Exterior Nonskid

Coating Systems for Flight Decks, Hangar Decks, and Vertical Replenishment Decks

Overview
LHA 5 Flight Deck
Aviation Boatswain’s Mates remove chocks and tie down chains
from a U.S. Marine Corps AV-8B Harrier on the flight deck of the
USS PELELIU (LHA 5). U.S. Navy photo by Journalist 2nd Class
Zack Baddorf.

Flight, hangar, and vertical replenishment (VERTREP) deck areas of U.S. Navy ships are subject to aircraft landing gear, safety chains, equipment movement, weather exposure, and jet engine exhaust. These decks are coated with a rugged nonskid that provides slip resistance for both aircraft and people. These areas are defined as critical coated areas.

Typical Coatings Used

The nonskid surface must be resistant to mechanical damage caused by aircraft landing gear, safety chains, and the movement of equipment. The nonskid surface must not degrade or fade due to exposure to salt air, sea spray, ultraviolet radiation and jet engine exhaust.

Primer and Stripe Coat

The primer and stripe coats are anticorrosive coatings that are qualified to MIL-PRF-24667, Coating System, Nonskid, for Roll, Spray, or Self-Adhering Application. NSI 009-32 specifies that within a zone or work area, proprietary primer and nonskid listed on QPLs for MIL-PRF-24667 shall be coated with the same primer and compatible topcoat.

Minimum expected service lives for nonskid coatings on flight, hangar, and vertical replenishment decks range from 30 days to 3 years. Different formulations, types, compositions, and applications of MIL-PRF-24667 are recommended, depending on the minimum service life of the nonskid deck. Prime coats may be followed up by a full coat, a stripe coat, or even forgone entirely, as in the case of decks with a minimum service life of 30 days.

Topcoat

The topcoat must be qualified to the performance specification MIL-PRF-24667. Acceptable topcoats for flight, hangar, and vertical replenishment deck areas qualified to MIL-PRF-24667 include Type VII, Comp G or L for decks with a minimum service life of 30 days; Type II, Comp G for decks with a minimum service life of 6 months; Type I, VI, or VIII, Comp G for decks with a minimum service life of 12 months; and Type V, Comp G for decks with a minimum service life of 3 years.

UV Resistant Coatings

UV resistant coatings are designed to prevent coating breakdown and color loss caused by constant exposure to ultraviolet radiation in the form of the sun’s rays. This improves the overall topside appearance of the ship and increases the effective lifespan of the coating, thus reducing maintenance efforts required by ship’s force.

Enhanced Durability Coatings

Constant exposure to aircraft landing gear, safety chains, and movement of deck equipment necessitates a durable nonskid coating system that can stand up to this type of operational environment.

High Heat-Resistant Nonskid

A nonskid surface with enhanced heat-resistant capabilities will be required to meet the operational envelop of the F-35 Joint Strike Fighter and V-22 Osprey aircraft. Exhaust gas temperatures produced by these platforms are much higher than those of previous vertical/short take-off and landing (VTOL) aircraft.

Low Solar Absorption (LSA) Coatings

Low solar absorption (LSA) coatings are designed to reduce the heat load and infrared signature of the ship. Interior compartments with one or more bulkheads forming a section of the superstructure stay cooler during warm weather, which benefits both sailors and equipment. LSA topcoats contain additional pigments that increase reflectance without sacrificing color or gloss.

Surface Preparation

To ensure proper coating adhesion, special attention should be paid to the surface preparation of the deck. For steel substrates with a minimum intended service life of 6 months or greater, NSI 009-32 requires a surface that meets one of the following cleanliness standards: SSPC-SP 10/NACE 2, Near-White Metal Blast standard or SSPC-SP WJ-2/NACE WJ-2, Very Thorough Waterjetting. Decks with a minimum intended service life of 30 days require a surface that meets the requirements of SSPC-SP 11, Bare Metal Power Tool Cleaning. Existing nonskid applied to walk areas may also be “Green Cleaned” using high pressure water cleaning (HPWC) with vacuum self-contained equipment to an SSPC-SP WJ-4/NACE WJ-4, Light Waterjetting condition.

Depot Repairs

NSI 009-32 is the governing document for preservation requirements. Permitted coatings are specified in Table 2. All nonskid coating system preservation efforts must be accomplished in accordance with NSI 009-32.

Ship’s Force Repairs

Ship’s force personnel are primarily responsible for maintaining the ship’s nonskid coating system integrity until repair activity maintenance is scheduled. Naval Ships Technical Manual: Chapter 634 (NSTM 634), Deck Coverings – General provides requirements, instructions, and guidance for surface preparation and coating application.

New Construction Ships

New construction ships are painted in accordance with the ship build specification for that class of ship.


Coating Systems for CVN Landing Areas
Overview
CVN Landing Area
Aircraft carrier flight deck.

Landing areas on U.S. Navy aircraft carriers are subject to constant pounding by aircraft landing gear, tailhooks, arresting cables, weather exposure, and jet engine exhaust. These decks are coated with a high impact resistant nonskid that provides slip resistance for both aircraft and flight deck personnel. Flight decks are defined as critical coated areas, and are subject to rigid aviation certification inspections. As such, only NAVSEA-approved coating systems are authorized for use.

Typical Coatings Used

The nonskid surface must stand be resistant to mechanical damage caused by aircraft landing gear, tailhooks, arresting cables, and the movement of equipment. The nonskid surface must not degrade or fade due to exposure to salt air, sea spray, ultraviolet radiation and jet engine exhaust. The nonskid coating color is dark gray, and has a raised surface profile for slip resistance.

Primer and Stripe Coat

The primer and stripe coats are anticorrosive coatings that are qualified to MIL-PRF-24667, Coating System, Nonskid, for Roll, Spray, or Self-Adhering Application. NSI 009-32 specifies that within a zone or work area, proprietary primer and nonskid listed on the QPD for MIL-PRF-24667 shall be coated with the same primer and compatible topcoat.

Minimum expected service lives for nonskid coatings on CVN landing area decks are given in terms of number of landings (10,000 or 15,000) or number of days (30). Different formulations, types, compositions, and applications of MIL-PRF-24667 are recommended, depending on the minimum service life of the nonskid deck. Prime coats may be followed up by a stripe coat, or even forgone entirely, as in the case of decks with a minimum service life of 30 days.

Topcoat

The topcoat must be qualified to the performance specification MIL-PRF-24667, Coating System, Nonskid, for Roll, Spray, or Self-Adhering Application. Acceptable topcoats for CVN flight deck landing areas qualified to MIL-PRF-24667 include Type VII, Comp G or L for decks with a minimum service life of 30 days; Type I, VI, or VII, Comp L for decks with a minimum service life of 10,000 landings; and Type V, Comp L for decks with a minimum service life of 15,000 landings.

UV Resistant Coatings

UV resistant coatings are designed to prevent coating breakdown and color loss caused by constant exposure to ultraviolet radiation in the form of the sun’s rays. This improves the overall topside appearance of the ship and increases the effective lifespan of the coating, thus reducing maintenance efforts required by ship’s force.

Enhanced Durability Coatings

Constant exposure to aircraft landing gear, safety chains, and movement of deck equipment necessitates a durable nonskid coating system that can stand up to this type of operational environment.

High Heat-Resistant Nonskid

A nonskid surface with enhanced heat-resistant capabilities will be required to meet the operational envelop of the F-35 Joint Strike Fighter and V-22 Osprey aircraft. Exhaust gas temperatures produced by these platforms are much higher than those of previous vertical/short take-off and landing (VTOL) aircraft.

Surface Preparation

To ensure proper coating adhesion, special attention should be paid to the surface preparation of the deck. NSI 009-32 requires a surface that meets one of the following cleanliness standards: SSPC-SP 10/NACE 2, Near-White Metal Blast standard or SSPC-SP WJ-2/NACE WJ-2, Very Thorough Waterjetting. Decks with a minimum intended service life of 30 days require a surface that meets the requirements of SSPC-SP 11, Bare Metal Power Tool Cleaning. Existing nonskid may also be “Green Cleaned” using high pressure water cleaning (HPWC) with vacuum self-contained equipment to an SSPC-SP WJ-4/NACE WJ-4, Light Waterjetting condition.

Depot Repairs

NSI 009-32 is the governing document for preservation requirements. Permitted coatings are specified in Table 2. All nonskid coating system preservation efforts must be accomplished in accordance with NSI 009-32.

Ship’s Force Repairs

Ship’s force personnel are primarily responsible for maintaining the ship’s nonskid coating system integrity until repair activity maintenance is scheduled. Naval Ships Technical Manual: Chapter 634 (NSTM 634), Deck Coverings – General provides requirements, instructions, and guidance for surface preparation and coating application.

New Construction Ships

New construction ships are painted in accordance with the ship build specification for that class of ship.


Coating Systems for Nonskid Walk Areas
Overview

Nonskid walk areas on weather decks of U.S. Navy ships are subject to high foot traffic in all weather conditions, including night operations. These decks are coated with a slip-resistant nonskid for crew safety during general passage, maintenance, or specialized operations at sea, including underway replenishment (UNREP), line handling, anchoring, etc.

Typical Coatings Used

The nonskid surface must stand up to the harsh marine environment, be resistant to damage caused by equipment being moved across the surface, and not degrade or fade due to exposure to ultraviolet radiation. The nonskid coating color is dark gray, and has a raised surface profile for slip resistance. Touch-up and repair is generally accomplished by ship’s force or by repair activities during maintenance availabilities.

Primer and Stripe Coat

The primer and stripe coats are anticorrosive coatings that are qualified to either MIL-PRF-23236, Coating Systems for Ship Structures or MIL-PRF-24667, Coating System, Nonskid, for Roll, Spray, or Self-Adhering Application.

For nonskid walk areas, acceptable primer and stripe coats qualified to MIL-PRF-23236 include Type V or VI; Class 5, 15B, or 17 paint. As an alternative to the primer and stripe coat method, NAVSEA Standard Item (NSI) 009-32 recommends a single coat system using MIL-PRF-23236 Type VII, Class 5, 15B or 17 paint.

NSI 009-32 specifies that within a zone or work area, proprietary primer and nonskid listed on QPLs for MIL-PRF-24667 shall be coated with the same primer and compatible topcoat. This includes primers listed on the QPD for MIL-PRF-24667 Type I, V, VI, or VIII; Comp G. These are rollable, general use nonskids of high durability, extended durability, high durability/fast cure, and low temperature cure, respectively.

Topcoat

The topcoat must be qualified to the performance specification MIL-PRF-24667, Coating System, Nonskid, for Roll, Spray, or Self-Adhering Application. Acceptable topcoats for nonskid walk areas qualified to MIL-PRF-24667 include Type I, V, VI, or VIII; Comp G, or Dark Gray, Type II, III, or IV; Comp G. Peel and stick nonskid deck covering, MIL-PRF-24667 Type XI, Comp PS, may be used in conjunction with Deck Gray MIL-PRF-24635 Type III, Class 2, Grade B or C.

UV Resistant Coatings

UV resistant coatings are designed to prevent coating breakdown and color loss caused by constant exposure to ultraviolet radiation in the form of the sun’s rays. This improves the overall topside appearance of the ship and increases the effective lifespan of the coating, thus reducing maintenance efforts required by ship’s force.

Color Topping

Color topping allows older, faded nonskid to be refurbished without replacement as long as its slip resistance characteristics remain within specified limits.

Low Solar Absorption (LSA) Coatings

Low solar absorption (LSA) coatings are designed to reduce the heat load and infrared signature of the ship. Interior compartments with one or more bulkheads forming a section of the superstructure stay cooler during warm weather, which benefits both sailors and equipment. LSA topcoats contain additional pigments that increase reflectance without sacrificing color or gloss.

Surface Preparation

To ensure proper coating adhesion, special attention should be paid to the surface preparation of the deck. For steel substrates, NSI 009-32 requires a surface that meets one of the following cleanliness standards: SSPC-SP 10/NACE 2, Near-White Metal Blast standard or SSPC-SP WJ-2/NACE WJ-2, Very Thorough Waterjetting. Existing nonskid walk areas may also be “Green Cleaned” using high pressure water cleaning (HPWC) with vacuum self-contained equipment to an SSPC-SP WJ-4/NACE WJ-4, Light Waterjetting condition.

Depot Repairs

NSI 009-32 is the governing document for preservation requirements. Permitted coatings are specified in Table 2. All nonskid walk area coating system preservation efforts must be accomplished in accordance with NSI 009-32.

Ship’s Force Repairs

Ship’s force personnel are primarily responsible for maintaining the ship’s nonskid walk area coating systems until repair activity maintenance is scheduled. Naval Ships Technical Manual: Chapter 634 (NSTM 634), Deck Coverings – General provides requirements, instructions, and guidance for surface preparation and coating application.

New Construction Ships

New construction ships are painted in accordance with the ship build specification for that class of ship.