A boat includes an inner hull layer an outer hull layer. Each layer includes a deck, a starboard side, a port side, and a stern. Each layer is assembled from flat sections. The boat further includes a waterproof layer located between the inner and outer hull layers. Each layer can be disassembled for boat storage purposes.

Waterproof engineered floor and wall planks have a veneer layer bonded with a plastic composite core, and an underlayer, preferably an underlayer of cork.

Waterproof engineered floor and wall planks have a veneer layer bonded with a plastic composite core, and an underlayer, preferably an underlayer of cork.

A skateboard deck with multiple layers constructed from multiple materials is disclosed. Embodiments for design and manufacture are disclosed.

Boards have a mineral content, including magnesiumoxychloride and/or magnesiumoxysulphate, and may be finished with a DPL laminate decorative layer.

Boards have a mineral content, including magnesiumoxychloride and/or magnesiumoxysulphate, and may be finished with a DPL laminate decorative layer.

The present disclosure generally relates to systems and methods for composites, including short-fiber films and other composites. In certain aspects, composites comprising a plurality of aligned fibers are provided. The fibers may be substantially aligned, and may be present at relatively high densities within the composite. For example, the composite may include substantially aligned carbon fibers embedded within a thermoplastic substrate. The composites may be prepared, in some aspects, by dispersing fibers by neutralizing the electrostatic interactions between the fibers, for example using aqueous liquids containing the fibers that are able to neutralize the electrostatic interactions that typically occur between the fibers. The liquids may be applied to a substrate, and the fibers may be aligned using techniques such as shear flow and/or magnetism. Other aspects are generally directed to methods of using such composites, kits including such composites, or the like.

A sandwich component comprising: (i) a first main surface with a first cover layer and a second main surface with a second cover layer, the first cover layer and/or second cover layer having an opening, weakening, or marking in a lateral region and/or is provided with the same, (ii) at least one intermediate layer positioned between the first and second cover layers, and (iii) a polymer composition which is arranged between the first and the second cover layers substantially within the intermediate layer and/or in the region of the opening, weakening, or marking. A mechanical connection mechanism is fixed, or can be fixed, directly in the polymer composition through the first cover layer and/or the second cover layer and/or in the lateral region in the region of the opening, weakening, or marking so as to pass through the first cover layer and/or the second cover layer and/or the lateral region.

A sandwich component comprising: (i) a first main surface with a first cover layer and a second main surface with a second cover layer, the first cover layer and/or second cover layer having an opening, weakening, or marking in a lateral region and/or is provided with the same, (ii) at least one intermediate layer positioned between the first and second cover layers, and (iii) a polymer composition which is arranged between the first and the second cover layers substantially within the intermediate layer and/or in the region of the opening, weakening, or marking. A mechanical connection mechanism is fixed, or can be fixed, directly in the polymer composition through the first cover layer and/or the second cover layer and/or in the lateral region in the region of the opening, weakening, or marking so as to pass through the first cover layer and/or the second cover layer and/or the lateral region.

A sound damping wallboard for installation on an installed wallboard, a sound damping wallboard system, and a method of constructing a sound damping wallboard on a building structure are disclosed. The sound damping wallboard includes a gypsum layer having a gypsum layer inner surface and a gypsum layer outer surface, a first sound damping layer disposed at the gypsum layer inner surface and having a first sound damping layer inner surface opposite the gypsum layer inner surface, a first encasing layer disposed at the gypsum layer outer surface, a second encasing layer disposed at the first sound damping layer inner surface, and a second sound damping layer disposed at the second encasing layer opposite the first sound damping layer inner surface.