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
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.
- Sanchem 500 - mildly alkaline phosphate based aluminum cleaner for heavy soils on wrought alloys.
- Sanchem 550 - mild acid aluminum cleaner for wrought alloys.
- Sanchem 555 - stronger acid aluminum cleaner than Sanchem 550 for wrought alloys.
- Sanchem 560 - very mild acid aluminum cleaner for castings and wrought alloys.
- 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
