If the coating becomes still thicker, a peeling type failure finally can occur.

Inevitably, the zinc coating becomes breached, either by cracking or physical damage.

When the transition to nacre secretion occurs, the brown pebble becomes covered with a nacreous coating.

Most pickup, feed, and separation rollers have a rubber coating which eventually suffers wear and becomes covered with slippery paper dust.

Such methods obviously make the system less sensitive to scratches or defects in the coating, since extra inhibitors can be made available wherever metal becomes exposed.

In some cases, the negative potential of magnesium can be a disadvantage: if the potential of the protected metal becomes too negative, hydrogen ions may be evolved on the cathode surface leading to hydrogen embrittlement or to disbonding of the coating.

The precious metal coating becomes increasingly visible the more the glass is fumed.

Thermochromic paints are seen quite often as a coating on coffee mugs, whereby once hot coffee is poured into the mugs, the thermochromic paint absorbs the heat and becomes colored or transparent, therefore changing the appearance of the mug.

Remove the clothing, and before the tar becomes perfectly cool, with a broad flat brush, apply a thin, smooth coating to the entire surface of the body and limbs.

While the tar remains soft the flea becomes entangled in its tenacious folds, and is rendered perfectly harmless ; but it will soon form a hard, smooth coating, entirely impervious to his bite.

Late 20th century ones had a single, thicker coating of polyethylene cross-linked to provide the correct degree of brittleness.

Manta rays have a much thicker mucus body coating than other rays.

The hand is usually dipped more than once to allow a thicker wax coat to form, making the coating stay warm for longer and less likely to break or tear prematurely.

In 1984, the coating of Japanese lacquer was found a little decayed, and a new coating as well as gilding with gold-leaf, much thicker than the original coatings ( 5 / 10, 000mm instead of 1 / 10, 000mm ), was completed in 1987.

The audibility of print noise caused by contact printing depends on a number of factors: 1 ) the amount of print due to conditions of time and storage ; 2 ) the thickness of the base film that acts as magnetic barrier ( thin C-90 cassette tapes are more susceptible than studio mastering tapes that use a base film four times thicker ); 3 ) the stability of the magnetic particle used in the tape coating ; 4 ) the speed of the tape ( the wavelengths of the prints shift so that higher speeds move printed signal closer to the range where the ear is more sensitive ); the dynamics of the musical program ( very quiet passages adjacent to sudden loud signals can expose the print signal transferred from the loud signal ); and the wind of the tape ( A-winds for cassettes with the magnetic layer facing outward have stronger print signals after a loud signal --" post-print "-- than B-winds used in modern open-reel recorders that have stronger " pre-print " signals preceding a loud passage.

In hard coating applications, the corrosion resistance of thicker coatings is not quite as good as hexavalent chromium.

It was engineered to far greater levels of perceived quality than existing Mazda cars, such as interior plastic, panel gap and thicker paint coating.

Thick film coatings do not depend on how thick the coating is, so long as the coating is much thicker than a wavelength of light.

This is also true for thicker coating layers ( 3λ / 4, 5λ / 4, etc.

The mucus usually contains high amounts of lipids and glycoproteins ; however, the family Pomacentridae ( anemone fish ) have a special adaptation where the mucus coating the species is a great deal thicker.

It can be seen from Fig. 2 that the cutting removal of a coating from its substrate involves pure cohesive failure of the coating.

Consequently, both the rake angle of the knife as well as the friction occurring between the back of the removed coating and the front of the knife will determine in large part the detailed mechanism of the cutting removal process.

**yf can readily be determined by measuring the thickness of the coating before and after cutting from the substrate ; ;

From Fig. 6 the relationship between these parameters can readily be derived and the cutting force is Af where **yl is the shear strength of the coating and is a parameter of the coatings material, W is the width of the removed coating and T is its thickness.

However, in the actual assessment of the cutting force by instrumental methods for any thickness of coating a number of spurious effects occur which must be taken into account and which make the measured value larger than the true cutting force indicated by eqn. ( 1 ).

The measured force, H, in cutting removal of coatings from their substrates consequently can be seen to be the sum of that force required to cut the coating, Af, that due to the bluntness of the knife, Af, and that due to the friction between the bottom of the knife and the substrate, Af, or Af.

The basic difference between the continuous cutting mechanism and that of the chipping mechanism is that instead of shear occurring in the coating ahead of the knife continuously without fracture, rupture intermittently occurs along the shear plane.

Under equilibrium cutting conditions, the chip exerts a force Af against the coating and an equal opposite force Af against the knife in the plane of the substrate as shown in Fig. 6.

The types of jobs available locally include assemblers, assembly coordinators, building and grounds technicians, custodians, cutting machine operators, electricians, fabrication operators, fixture technicians, journeyman toolmakers, machinists, maintenance mechanics, material handlers, metal fabricators, forklift drivers, paint coordinators, powder coating specialists, research-and-development technicians, quality control technicians, sewing and weaving machine operators, shipping / loading / receiving attendants, spinning and rewind machine operators, cutters, stamping operators, welders, and welding coordinators.

This thin copper coating is more resistant to rough handling and the action of cutting fluid.

A thin layer was found coating the cutting edge and probably used to protect it from rust.

This burr should be cleaned or reamed when cutting electrical conduit to prevent stripping of the insulating coating from the wires.

This started with the boule, cutting it into disks called wafers, polishing the wafers, and then, for cell use, coating them with an anti-reflective layer.

100 % solid PSAs may be low viscosity polymers that are coated and then reacted with radiation to increase molecular weight and form the adhesive ; or they may be high viscosity materials that are heated to reduce viscosity enough to allow coating, and then cooled to their final form.

Some of this impact melt rock may be ejected, but most of it remains within the transient crater, initially forming a layer of impact melt coating the interior of the transient cavity.

Surface treatments, coatings or lamination may follow to improve the chemical durability ( glass container coatings, glass container internal treatment ), strength ( toughened glass, bulletproof glass, windshields ), or optical properties ( insulated glazing, anti-reflective coating ).

Like most other intravesical bladder treatments, this treatment may require the patient to lie for 20 – 40 minutes, turning over every ten minutes, to allow the chemical to ' soak in ' and give a good coating, before it is passed out with the urine.

Technical mirrors may use a silver, aluminium, or gold coating ( the latter typically for infrared mirrors ), and achieve reflectivities of 90 – 95 % when new.

In the food industry, where it may be called " wax ", it can be used as a lubricant in mechanical mixing, applied to baking tins to ensure that loaves are easily released when cooked and as a coating for fruit or other items requiring a " shiny " appearance for sale.

Additionally, coating may increase signal / noise ratio for samples of low atomic number ( Z ).

Modern toilet paper may have a light coating of aloe or lotion or wax worked into the paper to reduce roughness.

To limit the spread of fire along cable jacketing, one may use cable coating materials or one may use cables with jacketing that is inherently fire retardant.

The texture and appearance of wood grain may be enhanced and preserved by the use of an appropriate coating process, either transparent, such as varnish or opaque, like paint.

Diatoms are frequently present as a brown, slippery coating on submerged stones and sticks, and may be seen to " stream " with river current.

Meat may also be baked, but this is usually reserved for meatloaf, smaller cuts of whole meats, and whole meats that contain stuffing or coating such as breadcrumbs or buttermilk batter ; larger cuts prepared without stuffing or coating are more often roasted, a similar process, using higher temperatures and shorter cooking times.

Surface functionalization may provide a way to transform a bio-inert material into a biomimetic or even bioactive material by coupling of protein layers to the surface, or coating the surface with self-assembling peptide scaffolds to lend bioactivity and / or cell attachment 3-D matrix.

Mature plum fruit may have a dusty-white coating that gives them a glaucous appearance.

Areas that should not be soldered may be covered with a polymer solder resist ( solder mask ) coating typically 20 – 30 micrometres thick.

Stews may be thickened by reduction or with flour, either by coating pieces of meat with flour before searing, or by using a roux or beurre manié, a dough consisting of equal parts of butter and flour.

The tonsils and back of the throat may be covered with a whitish coating, or appear red, swollen, and dotted with whitish or yellowish specks of pus.

Early in the infection, the tongue may have a whitish or yellowish coating.

A coating of this chemical on a paper or other base may be used to reproduce an image from a translucent document.

Ferrous materials, including steel, may be somewhat protected by promoting oxidation (" rust ") and then converting the oxidation to a metalophosphate by using phosphoric acid and further protected by surface coating.

* The mucus coating of the fish may be based on sugars rather than proteins.