BT 5 Paints and Walls

Chalking

A common paint film defect where progressive powdering from the surface inward occurs

Pigment

Finely divided solid particles added to the vehicle to contribute color and durability to paint

JACINTO COLOR STEEL

Pre painted long span roofing manufacturer

PRIMER SEALER

They are used for unpainted surfaces or those to be repainted after most of the original paint has been removed

BLISTERING

A paint defects causes by applying a finish coat over too damp a base coat

WEATHERING STEEL

A type of steel that develops a protective oxide coat on its surface upon exposure to the elements so that the painting is not required for protection

CHALKING

A common paint film defect where progressive powdering from the surfaces inward occurs

GLAZING PUTTY

The paint materials used for sealing, filling, correcting surface defects on wood surfaces

VEHICLES

The substance in the paint which gives continuity and provides adhesion to the surface or subtrite

DUCO

A type of paint that produces a very smooth and glossy surface and sometimes referred to as pigmented lacquer

SOLVENTS

A liquid component of a paint to increase its fluidity, they volatize or evaporated during drying and not became part of the film

ENAMEL

A special type of paint made with varnish as the vehicle, applied in wood and metal

CHECKING

A paint defect coat by soft undercoat, forming shallow cracks at closely spaced but irregular interval

EMULSIFIERS

It is not a vehicle of paint

ALLIGATORING

An incomplete form of peeling where the paint cracks into the large segments, the edges of which breakaway from the surface while the center remains attached. Usually due to repeated application of new coats over old coats

BLEEDING

Discoloration of coating caused by soluble color in the underlying surface, may be prevented by applying an impermeable undercoating

BLISTERING

Formation of blisters or pustules in coating, may be due to underlying spots of grease, the sun during the process of drying

CHALKING

Progressive powdering from the surface inward

DEADENING

Loss of luster, due to insufficient or defective undercoat, improper filling of wood

MOISTURE BLUSH

Clouding of the lacquer film through precipitation of moisture in the film

ORANGE PEEL

Rough appearance resembles very closely the peel of the orange, improper surface cleaning

PEELING

Indicate imperfect attachment to the surface; due to dampness, greasy surface and moisture

PINHOLING

As it called, changes in atmospheric conditions during application over sweating or incompletely dried undercoats, spots of grease or soap

RUNS AND SAGS

Irregularities of surface due to uneven flow of varnish or paint, too much varnish, inc brushing

TACKINESS

Adhesive property of incompletely dried coating, it is caused especially in the refinishing of old work, over unclean or greasy surface

WRINKLING

Due to applications of few heavy coats for more thin ones, due to cold weather

FADING

The loss of color of a paint film through exposure to sunlight and weather

BLEEDING

A paint defect by discoloration of coat caused by soluble color in the underlying surface

chalking

A common paint film defect where progressive powdering from the surface inward occurs. It is called