A polymer known for its flexibility, used in foams, elastomers and fabric coatings. See also Bergundtal Cloth, coated, Entrant, Helly-Tech, Hydropro, Microshed, Omni-Tech, Triple Point Ceramic, Ultrex.
Polymer made by the reaction of polyols with a multi-functional isocyanate. Provides toughness, flexibility, weather resistance, chemical resistance, and abrasion resistance to the coating film. Commonly used to make topcoats.
This material is used primarily as a cable jacket material. It has excellent oxidation, oil and ozone resistance. Some formations also have good flame resistance. It is a hard material with excellent abrasion resistance. It has outstanding "memory" properties, making it an ideal jacket material for retractile cords.
Polyurethane or “poly” is a clear, tough, durable, and chemical resistant finish that is applied as a protective top layer on wood flooring. Urethane films provide hardness without brittleness better than most other polymers.
Polyurethane is a polymer the molecular structure of which may cross-link and become a thermosetting plastic, or stay linear and remain thermoplastic. Thermosetting polyurethane molecules cross-link into a single giant molecule. Thermosetting polyurethane is widely used in various forms, including soft and hard foams. Soft, open-celled polyurethane foams are used to make seat cushions, mattresses, and packaging. Hard polyurethane foams are used as insulation in refrigerators, freezers, and homes. Thermoplastic polyurethane molecules have linear, highly crystalline molecular structures that form an abrasion-resistant material. ..full definition
A family of rigid and flexible plastics characterized by the utilization of the urethane group in their manufacture; many polyurethane products exhibit high flexibility and abrasion resistance after cure; special polyurethane based adhesive formulations are available.
A group of polymers with a variety of uses â€“ in products ranging from shoe soles to furniture upholstery and from insulation foams to coatings, paints and adhesives. Different types of isocyanates are used in the production of polyurethanes. Toluendiisocyanate (TDI) and 4,4â€(tm)-diphenylmethanediisocyanate (MDI) are of special concern since both may cause allergic reactions and asthma. Polyurethane is a relatively stable compound but when broken down emits aromatic amines, which can cause cancer.
A group of polymers used in products ranging from shoe soles to furniture upholstery, and from insulation foams to coatings, paints and adhesives. Some isocyanates used in the production of polyurethanes may cause allergic reactions and asthma. Polyurethanes are relatively stable compounds, but when broken down they emit aromatic amines, which can cause cancer.
A large molecule of chemically joined urethane units, having the capacity to solidify or "set". Irreversible when acted upon by heat, radiation or chemical cross-linking or curing agents. See Urethane.
synthetic compound derived from foluene, belonging to the family of organic polymers. Polyurethanes are used to make the foam in furniture, mattresses, car seats, building insulation, coatings for floors and furniture and refrigerators. They are also used in artificial sports tracks, jogging shoes, and in roller blade wheels.
A one or two-part structural adhesive with excellent flexibility and durability. Cure requires a catalyst, heat or air evaporation. Short shelf-life with hydroscopic tendencies (water absorption). Excellent for potting or where flexibility is required. Good for bonding plastic substrates. Generally slower cure with more complicated handling and curing procedures.
A type of hard foam product used in sign production. Urethane has the density and characteristics of wood, but only one-third of the weight. It can be used for carving and sandblasting signs much like wood.
A family of resins produced by reacting diisocyanate with organic compounds containing two or more active hydrogen to form polymers having free isocyanate groups. These groups, under the influence of heat or certain catalysts, will react with each other, or with water, glycols, etc., to form a thermosetting material.
Polymers which have good resistance properties and can provide performance characteristics such as excellent durability, high hardness, outstanding abrasion resistance, among others. Often supplied as a two-pack product.
Polymer plastic most often found in paint, varnish, and insulating foam. The rigid board form has high thermal resistance, while the liquid foam is pressurized, permitting the foam to be directed into small spaces.
A polyurethane is any polymer consisting of a chain of organic units joined by urethane links. It is widely used in flexible and rigid foams, durable elastomers and high performance adhesives and sealants, fibers, seals, gaskets, condoms, carpet underlay, and hard plastic parts. Polyurethane products are often called "urethanes".