ISOPREP MSDS PDF

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The compositions and methods of this invention are particularly suitable for treating aluminum and aluminum alloys. The inventors have found that treating aluminum or aluminum alloys with the mercapto-substituted silane containing composition of this invention provides both increased corrosion resistance and enhanced adhesion of subsequent organic coatings to the treated surface.

Method for treating metal surfaces using a silicate solution and a silane msss. Multifunctional organo-mercapto-substituted silanes are preferred in the practice of the process. The treatment composition is preferably applied at room temperature and preferably has a pH between 3 and 5.

The inventors have discovered that a combination of water with an appropriate solvent are required to effectively solubilize these mercapto-substituted silanes in a water matrix. Corrosion resistance is measured as the maximum number of hours the part can endure before corrosion becomes apparent in a specified manner on its surface.

The mercapto-substituted silane is preferably solubilized, with a suitable solvent, into a treatment solution. The concentration of mercapto-substituted silane in the treatment solution may be from 0. Specifications for testing the effectiveness of the corrosion inhibition and adhesion promotion of various treatments have been established. Year of fee payment: Matienzo et al, ACS Symp. A method according to claim 6 wherein the solvent is ethylene glycol monobutyl ether.

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CA CAC en ASTM B is another widely used specification for determining the corrosion resistance of a metal treated part with isoprel salt spray procedure. It is another object of this invention to provide a treatment for mxds which improves the adhesion of subsequent organic coatings to the metal while at the same time improving the corrosion resistance of the metal.

Mds method according to claim 1 wherein the metal is subjected to a process selected from the group consisting of cleaning, deoxidizing, etching and a combination of the foregoing, prior to contacting the metal with the treatment solution.

As the silane becomes hydrolyzed by the water it will have a tendency to precipitate and the solution will begin to take on a white cloudy appearance.

A method according to claim 1 wherein the mercapto-substituted silane is a multifunctional mercapto-substituted silane having the following chemical structure: It is an object of this invention to provide an improved method of inhibiting corrosion of metals, especially aluminum and aluminum alloys, which is simple to apply, cost effective and environmentally friendly.

Are any of these Chemetall [a finishing. From beautiful Pine Beach New Jersey: Any help would be greatly appreciated David A. There are several sheets listed, so use the search engine and pick the most relevant data. Once the mercapto-substituted silane is applied to the metal surface the treated metal should be baked in order to dry and sioprep the coating.

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Iso Prep TDS / MSDS | Environmental XPRT

Preferably, the contact occurs at room temperature and lasts for from 15 seconds to several minutes. Many of the foregoing proposed techniques, however, have been proven to be ineffective, or to require time consuming, energy inefficient, multi-step processes.

I did some searching for you. Method of treating metals using vinyl silanes and multi-silyl-functional silanes in admixture. Each sample was then processed in a salt spray chamber according mds the procedures set forth in ASTM B standard in order to determine corrosion resistance.

Steel sheet with enhanced corrosion resistance having a silane treated silicate coating. An optional second treatment solution containing an organofunctional silane may also be employed, particularly if the metal is to be painted.

ISOPREP 177

A method according to claim 1 wherein the solvent is ethylene glycol monobutyl ether. A method according to claim 6 wherein the metal is subjected to a process selected from the isoperp consisting of cleaning, deoxidizing, etching and combination of the foregoing, prior to contacting the metal with the treatment solution. US USB1 en