abh1 chapter 2 nonskid

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prior to using nonskid compound you should consult what chapter of the Naval Ships' Technical Manual?: chapter 634
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what type of nonskid coating is used on the carrier landing area?: the nonabrasive type nonskid

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the helicopter landing pads require what type of nonskid?: the abrasive type nonskid

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how long is the shelf life of nonskid materials?: 1-year

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should the two component kits used to make nonskid be interchanged with different manufactures?: componets from different kits are NOT interchangeable
what is the reason for premature nonskid failure?: 1) improper application
2)poorly prepared surface

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what is the purpose of primer in relation to nonskid?: improve the adhesion of the nonskid coating and prevents rapid failure

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before removing old nonskid what precautions must be taken to protect equipment and deck penetrations?: deck drains, washdown nozzles, tiedown cups catapult tracks, zipper tracks, and all deck opening must be covered

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the deck covering should extend how far past a deck opening onto the deck when preparing for nonskid removal/application?: the covering should extend at least 1/2 inch past the opening onto the deck

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why should one tiedown crossbar near the refueling area be left cleaned to the bare metal and masked prior to nonskid application?: this clean tiedown crossbar will be used for grounding

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nonskid is subcategorized into what two different compositions?: 1)Composition G
2)Composition L

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how many different types of nonskid are there?: 4 different types

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what is composition G nonskid for?: composition G is for general use and has an abrasive coating

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what is composition L nonskid for?: composition L is a limited use, non-abrasive coating

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composition L nonskid can only be found what types of nonskid?: this composition is found only in type 1 and 2 nonskid systems

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composition G nonskid is available in what types of nonskid systems?: this composition is available in each type of nonskid 1-4 system type

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what is type 1 nonskid?: high durability, rollable deck coating

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what is type 2 nonskid?: standard durability rollable or troweled deck coating

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what is type 3 nonskid?: standard durability, rollable resilient deck coating

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where is type 3 nonskid used?: this coating is used on
1)exterior wooden decks
2)GRP
3)metal decks where flexibilty is required and where increased weight is not a factor

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what is type 4 nonskid?: standard durability, sprayable deck coating

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flight deck impact areas and catapult tracks (metal decks) aboard carriers require what type of nonskid?: type 1 or 2, Comp L

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hanger deck, flight deck traffic parking areas and aircraft elevators (metal decks) aboard carries require what type of nonskid?: type 1 or 2, Comp G

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hangar decks and helipads(excluding skid configured zones) aboard air capable ships require what type of nonskid?: type 1 or 2, Comp G

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helipads (skid configured zones) aboard air capable ships require what type of nonskid?: type 1, Comp G

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flight decks (metal decks) (excluding carriers) aboard air capable ships require what type of nonskid?: type 1 or 2, Comp G

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all ships exterior passagewys and interior decks require what type of nonskid?: type 3

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all vertical replenishment areas, weather decks, exterior passageways, and interior decks require what type of nonskid?: type 1 or 2, Comp G
or
type 4

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the most effective method of removing nonskid systems, scale, rust, and contamination is by what method?: centrifugal blasting

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what size profile should be left on the deck?: 3-4.5 mil profile

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after an abrasive blast how is the surface profile determined?: by using a replica tape system

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replica tape measurement readings of the surface profile are kept where?: are kept as part of a permanent record of a nonskid job

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how is the replica of the surface profile measured?: by the use of a micrometer

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controlling the standard mil profile is dependent on what?: the size of shot in relation to the speed of the blasting machine

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for application of primer how should the surface appear?: a near white metal blast cleaned surface is required

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how soon should the primer be applied after the metal is cleaned?: to lessen the possibility of rusting or other surface contamination the primer should be applied 1 hour after the metal is cleaned

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what is the maxium time allowable to apply primer to cleaned metal?: six hours

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if primer is not applied within six hours of being abrasive blasted what action should be taken?: the surface must be brush blasted

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what is hydroblasting?: the use of fresh water striking a surface to remove the existing coating

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what is the primary advantage of hydroblasting?: 1)no dust pollution
2)less waste to dispose
3)no FOD
4)less disruption of other ship work

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what amendments are the hydroblast facility required to comply with?: 1)Clean Air Act
2)Clean Water Act

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high pressure hydroblasting operates at what pressures?: between 680-1,700 bar (10,000 to 25,000PSI)

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what does Ultra High Pressure operate at?: 25,000PSI

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what are two types of surface prepartion power cleaning tools used for small nonskid repair areas?: 1)the tennant
2)the descobrader

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how is it possible to remove old or worn coatings, profile the deck, and clean any residual contaminants by using the descobrder?: through interchangeable heads

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when using the descobrader controlling the machine for removal of coatings and profiling is accomplished by what means?: by a counterweight located on the top of the unit

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name two rotary descaler and deck peening apparatuses?: the tennant and the descobrader

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where optimum slip resistance and heavy wear resistance is required how should the nonskid material be applied?: roller or trowel

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how should the method of nonskid removal be determined?: select the fastest method of removal that will cause the least damage to the underlying metal surface

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what is an indication that a area of nonskid surface sould be resurfaced?: patches of the nonskid are easily removed by chipping or scraping

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what is the cure time of primer?: generally between 6-12hours depending of the weather

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when repairing small area nonskip how far beyond the damaged area should the deck be scaled?: 6-10 inches in undamaged nonskid area

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the primer should be mixed per the intructions of whom?: the manufactuer

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when applying the primer by rolling how should the roller be outfitted?: rollers should be outfitted with a nap range between 3/4" to 1"

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the target surface profile of properly cured nonskid should be what?: betwwen 1/32"(minimum) to 1/16"(max)

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what is the typical traffic allowed in relation to the curring time of nonskid?: 1)foot traffic=24hrs
2)vehicular traffic=48-72hrs
3)fully cured=after 7 days

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how wide should wheel-stop coaming marking be?: 12" wide

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bulkhead VLA markings are place how high from the deck and at what intervals?: 14' up from the deck at 10 frame intervals

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where could you find the standard certification requirements and inspection procedures for VLA marking for aircraft carriers?: Visual Landing Aids General Service Bulletin No.8

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standard certification requirements and inspection procedures for VLA marking for amphibious ships can be found where?: Amphibious Assault Ship Aviation Facilities Bulletin No.1
in what manner may primer be applied?: either by rolling or spraying

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