylene, polyurethane (open and closed cell), anti-static and conductive ESD-safe foams, neoprene, EPDM, and melamine acoustic foam. For thermoforming, we stock ABS, HIPS, polycarbonate, PETG, Kydex, and TPO sheet stock in standard gauges.
Do you provide design support or do customers send finished drawings?
Both. Roughly 40 percent of our programs come in as finished engineering drawings. The remaining 60 percent start as a problem statement and a part to protect or enclose. We help with material selection, cavity design, draft angles, tolerance analysis, and tooling design. Design support is included in the program; we don’t bill separately for it on production programs.
What industries do you typically serve?
Medical and life sciences (diagnostic equipment, surgical instruments), aerospace and defense (FAA FST interiors, MIL-STD packaging), electronics and instrumentation (ESD-safe shipping, server components), automotive (interior trim, sound deadening, EV battery components), and industrial OEM (returnable packaging, calibration cases). We work with both Fortune 500 OEMs and emerging-stage hardware companies.
Where are you located and do you ship nationwide?
Our 55,000 sq ft manufacturing facility is in Cerritos, California, about 20 miles south of Los Angeles. We ship throughout the United States and to international customers. Most production programs ship from our facility on a customer-specified schedule; some long-running programs use scheduled lot releases against a blanket purchase order to manage inventory.
Working on a project that needs custom foam products? Send us drawings, target volumes, and the application context. We’ll come back with material recommendations, tooling cost, and a per-piece quote within a week.