Production molds are six-figure assets that spend their entire working life inside someone else’s building. You paid for it, your name is on the invoice, and you may never touch it. That arrangement works fine — right up until the shop holding it stops answering the phone.
Some mold makers are going to close or file for bankruptcy, and when they do, your tooling is suddenly a block of steel sitting →
A cracked mold actually creates two different repair bills.
The first one shows up as an invoice; that repair quote you can read and authorize.
The second “bill” never gets itemized, but it shows up in the shots you didn’t run, the ship date you missed, the customer who started asking pointed questions in week three.
If your molder doesn’t build tools in-house, that second bill is where the bulk of the money →
Ask three molders to define overmolding, and you might get three different answers. None of them wrong, exactly, but that’s the problem.
The terms overmolding and insert molding are used interchangeably across the industry, and no governing body has settled the issue.
That means when you go to spec your next part and say ‘overmolding,’ the shop on the other end might be hearing something entirely different.
Here’s how we make this call →
Most pre-tooling DFM reviews are checklists with engineering letterhead. They confirm the part can be molded without breaking the tool, and stop there. That’s not the question you needed answered.
A real review and a liability screen produce reports that look nearly identical — until 60,000 shots into production, when a weld line cracks through a structural zone nobody flagged.
The gap is specific, learnable, and directly observable. Here’s what rigorous looks →
We don’t give names to our injection molds, but if we did, some would be the legendary regulars — coasting into the shop at dawn, churning out perfect parts, always earning their five stars. And others? Let’s just say they’d be leaving unhinged voicemails for management if they could.
The truth is, all injection molds tell their own story, usually far juicier than anything you’ll hear at the morning production huddle. →
In the world of plastic injection molding, there’s nothing quite like the satisfying clunk of a legacy mold churning out new parts as if it’s thumbing its nose at the calendar.
At H&H, we don’t see legacy tooling as a dusty liability or a relic to be quietly scrapped—if you know what you’re doing, that “old iron” can beat brand-new builds for speed, cost, and ROI. The magic is in understanding →
You know that feeling when you keep making excuses for someone else’s mistakes, telling yourself it’ll get better—maybe after the next run, maybe after the next mold design tweak? Stop doing that.
When your molder turns your supply chain into a soap opera, it’s not just drama—it’s affecting your bottom line.
Face the truth: not all relationships are meant to last, especially not the one standing between you →
A mold never fails when it’s convenient. It fails on a Friday night, with a truck slot booked, labor scheduled, and your customer breathing down your neck. In that moment, you don’t want a brochure claim — you want a warranty that actually keeps you running.
The catch? Not all warranties mean the same thing, and not all promises are anchored to reality.
If you understand how molds are →
If you hang around enough mold shops, you’ll hear the same argument play out again and again.
Some folks swear by simulation as if it were gospel; others roll their eyes and point to the stack of plastic parts on the bench that turned out just fine without a single line of Moldflow code.
Here’s the straight truth: simulation is just one tool—no more, no less. It’s not a badge of honor →
You’ve seen it before: a new product idea hits the whiteboard, everyone’s excited, and suddenly the engineering team is off to the races building the next Swiss Army knife. Six months later, you’re drowning in features nobody asked for, the budget’s gone, and your so-called prototype is still glued to the test bench.
Welcome to the prototype paradox—where over-engineering early doesn’t make you smarter, it quietly murders your product →
H&H Molds, Inc.
119 S. Adams Rd.
Spokane Valley, WA 99216
Phone: 509-924-3770
Fax: 509-924-4174
