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Alternately, resin casting may be accomplished with a resin plus a nearly equal amount of a "hardener" liquid (as in many epoxy resin or polyester resin systems), which functionally contains a second polymer, for use in forming a final product plastic which is a copolymer. Copolymers contain two different alternating chemical entities in the ...
Chief among these was the introduction of a separate metal framing incorporated into the poured matrix. Figures included in the patent illustrate how Belcher had developed a system for laying thin brass strips of metal across channels in the mosaic pattern prior to assembling the remainder of the mold and pouring in the liquid metal.
Transom windows which could be opened to provide cross-ventilation while maintaining security and privacy (due to their small size and height above floor level) were a common feature of apartments, homes, office buildings, schools, and other buildings before central air conditioning and heating became common beginning in the early-to-mid 20th century.
Modern waterproof glues, especially epoxy resin, have caused revolutionary changes in carvel and clinker construction. Traditionally, nails provided the fastening strength; now it is the glue. It has become quite common since the 1980s for carvel and clinker construction to rely almost completely on glue for fastening.
Preparation of teh tarik involves pouring the tea at great height from one container to another repeatedly A foundry worker watching molten metal being poured out. Pouring is the act of tilting an open container which has liquid or bulk flowable solid inside of it, to cause the contents to flow out of the container under the influence of gravity.
Epoxy granite, also known as synthetic granite, [1] is a polymer matrix composite and is a mixture of epoxy and granite commonly used as an alternative material for machine tool bases. Epoxy granite is used instead of cast iron and steel for improved vibration damping , longer tool life, and lower assembly cost, and thus better properties for ...