What Is a Tightness Test for Rubber Hose?
A hose can look strong and still leak at the crimp, the liner, or the bend. A small leak can stop an entire system. A tightness test for a rubber hose checks whether the hose and its end fittings can hold pressure without unacceptable leakage under defined conditions like pressure, time, temperature, and test media. […]
What is the rubber quality control test?
Many rubber parts look fine to the eye, but fail in service because nobody tested the right things before shipment. Rubber quality control tests are a set of standard lab and production checks that verify material, dimensions, and performance, so every batch of rubber parts works safely and consistently in real applications. Rubber quality control […]
What is the TGA test for rubber products?
Many rubber parts look similar, but the compound inside can be totally different and even unknown. The TGA test (thermogravimetric analysis) for rubber measures weight loss of a sample as temperature rises, so we can understand polymer type, fillers, volatiles, and thermal stability in a rubber compound. Thermogravimetric analysis of rubber When I work with […]
What are the tensile tests for rubber?
Many rubber parts fail not because of hardness, but because the material cannot stretch and recover as the design expects. Tensile tests for rubber measure how much force and stretch a rubber sample can take before it breaks, so engineers and buyers can judge strength, flexibility, and safety margins for real applications. Tensile testing of […]
Is silicone steam proof?
Many engineers think silicone is “magic” and will survive any heat and steam. I know how painful it is when that belief ends in leaks and unplanned shutdown. Silicone is not fully steam proof. It works in mild, low-pressure steam and short cycles, but in long-term, high-pressure steam it ages much faster than in dry […]
Is EPDM good for steam?
Steam looks harmless as “hot water”, but I have seen it destroy the wrong rubber gasket in a few weeks and stop a boiler or HVAC system. EPDM is usually very good for low- to medium-pressure saturated steam up to around 150 °C, if you use a steam-grade compound and keep it away from oils, […]
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 […]
