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Low Temperature – freeze paintings placed inside a sealed plastic bag at a temperature of -20 °F (-29 °C) for 4 hours. Overexposure to fluctuations in Relative Humidity and temperature should be monitored when managing pests to prevent damage to the painting. Cradled panel painting, Aert van der Neer
Increased heat from light creates paint soften: 68 °F ± 2° High temperature softens paint. low temperature causes brittle paint. Oil Paint [23] 40–45% or 45–45%: Expansion and contraction of painting, wood and fabric absorb moisture or shrink, paint cracks and flakes, or sags: max 200 lux: Fading or darkening of painting
Enamel paint is paint that air-dries to a hard, usually glossy, finish, used for coating surfaces that are outdoors or otherwise subject to hard wear or variations in temperature; it should not be confused with decorated objects in "painted enamel", where vitreous enamel is applied with brushes and fired in a kiln. The name is something of a ...
Historic paint analysis, or architectural paint research, is the scientific analysis of a broad range of architectural finishes, and is primarily used to determine the color and behavior of surface finishes at any given point in time.
Frost damage is caused by moisture freezing in the construction. Frost damage can occur as cracks, stone splinters and swelling of the material. When water freezes, the volume of water increases by 9 %.
Freezing is a phase transition in which a liquid turns into a solid when its temperature is lowered below its freezing point. [ 1 ] [ 2 ] For most substances, the melting and freezing points are the same temperature; however, certain substances possess differing solid-liquid transition temperatures.
The lining of paintings is a process of conservation science and art restoration used to strengthen, flatten or consolidate oil or tempera paintings on canvas by attaching a new support to the back of the existing one. The process is sometimes referred to as relining.
Excessive light exposure may cause color alterations and loss as well as structural breakdowns in the paint and coatings. [3] Air pollution can also adversely affect outdoor artworks. In addition to meteorological conditions, traditional outdoor pollutants including sulfur dioxide, nitrogen oxides, and ozone affect the various composite ...