O-rings are very commonly found in pumps, cylinders, connectors and valves, helping to seal joins between separate parts and prevent leaking of fluids and gases. They’re used with static, dynamic, hydraulic and pneumatic components, making them an especially versatile solution to a very widespread engineering issue. Klippel, L., St. George, S., Büntgen, U., Krusic, P. J. & Esper, J. Differing pre-industrial cooling trends between tree rings and lower-resolution temperature proxies. Clim 16, 729–742 (2020).

Stoffel, M. et al. Estimates of volcanic-induced cooling in the Northern Hemisphere over the past 1,500 years. Nat. Geosci. 8, 784–788 (2015). ARC Centre of Excellence for Australian Biodiversity and Heritage, University of NSW, Sydney, Australia period (more than 10 seconds) means the waves at the beach may be more powerful. Lifeguards can give you Humidity is the amount of water vapor in the air. If there is a lot of water vapour, the humidity will beHigh-temperature sealing o-rings are, as the name implies, designed to withstand extreme heat while continuing to provide a reliable seal between two surfaces or components. Zheng, Y.; Lan, Z.; Cao, K. A new insight of temperature distribution on superhydrophilic surface horizontal tubes falling film at low spray density. Int. Comm. Heat Mass Transf. 2018, 91, 17–22. [ Google Scholar] [ CrossRef] Frank, X.; Perré, P.; Li, H.Z. Lattice Boltzmann investigation of droplet inertial spreading on various porous surfaces. Phys. Rev. E 2015, 91, 052405. [ Google Scholar] [ CrossRef] Our unique ultra-low temperature TRPlast™ perfluoroelastomer ‘O’ ring material, LT-45 FFKM, provides the widest possible range for dynamic sealing. Even in extreme temperatures as low as -45 °C for continuous operation. Make TRP Polymer Solutions your trusted expert of choice for ultra-low temperature elastomeric seals.

Two standout material categories excel in chemical and temperature resistance: Perfluoroelastomers (FFKM) and PTFE. Both contain high molecular weight of carbon and fluorine, imparting strong polymer durability. Yet, FFKM and PTFE differ significantly in mechanical attributes. PTFE is a rigid thermoplastic, while FFKM falls into the thermoset elastomer classification. Thermoplastics can be melted and reshaped, while thermosets maintain their initial form. FFKM essentially combines FKM and PTFE, uniting elastomeric features with remarkable chemical resilience and heat resistance. State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China The arrow shows the direction the wind is blowing. The letters show the direction the wind is blowingGrinding wheels – we provide specialty glass frits used to create vitrified bonds that help embed and bind abrasive grains together in traditional and highly abrasive grinding wheels. Our glass frits enable a proper bond designed to impart hardness, strength and optimal ability for efficient cutting. Wilson, R. et al. Reconstructing ENSO: the influence of method, proxy data, climate forcing and teleconnections. J. Quat. Sci. 25, 62–78 (2010). Vibrantz offers the highest purity dental pigments with a full palette of stains for dental ceramics that meet the most stringent requirements for heavy metal content and radioactivity. The chromaticity offered by our dental pigments provides extremely high flexibility in dental ceramic coloring. To achieve a natural appearance in dental ceramics, our dental pigments cover a complete spectrum from opaque to transparent in different color intensities and shades that include yellow via brown, pink, and blue.