Mast Finishes

Black anodize finish meets MIL-A-8625, Type II, Class 2 specifications

Mast Finishes

Will-Burt offers a variety of finishes for aluminum and composite masts. These advanced finishes are designed to prolong the life of the mast and reduce maintenance. They have been field proven around the world from the high temperatures and dust conditions of the harshest desert regions to the constant rain and salt exposure of the coasts. Custom finishes and colors can also be created to meet specific program requirements.

Mast Finish Description	Thumbnail	Will-Burt Part Number Suffix	Finish Specification	FED-STD-595
No Finish Applied	Not Applicable	NOFI	Not Applicable	N/A
Clear Anodize		AN01	Clear anodize is the standard commercial finish option for aluminum masts. It creates a hardened surface that protects the mast from dust, dirt and precipitation. Clear anodize finish meets MIL-A-8625, Type II, Class 1.	N/A
Black Anodize		AN02	Black anodize is an economical color option that provides the same level of protection as the standard commercial clear anodize aluminum mast finish and meets MIL-A-8625, Type II, Class 2.	N/A
Hardcoat		AN03	Standard on pneumatic military mast models, Clear Hardcoat mast finish is a highly technical process of hard anodizing aluminum surfaces resulting in a charcoal gray color. Telescoping masts with this abrasion resistant finish will have increased durability and corrosion protection for extreme environmental conditions and will have extended life expectancy. This process has been tested worldwide under all environmental conditions for pneumatic and QEAM masts in military applications. This finish meets MIL-A-8625, Type III, Class 1.	N/A
Hardcoat with PTFE (Telfon®)1		AN04	Standard on pneumatic military mast models, Clear Hardcoat mast finish is a highly technical process of hard anodizing aluminum surfaces resulting in a charcoal gray color. Telescoping masts with this abrasion resistant finish will have increased durability and corrosion protection for extreme environmental conditions and will have extended life expectancy. This process has been tested worldwide under all environmental conditions for pneumatic and QEAM masts in military applications. This finish meets MIL-A-8625, Type III, Class 1. Available with permanent PTFE (Teflon®) lubricant in the finish which provides a permanent lubricant, reducing seal wear and need for routine maintenance.	N/A
Black Hardcoat		AN05	Standard on pneumatic military mast models, Black Hardcoat mast finish is a highly technical process of hard anodizing aluminum surfaces with black dye. Telescoping masts with this abrasion resistant finish will have increased durability and corrosion protection for extreme environmental conditions and will have extended life expectancy. This process has been tested worldwide under all environmental conditions for pneumatic and QEAM masts in military applications. This finish meets MIL-A-8625, Type III, Class 2. Masts with Black Hardcoat will meet the salt fog requirement of MIL-STD-810F, Method 509.4 for marine environments.	N/A
Black Hardcoat with PTFE (Telfon®)		AN06	Standard on pneumatic military mast models, Black Hardcoat mast finish is a highly technical process of hard anodizing aluminum surfaces with black dye. Telescoping masts with this abrasion resistant finish will have increased durability and corrosion protection for extreme environmental conditions and will have extended life expectancy. This process has been tested worldwide under all environmental conditions for pneumatic and QEAM masts in military applications. This finish meets MIL-A-8625, Type III, Class 2. Masts with Black Hardcoat will meet the salt fog requirement of MIL-STD-810F, Method 509.4 for marine environments. Available with permanent PTFE (Teflon®) lubricant in the finish which provides a permanent lubricant, reducing seal wear and need for routine maintenance.	N/A
MIL Bronze		AN07	MIL Bronze is a two-step anodized finish dyed in a bronze color to fit with desert sand finishes on aluminum masts. It creates a hardened surface that protects the mast from dust, dirt and precipitation. MIL Bronze finish is an anodized finish and meets MIL-A-8625, Type II w/Electrolytic color (two step process)	N/A
Black Anodize w/ Electrolytic Color		AN08	Black anodize is an economical color option that provides the same level of protection as the standard commercial clear anodize aluminum mast finish and meets MIL-A-8625, Type II with Electrolytic Color, a two step process.	N/A
Chromate Convert		CH01	MIL-DTL-5541, Class 1A provides maximum protection against corrosion, whether painted or unpainted. This is a relatively thick coating used as a final finish or pre-treatment to paint or powder coating and covers chemical conversion coatings formed by the reaction of chemical conversion materials with the surfaces of aluminum and aluminum alloys. The specification is approved for use by all departments and agencies of the United States Department of Defense (DoD).
Electrodeposited Cadmium Plating		PL01	Electrodeposited Cadium Plating serves as a great paint base while improving aesthetic value and prolonging the life of the base metal due to an increase in corrosion resistance. The Type II classification specifies plating with supplementary chromate treatment to increase corrosion resistance and Class 1 specifies a minimum thickness of 0.0005”. SAE-AMS-QQ-P-416 is the federal standard for Electrodeposited Cadium Plating and it is best used in harsh environments and aerospace applications.
Black Oxide		PL02	Black oxide meets MIL-DTL-13924 specification and is a conversion coating for ferrous materials, stainless steel, copper and copper based alloys, zinc, powdered metals, and silver solder used to add mild corrosion resistance, for appearance and to minimize light reflection. One of its advantages over other coatings is its minimal buildup.
Electroless Nickel Plate		PL03	Electroless Nickel Plating, measuring 0.0005" thick can be plated over a wide variety of metals including aluminum, titanium, mild steels, stainless steel, hardened steel, copper, brass and zinc die-cast. Electroless nickel provides a hard, wear resistant surface and improves resistance to galling.
Passivate		PL04	ASTM-A967 is the standard specification for chemical passivation treatments for stainless steel. The passivate process removes foreign metals and oils, usually from machining from the surface of stainless steel. Passivation purifies the surface of a machined part, therefore improving corrosion resistance without changing the dimensions or overall appearance of the part.
CARC (Chemical Agent Resistant Coating) Desert Tan		PA01	Composite Masts and Base Tube of Aluminum Masts in Desert Tan finishes color numbers MIL-DTL 64159 color #33446 per FED STD-595.	Color #33446
Polane® (Polyurethane Enamel Low Gloss Coating) Desert Tan		PA02	Composite Masts and Base Tube of Aluminum Masts in Desert Tan finish 3Polane® Color #33446 per FED-STD-595.	Color #33446
CARC (Chemical Agent Resistant Coating) Desert Sand		PA03	Composite Masts and Base Tube of Aluminum Masts in Desert Sand finish MIL-DTL-64159 Color #30372 per FED-STD-595.	Color #30372
Polane® (Polyurethane Enamel Low Gloss Coating) Desert Sand		PA04	Composite Masts and Base Tube of Aluminum Masts in Desert Sand finish 3Polane® Color #30372 per FED-STD-595.	Color #30372
CARC (Chemical Agent Resistant Coating) Camo Green		PA05	Composite Masts and Base Tube of Aluminum Masts CARC Camo Green meets MIL-DTL-64159. Camo Green color number is 34094 per FED-STD-595.	Color #34094
Polane® (Polyurethane Enamel Low Gloss Coating) Camo Green		PA06	Composite Masts and Base Tube of Aluminum Masts Camo Green 3Polane® Color #34094 per FED-STD-595.	Color #34094
CARC (Chemical Agent Resistant Coating) Untinted White		PA07	Composite Masts and Base Tube of Aluminum Masts CARC Untinted White meets MIL-DTL-64159 Color #17925 per FED-STD-595.	Color #17925
Polane® (Polyurethane Enamel Low Gloss Coating) Untinted White		PA08	Composite Masts and Base Tube of Aluminum Masts CARC Untinted White meets 3Polane® Color #17925 per FED-STD-595.	Color #17925
Powder Coat Paint Black		PA09	Powder Blackstone II Semigloss CAT 1E1952H WB Paint Item Number 107643	N/A
Powder Coat Paint Gray		PA10	Powder Coat Aluminum Gray Color per RAL9007 WB Paint Item Number 108625	N/A
Electrocoating Dip (E-Coat)		PA11	Powercron 6000 CX Black or Equal per PPG process control P691B-524 or equal	N/A
Polane® Paint Black		PA12	3Polane® Color #27038 per FED-STD-595	#27038
CARC Paint Black		PA13	MIL-DTL-64159 Color #27038 per FED-STD-595	#27038
Powder Coat Paint Desert Tan		PA14	Powder Coat-Desert Tan; Color Chip 33446	#33446
7 Stage Wash/Pretreatment		PA15	Oxsilan 9810	N/A
CARC Earth Yellow		PA16	MIL-DTL-64159 Color #33245 per FED-STD-595	#33245
NATO Green		PA17	BS381C 285	N/A
Polane® Yellow-Olive		PA18	RAL 6014 WB Paint Item Number 109086	N/A
Yellow-Olive IRR		PA19	WB Paint item number 110004 RAL 6014-F9	N/A
Olive-Drab Semi-Gloss		PA20	Polane® RAL6022 Olive-Drab Semi-Gloss WB Paint item number 110005	N/A

Application Examples
Part number 5176401 defines a part with drawing number 51764. The part number 5176401 potentially defines multiple finish variations when a suffix is added to the part number.
A part number of “5176401-AN01” means the part is to be clear anodized per Table 1.
A part number of “5176401-AN02” means the part is to be black anodized per Table 1.
The finish suffix can be applied to top level assembly part numbers. This defines the finish on all appropriate sub-component parts within the assembly.
A part number of “710390690-AN05” means the part is to be black hardcoated per Table 1.