Short discription about luminous paint

1. LUMINOUS PAINT
Presented by:
Divya Raghute

2. Paint
Paint is any pigmented liquid, liquefiable, or
solid mastic composition that, after application to
a substrate in a thin layer, converts to a solid film.

3. Characteristics of paint:
• It is most commonly used to protect, color, or provide texture.
• Paint can be made in many colors and in many different types
• Paint is typically stored, sold, and applied as a liquid, but most
types dry into a solid.
• Most paints are either oil-based or water-based and each has
distinct characteristics.
• We apply paint for Decoration, Protection, Identification and
Sanitation.

4. What is paint
made of ?
Pigment – to provide color, hiding
and control gloss.
Resin – the binder to hold the
pigment particles together and
provide adhesion to the surface
painted.
Solvent – to act as a carrier for the
pigments and resin – the solvent
may be organic (such as Mineral
Turps) or water.
Additives – to enhance certain
properties such as ease of brushing,
mould resistance, scuff resistance,
drying and sag resistance.

5. Components of Paint:
Paints are prepared by intimately mixing various
components in proper proportions.
Following are essential components of paint:
• The Vehicle
• Base
• The Pigments
• Solvents (Paint Thinner)
• Extenders

6. Qualities of Good Paints:
1.Good Hiding Power
2. Color
3. Resistance
4. Easy Application
5. Economical in Cost

7. What is Luminous Paint?
• Luminous paint or luminescent paint is paint that
exhibits luminescence.
• Is a kind of paint that gives off visible light and that glows in
the dark.
• Luminous paint glows in the dark because it contains a
phosphor, a substance that emits light for a certain length of
time after exposure to an energy source, such as ultraviolet
radiation.
• It is made from phosphors such as silver activated zinc
sulfide or doped strontium aluminate and typically glows a
pale green to greenish blue color.

8. Types of luminous paint
Florescent
Paint
Phosphor
-escent
paint
Radiolumi
-nescent
paint

9. Fluorescent paint
• Fluorescent paints 'glow' when exposed to short-wave ultraviolet
(UV) radiation.
• These UV wavelengths are found in sunlight and many artificial lights,
but the paint requires a special black light to view so these glowing-
paint applications are called 'black-light effects'.
• The fluorescent chemicals in fluorescent paint absorb the invisible
UV radiation, then emit the energy as longer wavelength visible light
of a particular color.
• Fluorescent paints are made in both 'visible' and 'invisible' types.
Visible fluorescent paint also has ordinary visible light pigments, so
under white light it appears a particular color, and the color just
appears enhanced brilliantly under black lights.
• Invisible fluorescent paints appear transparent or pale under daytime
lighting, but will glow under UV light.

10. Phosphorescent paint
• Phosphorescent paint is commonly called "glow-in-the-dark"
paint.
• It is made from phosphors such as silver-activated zinc sulphide
or doped strontium aluminate, and typically glows a pale green to
greenish-blue color.
• The mechanism for producing light is similar to that of fluorescent
paint, but the emission of visible light persists long after it has
been exposed to light.
• Phosphorescent paints have a sustained glow which lasts for up to
12 hours after exposure to light, fading over time.
• This type of paint has been used to mark escape paths in aircraft
and for decorative use such as "stars" applied to walls and
ceilings.
• Phosphorescence can be used for temperature detection or
degradation measurements known as phosphor thermometry.

11. Radioluminescent paint
• Radioluminescent paint is a self-luminous paint that consists
of a small amount of a radioactive isotopes (radionuclide)
mixed with a radioluminescent phosphor chemical.
• The radioisotope continually decays, emitting radiation
particles which strike molecules of the phosphor, exciting
them to emit visible light.
• Radioluminescent paints will glow without exposure to light
until the radioactive isotope has decayed (or the phosphor
degrades).
• Previously radioluminicesent paints were used extensively
on watch and clock dials and known colloquially to
watchmakers as "clunk".
• Radioluminescent paint contains Radium, Promethium,
Tritium based paints.

12. Thank
you