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2. Seam sealant - Wikipedia

   en.wikipedia.org/wiki/Seam_sealant

   Seam sealing was already performed manually successfully for preventing perforation corrosion in the 1980s. [1] Today used in the OEM automotive industry primarily for the purpose of seals against air leaks and to waterproof sheetmetal overlaps that occur in the assembly of a vehicle. Such overlaps are typically decorative rather than ...

3. Adhesive - Wikipedia

   en.wikipedia.org/wiki/Adhesive

   There are two types of adhesives that harden by drying: solvent-based adhesives and polymer dispersion adhesives, also known as emulsion adhesives. Solvent-based adhesives are a mixture of ingredients (typically polymers) dissolved in a solvent. White glue, contact adhesives and rubber cements are members of the drying adhesive family. As the ...

4. Sealant - Wikipedia

   en.wikipedia.org/wiki/Sealant

   Natural sealants and adhesive-sealants included plant resins such as pine pitch and birch pitch, bitumen, wax, tar, natural gum, clay (mud) mortar, lime mortar, lead, blood and egg. In the 17th century glazing putty was first used to seal window glass made with linseed oil and chalk, later other drying oils were also used to make oil-based ...

5. Seal (mechanical) - Wikipedia

   en.wikipedia.org/wiki/Seal_(mechanical)

   Adhesive, sealant; Bodok seal, a specialized gas sealing washer for medical applications; Bonded seal, also known as Dowty seal or Dowty washer. A type of washer with integral gasket, widely used to provide a seal at the entry point of a screw or bolt [2] [3]

6. Polyurethane - Wikipedia

   en.wikipedia.org/wiki/Polyurethane

   Polyurethane synthesis, wherein the urethane groups −NH−(C=O)−O− link the molecular units A kitchen sponge made of polyurethane foam . Polyurethane (/ ˌ p ɒ l i ˈ jʊər ə ˌ θ eɪ n,-j ʊəˈr ɛ θ eɪ n /; [1] often abbreviated PUR and PU) refers to a class of polymers composed of organic units joined by carbamate (urethane) links.

7. Bondo (putty) - Wikipedia

   en.wikipedia.org/wiki/Bondo_(putty)

   Bondo is a polyester putty product originally marketed as an automotive body filler. Nowadays the brand name is used by 3M for a line of American-made products for automotive, marine and household repairs. [1] [2] The term Bondo is trademarked by 3M, but is commonly used to refer to any brand of automotive repair putty due to its popularity.