What Is Polyester? A Complete Guide to the Fabric
At its simplest, polyester is a synthetic polymer—a type of plastic—that is most commonly known as a fabric used in clothing, home furnishings, and industrial applications. It is the single most-used fiber in the world, surpassing even cotton, prized for its exceptional durability, wrinkle resistance, and ability to wick moisture away from the skin. When […]
How Many Types of Coating Are There? A Guide
When someone asks, “How many types of coating are there?” the honest answer is that it’s the wrong question. There is no single, universally agreed-upon number. The world of coatings is so vast and diverse that asking for a number is like asking, “How many types of food are there?” The answer depends entirely on […]
Top Manufacturing Companies in China: A Guide
As someone who has spent years navigating the complexities of the global supply chain, I know that the question “Who are the top 10?” is both simple and profoundly difficult. “Top” by what metric? Revenue? Employee count? Innovation? Global impact? A list that includes a state-owned steel behemoth alongside a nimble electronics contractor can be […]
What Is ABS? The 3 Meanings Explained (Brakes, Plastic, & Abs)
So, what is ABS? Simply put, the acronym “ABS” most commonly stands for one of three completely different things: Anti-lock Braking System: A crucial safety feature in cars, motorcycles, and other vehicles that prevents wheels from locking up during hard braking. Acrylonitrile Butadiene Styrene: A strong, versatile, and common thermoplastic polymer (a type of plastic) used in […]
PETG vs PLA: Which Filament Should You Use?
For anyone involved with Fused Deposition Modeling (FDM) 3D printing, the first major material decision you’ll face is choosing between the two titans of the industry: PETG and PLA. This choice can define the success or failure of your project, so the question is critical. So, is it better to print in PLA or PETG? […]
An Engineer’s Guide to High-Density Polyethylene (HDPE): 10 Everyday Examples
The Quick Answer: What is an Example of HDPE? The most common everyday example of High-Density Polyethylene (HDPE) is a milk jug. Other ubiquitous examples include laundry detergent bottles, plastic cutting boards, children’s toys, and the durable black pipes used for water mains. HDPE is identified by the #2 recycling symbol. It is chosen […]
Aluminum Melting Point: The 660℃ vs 2072℃Trap
Ask a student: “What is the melting point of Aluminum?” They will check a textbook and say: “660.3°C (1220°F).” Ask a welder or a machinist the same question. They will sigh and tell you: “It’s complicated.” On paper, Aluminum has a low melting point (compared to Steel’s 1500°C). It should be easy to melt, cast, […]
HDPE Machining: Why It’s Tough, Slippery, and Impossible to Glue
If you walk into any food processing plant in California, look at the cutting boards. They are white, scratched up, and virtually indestructible. That is HDPE (High-Density Polyethylene). If you look at the piping under a chemical tank. That is also HDPE. At RapidManufacturing, we love HDPE for its toughness and chemical resistance. But my […]
How to Estimate Tensile Strength from Hardness (The Shop Floor Formula)
In a perfect world, we would perform a destructive Tensile Test (ASTM E8) on every single batch of metal that enters the shop. We would pull a sample until it snaps and get precise data. In the real world? We don’t have time (or money) to destroy perfectly good parts. Instead, we use Hardness Testing. […]
Top 10 Metal Fabricators in Los Angeles: An Insider’s Review
Los Angeles is the manufacturing capital of the West Coast. From the aerospace hubs in El Segundo to the medical device startups in Irvine, there is no shortage of demand for metal parts. And if you open Google Maps, there is no shortage of supply. Search for “Metal Fabricator” and you will see hundreds of […]
