What is the best rubber for steam?
Steam looks simple as “hot water”, but I know how fast it can destroy the wrong rubber and shut down a whole line with leaks and safety risks. There is no one “best” rubber for all steam, but in most industrial and HVAC systems a steam-grade EPDM is the first choice, with FKM or FFKM […]
What are neoprene sponge cords used for?
I know many buyers see “neoprene sponge cord” on a spec sheet and still cannot picture where it actually sits in the real product. Neoprene sponge cords are mainly used as soft, compressible seals in doors, hatches, panels, cabinets, HVAC systems, vehicles, and machinery where you need flexible gap filling, water resistance, and vibration damping. […]
What are Neoprene Sponge Cords？
Many buyers see “Neoprene sponge cord” on a drawing or offer list, but they are not sure what it really is or when they should use it instead of solid rubber. Neoprene sponge cords are flexible round profiles made from closed-cell Neoprene® foam. They compress easily, spring back well, and provide water, air, and dust […]
What is the temperature range for ACM rubber?
I know how often drawings say “ACM 70 Shore A” without telling you what temperature it can really survive in the field. Most ACM rubber compounds work roughly from about −20 °C up to +150 °C in continuous service, with short peaks around +170 °C, but exact limits depend on grade, fluid, and design. ACM […]
What is ACM rubber?
I know how confusing it feels when a drawing just says “ACM rubber” and no one on the team can explain what that really means for performance and cost. ACM rubber is an acrylate-based synthetic rubber designed for high-temperature, hot-oil, and automatic transmission environments where standard NBR fails but full fluorocarbon (FKM) is still too […]
Why do rubber seals swell?
I know the shock when you pull out a seal from a test rig and see it swollen, soft, and completely out of tolerance. Rubber seals swell when liquid, gas, or additives penetrate the rubber, attack the polymer network, or extract ingredients, so the material volume, hardness, and dimensions change beyond design limits. Rubber seal […]
What is silicone rubber compound used for?
I know silicone looks simple from the outside, but one compound can end up in coffee machines, EV chargers, baby products, and cleanrooms at the same time. Silicone rubber compound is used for seals, gaskets, hoses, cable insulation, keypads, medical and food-contact parts, and many high-temperature or hygienic components that need long-term flexibility and stability. […]
What‘s the Differences Between Precipitated And Fumed Silicone Rubber?
I know the confusion when a compounder tells you “this is fumed silicone” or “this is precipitated silicone” and you wonder what that really changes in your part. Precipitated and fumed silicone rubber mainly differ in the silica filler they use. Fumed silica gives higher strength, better transparency, and higher cost. Precipitated silica gives easier […]
Top 10 Rubber Product Defects & Proven Fixes
I know the pain when you open a carton, cut a few samples, and discover defects that kill your schedule and your customer’s trust. The top 10 rubber product defects usually come from trapped air, porosity, flash, short shots, surface burns, contamination, dimensional drift, hardness variation, and poor compression set. Each defect has clear process […]
What Causes Voids Inside Rubber Parts?
I know the sinking feeling when you cut a rubber part for inspection and see an ugly void staring back at you from the middle. Voids inside rubber parts usually come from trapped air, moisture, poor flow, wrong cure profile, or volatile contamination. The root cause is a mix of part design, compound design, and […]
