SafeGard CC-Chromate Free Seals and Conversion Coatings

 SafeGard CC seals are RoHS compliant chromate free conversion coating surface treatment for surface finishing of aluminum zinc and magnesium that can give a yellow alodine iridite color if desired. SafeGard CC-3400 provides aluminum corrosion protection with a reactive aluminum surface treatment not a barrier coating.

SafeGard CC-5000 is a chromate-free inorganic seal for anodizing and aluminum oxide coatings.  SafeGard CC-5000 is a direct replacement for standard dichromate seal used in military applications specification MIL-A8625C. It contains no organics or toxic environmentally unfriendly inorganics. Will not breakdown with heat above 160 F as will dichromate seals, almost identical color to final product and is used at almost the same temperature and time as a chromate seal.  This is not an iron phosphate coating.

Sanchem 1000 deoxidizer is the most effective chromate-free deoxidizer in removing oxide films and smut from aluminum surfaces. This deoxidizer is complete iron-free.  (See below for additional information)

SafeGard CC- Plating seal can replace traditional time consuming zincate and copper strikes with an easy to use fast acting single stage plating seal that is used as a base coat for both standard nickel and electrolysis nickel when plating over aluminum, magnesium, beryllium, niobium and titanium.

ELECTROLYSIS NICKEL applied over SafeGard CC-Plating Seal 

        6061 Aluminum                                        Beryllium                            Magnesium AZ-91

                                 Niobium                                                                             Cast 380 Aluminum

 Electroless Nickel

SafeGard EN-MG is an easy to use long life mid-phos electroless nickel strike bath for use on magnesium and magnesium alloys.  The SafeGard EN-MG is specifically designed to be used in conjunction with the SafeGard EN-MGPS (Magnesium Plating Seal).  

SafeGard^Ò EN-AL is an easy to use electroless mid-phos electroless nickel strike bath for use on both wrought and cast aluminum alloys.  SafeGard^Ò EN-AL formula is designed to work specifically with our SafeGard EN-ALPS Aluminum Plating Seal.    This product will extend the life of your low or high phos electroless bright nickel baths. NOTE: This electroless nickel is incompatible with standard zincates products.                                   

ADVANTAGES OVER CONVENTIONAL ELECTROLESS NICKEL PROCESSES

Conversion coating for steel

SafeGard 13,062RTU is a dry in place cleaner and conversion coating solution for use on iron, steel or zinc surfaces.   When the surface reaction is complete the protected steel or iron becomes blue-black in color.  This protective coating has excellent corrosion protection from the effects of hummidty and is an excellent base for both liquid paints and powder coatings.  Totally phosphate free, it can be used on applications where you currently use an iron phosphate coating.

                                       Iron casting treated with Safegard CC-13062

Conversion coating for tinplated steel
SafeGard 8000Sn - uses a chrome-free solution that will give you the performance of hexavalent chromate without its disposal and health related problems. SafeGard 8000Sn forms by electrolytic deposition a corrosion resistant barrier coating using without trivalent chromium or hexavalent chromates chemistry. 

Safegard CC-3400seal #2 Conversion coating system for aluminum

SafeGard CC-3400seal#2 is a RoHS compliant chromate free seal aluminum, zinc and magnesium.  This final seal will help you achieve maximum corrosion resistance and paint adhesion on corrosion susceptible alloys such as 2024 aluminum and 380-cast aluminum. For shop/field repairs, you will get the same performance with our cold applied SafeGard CC-7000 when used in combination with the SafeGard CC-3400seal#2.  The combination of SafeGard CC-7000 and SafeGard CC-3400Seal#2 has been tested at Boeing in St. Louis to meet the salt spray performance, the paint adhesion and electrical conductivity to meet the performance requirements of Mil-C-5541.

 SafeGard CC-Seal#3 is a chromate-free corrosion resistant reactive seal for zinc and galvanized steel.  This product reacts with the zinc to form a corrosion resistant yellow colored barrier coating.  The picture below shows the results of a 5 week stack test. 5 Week Stack Test

  

                 SafeGard CC-Seal#3                            SafeGard CC-3400 w/SafeGard CC-4000 seal

SafeGard CC - Seal#10 - Enhances paint and coating adhesion specifically from filiform corrosion on aluminum castings such as (380, 383, 360, aluminum zinc diecastings). This product is to be used with either the SafeGard CC-3000 or the SafeGard CC-3400. Seal#10 is an environmentally safe, clear seal which is applied at room temperature. 

Sanchem 1000 deoxidizer/desmutter - Thoroughly removes anodizing and difficult black-brown stains caused by an aggressive alkaline sluminum cleaner .  Sanchem 1000 prevents short term surface oxidation making it perfect to passivate the metal prior to anodizing, plating or conversion coating. This nitric acid based deoxidizer contains no fluorides, chromates, or other heavy metals. Studies at Boeing concluded that it will effectively remove anodizing when used at 140F without causing any endgrain pitting. 

• Sanchem 1000 remove anodizing,  heat scale oxides, aluminum oxide coatings, surface oxides and smut created when using alkaline etches better than competitive deoxidizers in Auger Electron Spectroscopy (AES) and surface conductivity testing.
• Stable solution does not sludge and has 3x longer bathlife than chromate-type.
• Easy to monitor and maintain, only nitric acid and Sanchem 1000 are needed to maintain the bath.
• Sanchem 1000 remove anodizing finishes without attacking the aluminum surface below.
• Simple Disposal - contains no chromate, peroxide, fluorides, sulfates, ammonia salts, amines, organics or other environmentally sensitive materials.

 

Aluminum cleaners
Which cleaner should I use? Selection of aluminuim cleaner is dependent upon the type of soil that you have on your parts. Heavy deposits of wax and oil will require the use of either a solvent or heavy duty alkaline cleaner. If an alkaline cleaner is used it should be followed by treatment in a deoxidizer or mild acid solution because alkaline cleaners leave difficult to remove inorganic deposits and a highly reactive easily corroded surface.

1. Sanchem 500 - mildly alkaline phosphate based aluminum cleaner for heavy soils on wrought alloys.
2. Sanchem 550 - mild acid aluminum cleaner for wrought alloys.
3. Sanchem 555 - stronger acid aluminum cleaner than Sanchem 550 for wrought alloys.
4. Sanchem 560 - very mild acid aluminum cleaner for castings and wrought alloys.
5. Sanchem 565 - moderately strong acid aluminum cleaner for castings and wrought alloys.

Coating for galvanized steel & zinc
SafeGard 3400Zn - is a RoHS compliant chromate free chemical conversion coating that will give you better paint and adhesive adhesion then hexavalent chromate conversion coating.  Safegard CC is not affected by heat and will not dry out and mudcrack the way standard chromate conversion coating do. This is due the fact that this chemical conversion coating reacts quickly with zinc at the molecular level it is not just a barrier coating but a true conductive conversion coating.   The process should be used on zinc castings, zinc plated steel and galvanized steel. The Safegard process is easy to control and can be applied by spray, brush or dip.  Meets ASTM Standard B-940-05, Non-Chromate Chemical Conversion Coatings on Zinc Surfaces. 
 

Table 1: Coating color and corrosion resistance Hours to white rust in a neutral salt spray test (ASTM B117) ZINC PRETREATMENTS COLOR & HOURS TO WHITE CORROSION Chromium Trivalent Blue/Black – 48 hours Chromate   (per ASTM B201) Yellow – 96 hours SafeGard CC -3400 w/ CC-4000 inorganic seal Yellow –  Over 300 hours

 Conversion coating for Magnesium

SafeGard 3400Mg - is a RoHS compliant chromate free chemical conversion coating that will give you better paint and adhesive adhesion then hexavalent chromate conversion coating.  Safegard CC is not affected by heat and will not dry out and mudcrack the way standard chromate conversion coating do. This conversion coating quickly reacts with magnesium to create a protective barrier.  The Safegard process is easy to control and can be applied by spray, brush or dip.   

Table 2: Paint adhesion and corrosion resistance After 200 hour neutral salt spray test (ASTM B117) Boeing Specification DMS 1786L ALLOY ADHESION & CORROSION RESISTANCE Z 312 B Alloy, water based primer No loss of adhesion, no blisters or corrosion Z 312 B Alloy, solvent based primer No loss of adhesion, no blisters or corrosion Z 312 B Alloy, Primer and Topcoat of Mil-C-83286 Gloss White No loss of adhesion, no blisters or corrosion

Safegard CC-3400seal #2 Conversion coating system for aluminum

SafeGard CC-3400seal#2  is a RoHS chompliant chromate free seal aluminum, zinc and magnesium.  This final seal will help you achieve maximum corrosion resistance and paint adhesion on corrosion susceptible alloys such as 2024 aluminum and 380-cast aluminum. For shop/field repairs, you will get the same performance with our cold applied SafeGard CC-7000 when used in combination with the SafeGard CC-3400seal#2.

AIR FORCE RESEARCH LABORATORY - March 18, 1999

"NON-CHROMATED CONVERSION COATINGS TESTING AND EVALUATION"

Conversion Coating Manufacturer Aluminum Alloy 24 Hours 96 Hours 168 Hours 336 Hours   Henkel Alodine 1200S Chromate Conversion coating 2024-T3 No evid. of corrosion No evid. of corrosion No evid. of corrosion No evid. of corrosion Pass 7075-T6 No evid. of corrosion 1 pit total (5 panels) 1 pit total (5 panels) 1 pit total (5 panels) Pass Sanchem-chromate-free SafeGard CC-7000 with SafeGard CC-3400seal#2 2024-T3 No evid. of corrosion No evid. of corrosion 4 pit total (5 panels) 8 pit total (5 panels) Pass 7075-T6 No evid. of corrosion No evid. of corrosion No evid. of corrosion No evid. of corrosion Pass organo metallic fluorotitanic acid titanium based 2024-T3 Severe Corrosion Severe Corrosion Severe Corrosion Severe Corrosion Fail 7075-T6 Severe Corrosion Severe Corrosion Severe Corrosion Severe Corrosion Fail Polymer w/phosphate coating 2024-T3 Severe Corrosion Severe Corrosion Severe Corrosion Severe Corrosion Fail 7075-T6 Severe Corrosion Severe Corrosion Severe Corrosion Severe Corrosion Fail Wetting agents with fluorides 2024-T3 > 20 pits per panel Medium Corrosion Severe Corrosion Severe Corrosion Fail 7075-T6 Moderate Corrosion Severe Corrosion Severe Corrosion Severe Corrosion Fail Wetting agents with fluorides & n-methyl pyrrolidone 2024-T3 Moderate Corrosion Medium Corrosion Severe Corrosion Severe Corrosion Fail 7075-T6 > 50 pits per panel > 100 pits per panel Slight Corrosion Severe Corrosion Fail

Corrosion Scale: (% Surface area) (0%) (1%) (1% - 3%) (15% - 50%) (> 50%) Severe None 100 pits Slight Moderate

 

 

STOP RUST BEFORE IT STARTS WITH A SAFEGARD PROTECTIVE COATING

Sanchem Inc. · Chicago, IL · 312-733-6100 · 800-621-1603