A method of coating a field joint and a coated field joint formed thereby. The field joint coating includes a first thermal insulation material injection molded over the uncoated field joint to form a first layer, and a second thermal insulation material injection molded over the first layer to form a second layer. The second material has a greater flexibility than the first material and a lower maximum operating temperature than the first material. In certain embodiments, the second material forms a significant part of the volume of the field joint coating.

A method of forming a fin configured for use with a water sports board. The method includes providing a mold having a mold cavity and first and second insert pre-preg sheets each including structural strands respectively bonded by first and second resin materials. The method further includes placing the insert pre-preg sheets within the mold cavity. The method further includes injecting a third resin material under pressure into the mold cavity between the first insert pre-preg sheet and the second insert pre-preg sheet to urge the first insert pre-preg sheet and the second insert pre-preg sheet away from each other and towards respective ones of the pair of mold cavity faces, and dispose the third resin material between the first insert pre-preg sheet and the second insert pre-preg sheet to space at least a portion of the first insert pre-preg sheet from the second insert pre-preg sheet.

An object of the present invention is to manufacture an integrated molded component formed by bonding a fiber-reinforced thermosetting resin structural member having a hollow or solid columnar portion and another resin structural member with high productivity and in a strong bonded state. The present invention for solving the above problems is to provide an integrated molded component formed by bonding a structural member (a) consisting essentially of a fiber-reinforced thermosetting resin and having a hollow or solid columnar portion and a resin structural member (b), in which the resin structural member (b) has an overlap region overlapping an outer peripheral surface and/or an inner peripheral surface of the hollow columnar portion or the solid columnar portion of the structural member (a), and is bonded to the structural member (a) via a thermoplastic resin in at least a portion of the overlap region.