Enamel paint can be defined as the oil-based paint that is used when a highly glossy finish is required. It consists of the white lead, zinc white, resins and other petroleum products. It has characteristic coverage and colour retention property.
It is slow-drying paint as it dries very slowly. It is hard in nature and provides a glossy and opaque finish to the surface where it is applied. It also offers excellent durability and stain resisting properties.
It may also be water-based.
Composition of Enamel Paint
White lead, or red lead, or zinc oxide, or iron oxide, or titanium white, or aluminium powder, or lithophone may be used as the base.
Mostly Linseed oil, or alkyd resins, or acrylic resin, or epoxy resins are used as the vehicle.
3. Extender/Inert Filler:
Usually, the coloured particles are used as the extenders.
Mostly, the varnish or white spirit is used as the solvent or thinner.
5. Colouring Pigments:
The fine powder of mineral colour pigments is used as the colouring pigments.
Various drying additives or pigments such as lead, copper, cobalt, manganese, zirconium etc may be used as the additives.
Uses of Enamel Paint
The uses of enamel paint can be listed as follows:
a. It provides excellent glossy and opaque finish. Thus, it is used extensively for the painting of concrete wall surfaces.
b. It is also suitable for painting the doors, windows, staircases, kitchens and bathrooms.
c. It can also be used for painting the home appliances that are kept outdoors. The enamel paints offer high resistance to moisture, rot, volatile temperatures and other similar environmental conditions.
d. It can be used both on new surfaces and old surfaces.
e. It can be applied on metal surfaces, woodworks as well as aluminium surfaces.
Application of Enamel Paints
The application of paint is comparatively easy. It can be applied easily using rollers and brushes. The manufacturer’s instruction must be thoroughly read before the application of the paint. It is mostly not manufactured in a ready to use the form and thus a small amount of thinner must be added to it prior to the application.
a. Surface Preparation
The surface is prepared using a wire brush or sandpapers. The old coat of paint should be removed finely by scrubbing with sandpapers or wire brushes. The surface should be free from non-uniformity.
b. Cleaning of the Surface
The scrubbed surface should be cleaned properly using the cloth or other cleaning agents.
c. Preparation of Enamel
Paint is prepared according to the manufacturer’s manual by adding a suitable amount of thinner.
d. Application of Enamel
After the preparation; enamel should be applied to the desired surface. Application of paint should be done from top to bottom.
Features of Enamel Paint
a. On the basis of the shade of enamel paint, the range of volatile organic compounds (VOC) may range from 400 to 500gm/l or no volatile compounds at all.
b. The washability or wipe ability property of the enamel paint depends upon the surface sheen and the specifications of the shade.
c. Enamel paint is available in 500ml, 1ltr, 4ltr, 10 ltr, 20ltr packs.
d. The coverage offered by one litre of the enamel paint varies from 70 to 80 sq. ft. area for two coats of the paint.
e. The coverage for single coat is 140 – 160 per litre.