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Curing, barrier coatings

EP-4 developed by ERDL is a very flexible polyester based on polyethylene glycol with molecular weight-200 (PEG-200), isophthalic acid (IPA) and maleic anhydride (MAn). Before its use, it is blended with styrene monomer (1 1) and cured at room temperature using cobalt naphthenate (as an accelerator) and methyl ethyl ketone (MEK) peroxide (as a catalyst). This meets the requirements of the main inhibitor and is used for inhibition of DB and CMDB propellants after the application of a barrier coat (generally a rigid polyester such as PR-3). However, it is observed during manufacture of EP-4 that there is a lot of batch-to-batch variation in properties in spite of the strict quality control measures adopted during its manufacture. [Pg.299]

Coatings based on vinyl-epoxies are used as corrosion barrier coatings for storage tanks containing corrosive chemicals. Vinyl-epoxies are a very efficient and long-lasting means of protection for the repair of cured-in-place pipes. This is comparable to replacing a pipe. [Pg.212]

Eymyd Resin. [Ethyl] Pdyamidacid sol n. forms a therm(q)lastic fluori-nated polyimide after solv. eviqxxation and curing to erosion barrier coating, thermal protective coating, tool coating, adhesive, fiber sizes. [Pg.140]

Uses Elastomeric coating curing by chem. reaction to a tough, flexible, chem. resist, lining that acts as a leakproof barrier, used for concrete surfaces... [Pg.857]

Effect of Ageing on the OTRs of Cured Barrier Coatings... [Pg.1663]

Polymers can be evaporated, deposited as a thin film, and cured in a vacuum system to provide a basecoat. For example, acrylate coatings can be deposited and cured with an e-beam. The deposited liquid flows over the surface and covers surface flaws, reducing pinhole formation. This technique can be used in vacuum web coating and has been found to improve the barrier properties of transparent barrier coatings. [Pg.60]

The adhesive was developed for application to seal food containers with alumina foils and to seal glass plates. In this case, the vinyl polymerization step can be carried out by UV light radiation through the already mounted glass plates with a photoactive radical initiator to cure the viscous adhesive material. Another application of this material is the development of diffusion barrier containing protective coatings on medieval stained glasses (31). [Pg.339]

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See also in sourсe #XX -- [ Pg.474 ]



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Barrier coats

Coating cure

Coatings curing

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