ISOPREP MSDS PDF

Arashikinos 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. Specifications for testing the effectiveness of the corrosion inhibition and adhesion promotion of various treatments have been established. A method according to claim 6 wherein the concentration of the mercapto-substituted silane in the treatment solution is from 0. A method according to claim 1 wherein the metal is selected from the group consisting of aluminum and aluminum alloys. Beccaria et al, Corros. The inventors have found that it is important to dry and bake the treated metal after application of the mercapto-substituted silane in order to properly cure the silane coating on the metal surface.

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Malmaran Do you know anything about them? Beccaria et al, Corros. Aluminum and aluminum alloys frequently require corrosion protection and improvements in adhesion between the base aluminum or aluminum alloys and subsequent polymer coatings. However, preferably the surface is not treated with any non-mercapto-substituted silanes, silicates, chromates or other conversion coatings prior to treatment with the mercapto-substituted silane.

I believe it is a cleaner. Gamma-mercaptopropyltrimethoxy silane is available from the Witco Corporation of Greenwich, Conn.

Similar specifications, such as ASTM D, have been prepared to test the adhesion of organic coatings to treated metal surfaces. We have since purchased a similar product from Oakite, that we we able to add directly to our old DW bath. Method of treating metals using vinyl silanes and multi-silyl-functional silanes in admixture. Please contact them for this product. 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.

Acetic acid can be used to make any needed adjustments to pH. Year of fee payment: The concentration of mercapto-substituted islprep in the treatment solution will affect the corrosion protection achieved, with better corrosion protection achieved at higher concentrations.

In this regard, a storage stable concentrate of mercapto-substituted silane can be prepared by dissolving the silane in a solvent, such as ethylene glycol monobutyl ether, without water. A method according to claim 1 wherein the mercapto-substituted silane is a multifunctional mercapto-substituted silane having the following chemical structure: Composition for metal surface treatment, metal surface treatment method, and metallic material. Isopfep optional second treatment solution containing an organofunctional silane may also be employed, particularly if the metal is to be painted.

The present invention relates to a isopreo and method for its use in preventing or inhibiting corrosion of metals, particularly aluminum and aluminum alloys.

In this regard, atmospheric corrosion is of particular concern. For instance, the inventors have found that strongly acid etchants work better on T6 aluminum alloy while strongly basic etchants work better on T3 aluminum alloy.

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. Mercapto-substituted silanes, such as gamma-mercaptopropyltrimethoxy silane, may not be soluble in water alone to the extent necessary to practice this invention effectively.

It is another isorep of this invention to provide a treatment for metals which improves the adhesion of subsequent organic coatings to the metal while at the same time improving the corrosion resistance of the metal.

As a result of this potential instability, it may be useful to prepare a concentrated solution of the mercapto-substituted silane without water that is storage stable and is then added to water to prepare the treatment solution. AKS 33 DANFOSS PDF A method according to claim 2 wherein the metal meds 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.

A method iosprep to claim 6 wherein the concentration of the mercapto-substituted silane in the treatment solution is from 0. The process of this invention has been found to increase the corrosion resistance of metals generally, not including zinc and zinc plated surfaces, but is particularly effective on aluminum and aluminum alloys. The inventors have found that it is important to dry and bake the treated metal after application of the mercapto-substituted silane in order to isprep cure the silane coating on the metal surface.

Multifunctional organo-mercapto-substituted silanes are preferred in the practice of the process. Samples of aluminum alloys T6 and T3 were processed through the following cycle by immersion:. Isopep sheet with enhanced corrosion resistance having a silane treated aluminate coating.

A method according to claim 1 wherein the metal is subjected to a process selected from the group consisting of cleaning, deoxidizing, etching and a mssd of the foregoing, prior to contacting the metal with the treatment solution. After curing, the treatment with the mercapto-substituted silane may be repeated and baked again, as desired.

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Examples include: Aluminum conversion coatings to protect and aid paint adhesion for the fuselage Electroless nickel provides protection and wear resistance to engine components Hard chromium electroplating to provide wear resistance for landing gear Surface preparation to prepare the base metals for subsequent coatings Zinc-nickel electroplating to provide sacrificial corrosion protection for fasteners Technology Overview Aluminum conversion coatings Iridite NCP, EXP and provide excellent corrosion resistance to the aluminum alloy. These coatings can be applied as the final finish or as a primer to improve paint adhesion. Typical applications could include interior and exterior surfaces of an airplane body and mechanical components used in landing gear. Where magnesium is used, Iridite 15 is the recommended conversion coating. Surface preparation Removing oil, grease and general soils from metals such as aluminum, brass, magnesium and steel is a critical step in any surface treatment process. The range includes: Non-etch cleaners for light metals Etches for aluminum Soak degreasers for ferrous and non-ferrous metals Electrolytic cleaners for ferrous and non-ferrous metals These products are extensively specified by the leading aerospace organizations.

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The process of this invention has been found to increase the corrosion resistance of osoprep generally, not including zinc and zinc plated surfaces, but is particularly effective on aluminum and aluminum alloys. This invention is further described by the following examples which should be taken as illustrative only and not limiting in any manner:. The mercapto-substituted isoprepp is preferably solubilized, with a suitable solvent, into a treatment solution. Wherein R 1R 2 and R 3 are independently selected from the group comprising of alkoxy groups, alkyl groups and hydrogen, and wherein n is an integer from 0 to Please contact them for this product. CA CAC en Phosphate conversion coatings are also used, but generally provide substantially less corrosion protection unless used in conjunction with a mssd. Water Rinse 1 room temp.

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ISOPREP MSDS PDF

Malmaran Do you know anything about them? Beccaria et al, Corros. Aluminum and aluminum alloys frequently require corrosion protection and improvements in adhesion between the base aluminum or aluminum alloys and subsequent polymer coatings. However, preferably the surface is not treated with any non-mercapto-substituted silanes, silicates, chromates or other conversion coatings prior to treatment with the mercapto-substituted silane. I believe it is a cleaner.

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Thus, the inventors believe that the mercapto-substitution on the silane provides significant and unexpected improvements in corrosion protection and adhesion promotion in relation to non-mercapto-substituted silanes. Inland Technology The treatment solution is applied to the metal surfaces by immersion, spraying, flooding or other similar means of contact. A method according to claim 2 wherein the metal is selected from the group consisting of aluminum and aluminum alloys. The compositions and methods of this invention are particularly suitable for treating aluminum and aluminum alloys. The inventors have found that the corrosion resistance of metal, particularly aluminum and aluminum alloys, can be greatly enhanced by applying a treatment solution comprising a mercapto-substituted silane, preferably followed by a bake dry and cure. EDTA is a chelating agent whose full name is ethylenediamine tetraacetic acid.

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