• resin
  • There are many different polyurethane blends and resin types, which vary in durability, resistance to heat, ambient humidity, and light, and the maximum temperature they will stand (some, for medical use, are autoclavable). (wikipedia.org)
  • Polyurethane is a type of varnish with a resin that adds heat-, scratch-, water- and solvent resistance to the wood on which it's applied. (ehow.com)
  • Polyurethane resin is used as an aesthetic flooring material. (wikipedia.org)
  • The polyurethane resin should be sourced from a manufacturer who can demonstrate that they have BS EN 9001 quality management standards. (wikipedia.org)
  • The resin-bound aggregate mix will generally be a mix of natural aggregates that must be kiln dried to prevent moisture coming in contact with polyurethanes and causing discolouration and poor performance. (wikipedia.org)
  • The resin sourced should be a two-part, quality-controlled polyurethane or similar with the activator added during the manufacturing process to eradicate mistakes on site made by operatives who are not qualified chemists. (wikipedia.org)
  • The usage of higher-quality polyurethane resins ensures greater flexural performance for external applications and the resin will not yellow in appearance when exposed to UV light, the presence also provides greater protection from UV degradation. (wikipedia.org)
  • they have a reduced ratio of 6% light stable polyurethane resin to 100 kg kiln dried aggregate. (wikipedia.org)
  • moisture
  • The chemical ingredients are combined together to undergo chemical reaction to form silanol-functionalized urethane prepolymers that cure at ambient temperatures in the presence of moisture to form a polysiloxane polyurethane composition having enhanced properties of chemical and weather resistance, high tensile and tear strength, and high elongation. (google.com)
  • Moisture cure polyurethanes have been widely used in the adhesive and coating industries. (wikipedia.org)
  • The prepolymers were cured under atmospheric moisture to make polyurethane-urea free films. (wikipedia.org)
  • melt
  • There are two processes used for lamination: solvent lamination, which fuses the fabric and polyurethane film into a single monolithic fabric, and hot melt, which uses heat-activated glue to adhere the fabrics together. (wikipedia.org)
  • organic
  • A polysiloxane polyurethane composition is prepared by combining in the presence of water and in a predetermined proportion an organic di- or polyisocyanate, a polyol, an hydroxyl-containing silicon material having the hydroxyl groups attached directly to a silicon atom, an organotin catalyst, an amine. (google.com)
  • Polyurethane (PUR and PU) is a polymer composed of organic units joined by carbamate (urethane) links. (wikipedia.org)
  • wood
  • To create a good resistant finish, multiple coats of the polyurethane may be required on the wood surface. (ehow.com)
  • Clean the sanded wood surface with a tack cloth before applying the first coat of polyurethane. (ehow.com)