Sealants primers for

Further information may be found in a comprehensive American compendium and in the articles Primers for sealants and Sealants in double glazii. ... 

Further information may be found in Ref. [6] and in articles on Selection of joint sealants, Primers for sealants and Sealant Joint design together with a series of doctoral... 

Because these systems are used in ways that are different from their construction sealant counterparts, extensive studies on long-term adhesion have been carried out to evaluate adhesion promoters capable of giving long-term (15-30 years) service life. The most successful of these have been the alkyl silanes, specifically y-glycidoxy-propyl-trimethoxy-silane or mercapto-propyl-trimethoxy-silane, although some workers have found amino-substituted silanes to be preferable (see Silane adhesion promoters, Primers for sealants). 

This is made primarily on the basis of the intended joint movement (see Sealant joint design), though other criteria are important such as compatibility with joint surface materials. To achieve a satisfactory bond to certain surfaces under the prevailing site conditions, it may be essential to employ an appropriate primer (see Primers for sealants). Table 1 summarizes the types of sealants available commercially and indicates their performance characteristics. 

Primers for sealants G B LOWE Types for porous and non-porous surfaces... 

E 1826 Specification for Low Volatile Organic Compound (VOC) Corrosion Inhibiting Adhesive Primer for Aluminum Alloys to be Adhesively Bonded Sealants and sealing... 

Polysulphide sealants in general have good adhesion to steel, aluminium and glass, usually without a primer for porous substrates such as wood and masonry it is recommended to use a primer. 

Uses Used in mfg. of coatings, adhesives, sealants, and encapsulants water-based adhesion primer for latex coatings concrete sealer aggregate binder... 

Hazardous Decomp. Prods. Heated to decomp., emits toxic NO, fumes Uses Intermediate for organic synthesis solvent for cellulose ethers in sealants and coatings primer for diesel fuels Manuf./Distrib. ABCR UK Aldrich Avocado Research Chems. Fisher Scientific UK Fluka Honeywell Perf. Polymers Lancaster Synthesis UK Sigma Venchem Whyte Chems. Ltd... 

Adhesives and sealants are manufactured from a variety of polymers. Their selection and their combinations used impact solvent selection. Most solvent systems are designed to optimize the solubility of the primary polymer. Adhesives can be divided into ones which bond by chemical reaction and ones which bond due to physical processes. Chemically reactive adhesives are further divided into three more categories for those that bond through polymerization, polyaddition, or polycondensation. Physically bonding adhesives include pressure sensitive and contact adhesives, melt, or solution adhesives, and plastisols. Polymerization adhesives are composed of cyanoacrylates (no solvents), anaerobic adhesives (do not contain solvents but require primers for plastics and some metals which are solutions of copper naphthenate), UV-curable adhesives (solvent-free compositions of polyurethanes and epoxy), rubber modified adhesives (variety solvents discussed below). 

Primers for porous surfaces are generally film-forming resin solutions. They perform the dual function of preparing the surface to receive the sealant and binding any friable surface... 

Potassium dichromate 0.5% pet (in primer paints (Hall 1944) and in hardeners for sealants based on polysulfides) (Handley and Burrows 1994) (Bruze et al. 1996)... 

Gabay, M., Boucher, B.A. An essential primer for understeuiding the role of topical hemo-stats, surgical sealants, and adhesives for maintaining hemostasis. Pharmacotherapy 33(9), 935-955 (2013)... 

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