Polyurethane Catalyst PC-41: The Unsung Hero of Shipshape Insulation (and Avoiding a Titanic-Sized Disaster) 🚢 Let’s talk about insulation. Not the kind where you wrap yourself in a blanket and binge-watch Netflix (though that’s important too!). We’re talking about the industrial-strength, keep-the-heat-in (or out!) kind that’s crucial for, say, keeping a ship’s engine room from...