Princeton Case Company · Since 1964
Custom Carrying Cases and Custom Foam Interiors
Four families of cases, all available with a foam interior cut for your product. Start from more than 100 standard sizes with no custom mold charge, or tell us what you are protecting and we will spec a case around it.
Blow Molded Carrying Cases
Double-wall HDPE · Classic, Premier and Injection Molded lines
Thermoformed Carrying Cases
40 standard sizes · mitered, radius or ribbed corners
Heavy Duty Watertight Cases
24 models · MIL-C-4150J Water- and Dust-tight
Soft Sided Carrying Cases
Custom designed · Cordura, ballistic nylon, canvas, vinyl & other materials
Custom foam interiors
The case is only half the job
What actually protects your product is the interior. We spec the case and the foam together and supply them on one order, instead of leaving you to buy a shell from one company and an insert from another.
- Custom die-cut foam cut to your part, in polyurethane or polyethylene
- Cubed and layered foam when the contents change from job to job
- Molded inserts and panel-mounted flanges for instruments and test kits
- Adjustable padded dividers, straps and pockets for Soft Sided cases
New to this? Start with our guide to choosing custom foam inserts or read how foam is cut for protective cases.
Why buy from Princeton Case
One company, one order, one phone number
Buying a protective case usually means juggling a case supplier, a foam house and a designer. We handle all of it, and we have been doing it since 1964.
We help you spec it
Six decades of case work means we can usually tell you which case style, size and foam interior will suit your product from a photo and a set of dimensions — including whether a standard size will save you a mold charge.
We source it for you
Molded shells, sewn cases, die-cut foam, hardware, logos and labels all come through us on a single order, so you are not chasing four vendors and hoping the parts fit each other.
You get one point of contact
One quote, one purchase order and one person to call when a dimension changes or you need the same case again in two years.
What our cases carry
Electronics and test kits, medical instrumentation, tools, cameras, field gear and OEM products that ship inside someone else’s box.
Laptops & computers Medical equipment Tools Camera equipment Business equipment OEM & private label Trade shows
How a Princeton Case carrying case comes together
1
Tell us what you are protecting
Dimensions, weight, how fragile it is and how it travels. A photo or a drawing is usually enough — here is how to measure it.
2
We recommend a case
Where a standard size fits, you use existing tooling and pay no mold charge. Custom tooling only when nothing standard will do.
3
We spec the interior
Die-cut foam, a molded insert or a panel-mounted flange layout, worked out around your parts rather than around a stock cavity.
4
We put it into production
Case, foam, hardware and branding are ordered and managed together, then the finished cases ship to you.
Common questions
Do I have to pay for a custom mold?
Only if nothing standard fits. Our Blow Molded Classic and Premier lines, 40 Thermoformed sizes and 24 Watertight models all run on existing tooling, so there is no custom mold charge. Most projects start with a standard shell and a fully custom foam interior — our guide to whether you actually need a custom mold walks through how to check.
What is the difference between Blow Molded and Thermoformed cases?
A Blow Molded case is formed as one piece with a double wall, which builds shock absorption into the shell itself and stands up to rough handling. A Thermoformed case uses a formed shell that is lighter and comes in the widest range of footprints we stock, with mitered, radius or ribbed corners. If you are weighing the two, our guide to choosing a type of custom carrying case walks through it.
Do you supply the foam interiors too, or do I source those separately?
You get both from us on one order. Custom die-cut polyurethane and polyethylene interiors, cubed and layered foam, molded inserts, panel-mounted flanges and adjustable padded dividers are all specified alongside the case, so the interior is designed for that exact shell.
Are the Watertight cases really submersible?
Our Heavy Duty Watertight cases are engineered to the MIL-C-4150J Water- and Dust-tight standard and are resistant to corrosion, UV, solvents, fungus and impact damage (MIL-STD-810F). They include an automatic ambient pressure equalization valve to MIL-STD-648C and TSA-accepted key-locking latches.
Can we put our logo and colors on the case?
Yes. On molded cases we offer hot stamping, engraving, printing, adhesive and in-mold labels, logo plates and in-mold decorating, plus custom colors. On Soft Sided cases we offer screen printing, embroidery, embossed leather, gold and silver stamping, woven patches and clear card holders. See all the branding options.
How small an order will you take?
It depends on the case style and how much customization is involved, so it is worth asking. Standard sizes with a die-cut foam interior are the most flexible starting point, and buying in volume changes the calculation. Send us the details and we will tell you where you stand.