MATERIALS, ADHESIVES AND COATINGS
BONDERITE M-CR 1200S / 1201 / 1500 / 1001 / 600 / T5900 / M-NT 65000 AERO (Alodine) conversion coatings for aluminium per MIL-DTL-81706 / MIL-DTL-5541
Country: · Model: M-CR 1200S / 1201 / 1500 / 1001 / 600 / T5900 / M-NT 65000
BONDERITE conversion coatings (historically Alodine), chromate and chromium-free, form a thin protective layer on aluminium alloys. It improves corrosion resistance and the adhesion of primers, sealants and adhesives. The M-CR, M-NT and T5900 products work per MIL-DTL-81706 and MIL-DTL-5541.
- Hexavalent chromium
- M-CR 1200 / 1200S (powder, golden), 1201, 1600 (2 packs), 600 / 600 RTU (low electrical resistance), 1001 and 1500 (clear, keep the look of aluminium)
- Trivalent chromium
- M-CR T5900 / T5900 RTU (TCP: aluminium, IVD-Al, magnesium, titanium, zinc), M-NT 65000 (REACH, MIL-DTL-81706 Type II Class 1A and 3, method C)
- Chromium-free
- M-NT 5200, M-NT 5700, M-NT 8800 (sol-gel replacement for Al and Ti)
- Magnesium
- M-CR Magnesium
Technical specifications
| Hexavalent chromium | M-CR 1200 / 1200S (powder, golden), 1201, 1600 (2 packs), 600 / 600 RTU (low electrical resistance), 1001 and 1500 (clear, keep the look of aluminium) |
|---|---|
| Trivalent chromium | M-CR T5900 / T5900 RTU (TCP: aluminium, IVD-Al, magnesium, titanium, zinc), M-NT 65000 (REACH, MIL-DTL-81706 Type II Class 1A and 3, method C) |
| Chromium-free | M-NT 5200, M-NT 5700, M-NT 8800 (sol-gel replacement for Al and Ti) |
| Magnesium | M-CR Magnesium |
| Specifications | QPL MIL-DTL-81706B (forms I, II, III, V, VI), MIL-DTL-5541 Type I/II |
| M-CR 1200S mode | 21–38 °C; immersion, brush, spray |
| Tank equipment | stainless steel 316L/304L; EPDM, FKM, PTFE seals |
| Control | NAVAIR: control of formulation and production sites |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Hexavalent chromium is contained in the powders M-CR 1200 and 1200S for tanks at room temperature of 21–38 °C; their coating ranges from light iridescent gold to brownish and is applied by immersion, brush or spray. M-CR 1201 is a non-flammable liquid concentrate based on chromic acid, M-CR 1600 is supplied in two packs without complex cyanides, and M-CR 600 and 600 RTU give a coating with low electrical resistance. The clear M-CR 1001 and 1500 keep the silvery-white look of aluminium. Trivalent chromium (TCP) is represented by M-CR T5900 and T5900 RTU for aluminium, IVD aluminium, magnesium, titanium and zinc, and by the immersion product M-NT 65000, which complies with REACH. The chromium-free M-NT 5200 and M-NT 5700 prepare the base for adhesives and organic coatings, and M-NT 8800 replaces sol-gel on aluminium and titanium. The M-CR Magnesium series is meant for magnesium alloys. Tanks and piping are made of 316L or 304L stainless steel, and seals of pumps and valves of EPDM, FKM or PTFE.
How to choose
Selection starts with process requirements. Hexavalent chromium remains in the M-CR products, trivalent in T5900 and M-NT 65000, and the chromium-free M-NT is needed where chromium is excluded. Products per MIL-DTL-81706B are controlled jointly with NAVAIR, so materials should be bought from approved sites through authorized distributors. If you only need to touch up a bare spot, look at the Touch-N-Prep pens, and for cleaning before coating the C-AK series.
Request a price and lead time
BONDERITE M-CR 1200S / 1201 / 1500 / 1001 / 600 / T5900 / M-NT 65000 AERO (Alodine) conversion coatings for aluminium per MIL-DTL-81706 / MIL-DTL-5541. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How does hexavalent chromium M-CR differ from trivalent?
M-CR 1200, 1200S, 1201, 1600 and 600 give a golden coating, while 1001 and 1500 leave aluminium clear. M-CR T5900 and M-NT 65000 work on trivalent chromium, and the latter complies with REACH.
At what temperature is M-CR 1200S applied?
The tank works at room temperature, 21–38 °C. The product is applied by immersion, brush or spray.
What are chromating tanks made of?
Tanks and piping are made of 316L or 304L stainless steel, and the seals of pumps and valves of EPDM, FKM or PTFE.
Which specifications does M-NT 65000 have?
It is listed in QPL MIL-DTL-81706 Type II Classes 1A and 3, method C, and approved for MIL-DTL-5541 Type II. M-CR 1500 is also listed in QPL MIL-DTL-81706 for the methods and classes of MIL-DTL-5541.
Are there chromium-free products for aluminium and titanium?
Yes, M-NT 8800 replaces sol-gel coatings to improve adhesion to aluminium and titanium, and M-NT 5200 and M-NT 5700 provide a base for adhesives and organic coatings.
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