A water resistant sealing material suitable as a gasket or valve seal is described. The sealing material comprises modified chemically exfoliated vermiculite (CEV) in a proportion of 30-70% w/w sealing material and a filler in a proportion of 70-30% w/w sealing material, and optionally other additives in a proportion of 0-10% w/w sealing material. The modified CEV comprises water resistance enhancing monovalent cations. The sealing material is particularly useful to provide improved water resistance in gaskets and valve seals.

The disclosure relates to sealant compositions for forming hermetic seals, methods of use, and hermetically sealed products. The sealant compositions comprise a first inorganic oxide chosen from at least one of MgSiO.sub.3, MgO, MgTiO.sub.3, CaO, and CaSiO.sub.3, a second inorganic oxide chosen from SiO.sub.2, at least one solvent, and optionally at least one organic resin binder.

In an exhaust pipe spherical joint X, a spherical annular seal member 36 is fitted and fixed to a pipe end portion 42, the spherical annular seal member 36 is seated by abutting against a flange 43, a flared portion 47 formed of an FeCr base stainless steel and containing 17.00 to 19.00% by mass of Cr is secured to a downstream-side exhaust pipe 44, and an inner surface 48 of a concave spherical surface portion 45 is brought into slidable contact with a composite surface 40 in which a surface 38 constituted by a reinforcing member 5 and a surface 39 constituted by a solid lubricant are present in mixed form in an outer surface 37 of an outer layer 35 of the spherical annular seal member 36.

An anti-oxidation dipping treatment method for a graphite sealing element for a thermal power generation unit, and an anti-oxidation production line. The anti-oxidation dipping treatment method for a graphite sealing element for a thermal power generation unit comprises the following steps: S1, placing a graphite sheet into a soaking device for soaking; S2, conveying the soaked graphite sheet into a drying and curing device for drying and curing; S3, stacking the multiple dried and cured graphite sheets together, and subjecting same to compression molding to form a layered graphite body; and S4, stamping the layered graphite body to form a finished graphite sealing element with a desired appearance.

The present invention relates to composite sealing materials for a gasket. The gaskets are useful in solid oxide fuel/electrolyser cells (SOFC and SOEC). The fuel cell gaskets contain sealing material based upon chemically exfoliated vermiculite that has improved corrosion resistance. The sealing material comprises chemically exfoliated vermiculite; filler; and insoluble carbonate.

A vacuum insulating panel may include: a first substrate; a second substrate; a plurality of spacers provided in a gap between at least the first and second substrates, wherein the gap is at pressure less than atmospheric pressure; and a seal (e.g., edge seal) provided at least partially between at least the first and second glass substrates. Elements such as edge seal materials and/or dimensions are configured to improve thermal performance and to increase the Condensation Resistance Factor for glass (CRF.sub.G) for the panel, so as to provide for a panel with a reduced likelihood to accumulate condensation in the field.