Where copper track lifts from a printed board surface after soldering.
The partial delamination of surfaces resulting in a bubbled appearance.
A localized swelling and separation between any of the layers of the printed circuit base laminate and/or between the laminate and the metal cladding. Also, similar swelling in molded parts.
Air bubbles below bituminous felt, asphalt or painted surfaces usually indicating imminent failure of the material.
The end result of poor adhesion by either paint or vinyl to a substrate, leaving the surface covered with bumps of various sizes and indeterminate shapes similar to blisters on the human skin.
A raised or layered patch of material on the surface of the component.
(extended definition) Coating defect: formation of blisters in coating by the local loss of adhesion and lifting of the film from the underlying substrate.
Bubbling between layers of paint or between paint and the surface it is covering, often caused by heat.
Although seemingly dry, paper does contain approximately 5% moisture. In cases where there is excessive moisture, and the paper is passed through a high heat-drying chamber, the moisture within the paper actually boils and causes a bubble or blistering effect.
Paint failure where air pockets form under paint film. Generally caused by applying paint in the sun, or on an otherwise too hot surface.
the formation of bubbles in a cured, or nearly cured surface
A defect in the paint film appearing as bubles, usually caused by the expansion of air, solvent vapor, or moisture trapped beneath the film.
Surface bubbling on a roofing material that is usually caused by moisture trapped below it.
hot enough to raise (or as if to raise) blisters; "blistering sun"
paint bubbles indicating loss of adhesion. Usually caused by: trapped moisture; painting during high temperatures; using oil paints on damp surfaces; high humidity during drying time; painting warm surface in direct sunlight; or painting over heavy chalk. Blocking - two painted surfaces sticking together when pressed together, such as doors and windows. Usually caused by pressing newly painted surfaces together before completely dry; excesssive paint; or recoat before the first coat is dry.
The forming of bubbles on the surface of the finish caused by air that is trapped underneath the surface.
(paint) is bubbles or blisters in the paint film. It is caused by water vapour being attracted by heat and forming spaces beneath the film, or resins from knots in the timber being attracted to heat, or paint being used on surfaces which have extreme heat. To prevent this problem, make sure that the substrate is completely dry before painting. Remove any knots and replace with plugs. Use heat resistant paints for areas that have extreme heat. Select light paint colours as they reflect more heat.
Bubbling that can form on a newly-painted surface. Blistering is sometimes caused by excessive heat, early application of a second coat of paint (before the first coat is dry), or moisture in the painted surface.
The development of hollow bubbles or water droplets in a paint film. It can occur rapidly or over a long period of time after application. Blistering may occur from the presence of unreacted acid within the paint film.
Bubbles or pimples in roofing materials. Usually moisture related. In shingles blisters are either moisture under the material or moisture trapped inside the material.
Effect of pressure from either solvent or moisture under a coating causing a swelling or blister in the finish; i.e. water blister.
This defect is the appearance of irregular blisters on the paint finish. This defect can be caused by: Not correctly cleaning substrate Contamination of the brush, air gun, line etc. Using wrong thinner or incorrect amount of thinners Old paint surface Excess film thickness In timber finishes, not allowing the solvent, particularly paint removers , to evaporate before repainting This defect may be overcome by: Cleaning all surfaces free of grease and allowing the solvent to evaporate. Using recommended thinner at correct ratio. In spray applications, inspect so that water does not build up in the traps, especially in humid weather. Check that the new paint is compatible with the old surface. Do not apply paint films too quickly and allow solvents to evaporate before re-coating.
Formation of dome-shaped projections in paints or varnish films resulting from local loss of adhesion and lifting of the film from the underlying surface.
Bubbling of the print underneath the laminate, usually caused by moisture in the print boiling due to heat during processing. Read more at Trouble Shooting
The formation of dome-shaped, hollow projections of paint.
The formulation of dome-shaped, hollow projections on paint, often caused by heat or moisture. Can also be caused by solvent entrapment in a paint film which has surface dried before the solvent has completely escaped.
a defect in the paper surface due to rapid expansion of moisture. Usually cause by high drying temperatures, high paper moisture or low internal bond strength.
The formation of dome-shaped projections in paints or varnish films by local loss of adhesion to the underlying surface and lifting of the film. Usually caused by applying paint to a surface containing excessive moisture. It may also be caused by excessive heat, or by using paint with poor adhesive qualities.
Bubbling formed during fast glaze firing by expanding air or steam unable to escape; usually avoided by a slow steady firing.
Raised areas on the paint's surface due to volatile substances coming out of the sealer after the topcoat has started to "cure."
The formation of hollow bubbles in the paint film caused by air, moisture, or solvents trapped under the film.
The formation of blisters in toppings or coatings by the local loss of adhesion and lifting of the film from the underlying substrate. On concrete surfaces, this is often caused by moisture vapor transmission problems.
The formation of bubbles or pimples on the surface of finished work.It is caused by exposure to excessive heat,grease or other volatile material under the finish, by moisture in the wood or by the too frequent application of coats. Anything that causes a gas or vapor to form under the film may cause blistering.
Bubbling up of the paint film in the form of small blisters.
Formation of bubbles on the surface of coating usually caused by applying paint to damp surfaces, into which moisture has entered through some indirect source (poor joints, cracks etc) or to surfaces that are too hot. Anything that caused vapour to form under the film may cause blistering. Blistering is usually a sign of poor adhesion of underlying coats of paint.
The forming of bubbles or pimples on the painted surface. Blistering is caused by moisture in the wood, by paint having been applied before the previous coat was dry, and by excessive heat during or after application.
refers to the appearance of broken bubbles found on the glazed surfaces of fired ceramic pieces.
The formation of blisters in toppings or coatings and the loss of adhesion with the underlying substrate. On concrete surfaces, this is often caused by moisture or moisture vapor transmission problems.
The formation of bubbles or pimples on the painted surface caused by moisture in the wood, by painting before the previous coat has dried thoroughly, or by excessive heat or grease under the paint.
A phenomenom which occurs in boat hulls because the materials used to manufacture the hulls is water permeable (generally FRP). The laminate absorbs moisture which collects on the surface, intermediately or deep. Eventually, the pressure from this water buildup is high enough to form bulges in the surface.
Oval or round bubbles visible on coated web sheets.
