Automotive mastic

Talc is also often used as an extender in epoxy adhesives and sealants, but it also has flow control properties. Talc is used in higher-solids, high-viscosity applications such as caulking compounds, automotive putties, mastics, and sealants. Talc is a hydrophobic and organophilic material. 

High-viscosity liquids, pastes, and mastics are ideal adhesives for application by robots. Robotic application is commonly used in industries such as automotive and consumer products to increase quality and to reduce labor and material costs.12,13... 

The most important characteristics of butyl rubber are its low permeability to air and its thermal stability. These properties account for its major uses in inner tubes, tire inner liners, and tire curing bladders. Because of the poor compatibility of butyl with other rubbers (with respect to both solubility and cure), the halobutyls are preferred. The brominated p-methylstyrene-containing butyl rubbers are used in a number of grafting reactions for tire applications and adhesives. Other uses for butyl rubber are automotive mechanical parts (due to the high damping characteristics of butyl), mastics, and sealants.55... 

MAJOR PRODUCT APPLICATIONS filtration, ceramics, foams, floor tiles, shoe soles, paints, food, building products, welding electrodes, gaskets, stucco, EIFS, asbestos alternative, sealants, roof coatings, athletic surface coatings, crack fillers and sealers, brake pads, clutches, pavement, artificial leather, electrical components, automotive components, household appliances, mastics, putties, patching compounds, grouts... 

DispercoII. [Bayer Miles] Polychloro-butadiene and polyurethane latexes for formulation of water-based contact cements, laminating and mastic adhesives for the automotive, construction, furniture, footwear, and iricg. industries. 

Symalit GMT. [Symaliti MBS Mastics] Glass mat leMorced tiiennqdastics for automotive bumper systems, front end, under-hood, underbody panels. 

Butadiene, 2-methyl-, polymer with 2-methyl-1-propene Butyl rubber Isobutylene/isoprene co-polymer Kalar 5214 Kalat 5263 Kalene 800 2-Methyl-1,3butadiene polymer with 2-methyl-1-propene Poly(isobutylene-co-isoprene). Cross-linked butyl composition produces nonsagging butyl-based sealants, e.g., automotive windshield tape, hot melt sealant as base for butyl mastics Viscosity (Mooney, ML 1- 8,100°) = 42-52. Hardman. 

Ultrabiend . [BASF/Engineering Mastics BASF AC] PBT/ASAorPBT/PC bfends fminj. molding of tech, parts in automotive tmd elecydectionics industries. 

Chem. Descrip. 1,6-Hexamethylene diisocyanate biuret CAS 822-06-0 EINECS/ELINCS 212-485-8 Uses For light-stable, w/eather-resist. industrial coatings for paints (metal finishing for automotive, aircraft, machines), coatings (wood, plastics, textiles, leathers, and flooring), corrosion resist, coatings, elastomeric casting compds. and mastics... 

Uses Associative thickener for latex flat and semigloss paints, water-reducible paints, adhesives, automotive basecoats, cementitious prods., inks, mastics, plaster Features VOC-free Properties Powd. 100% act. 

Rubber, natural (India rubber, Caoutchouc) n. An amorphous polymer consisting essentially of ds-1,4-polyisoprene, obtained from the sap (latex) of certain trees and plants, mainly the Hevea brasiliensis tree. The material is shipped from tropical plantations in one of two primary forms latex, usually stabilized and preserved with ammonia and centrifuged to remove part of the water or sheets made by milling the coagulum from the latex. Natural rubber has very high molecular weight and is usually masticated to reduce the molecular weight and improve processability. A major use is sidewalls of automotive tires. 

Nondrying mastic sealers for concealed metal-to-metal joints where elasticity and resistance to staining are not essential, e.g., hidden joints in curtainwall construction, acoustical sealants, hidden automotive panel sealants, and gap fillers. 

Butyl rubber tapes are also used in automobiles for the glazing of windshields and back lites. Other automotive apphcations for butyl tapes and gunnable mastics are as after-seals for windows, as vibration dampening materials on panels, and as general sealants on finme and body parts. 

Air floated and water-washed grades of kaolin are widely used in paper, packaging and construction adhesives based on starch, emulsion and latex based waterborne systems. They are also used in fabric adhesives, mastics and caulking compoimds. Calcined kaolin is used as a low moisture reinforcing agent in one or two part construction and automotive sealants based on butyl, methane and silicone elastomers. Calcined kaolin is less acidic and so can be used with precipitated calcium carbonate in polysulfide sealants. Typical loading of kaolin fillers are 5 to 25% in adhesives, 5 to 20 % in sealants, and 25 to 50 % in mastics. 

Other uses for butyl rubber are automotive mechanical parts (due to the high damping characteristics of butyl), adhesives, mastics, and sealants. ... 

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