 What is varnish ?
:
Varnish is a transparent, hard, protective finish or film
primarily used in wood finishing but also for other materials. Varnish is traditionally a combination of a drying oil, a resin, and a thinner or solvent. Varnish finishes are usually glossy but may
be designed to produce satin or semi-gloss sheens by the addition of "flatting" agents. Varnish has little or no color, is transparent, and has no added pigment, as opposed to paints or wood stains, which contain pigment and generally range from opaque to
translucent. Varnishes are also applied over wood stains as a final step to achieve a film for gloss and protection. Some products are
marketed as a combined stain and varnish.After being applied, the film-forming substances in varnishes either harden directly, as soon as the solvent has fully evaporated, or harden after evaporation of the solvent through certain curing processes, primarily chemical reaction between oils and oxygen
from the air (autoxidation) and chemical reactions between components of the varnish. Resin varnishes "dry" by evaporation of the solvent and harden
almost immediately upon drying. Acrylic and waterborne varnishes "dry" upon evaporation of the water but experience an extended curing period. Oil, polyurethane, and epoxy varnishes remain liquid even after evaporation of the
solvent but quickly begin to cure, undergoing successive stages from liquid or syrupy, to tacky or sticky, to dry gummy, to "dry to the touch", to hard. Environmental
factors such as heat and humidity play a very large role in the drying and curing times of varnishes. In classic varnish the cure rate depends on the type of oil used and, to some extent, on the ratio of oil to resin. The word
"varnish" comes from Latin vernix meaning odorous resin, which etymology comes from Greek Berenice, ancient name of modern Bengasi in Libya, credited with the first use of varnishes. Berenice comes from the Greek words phero
(to bring) + nike (victory). source Wikipedia.org
Please select the varnish for the surface / UV protection (matt or shining) for sizes 90x120 CM +6 Euro bigger than 90x120 CM +12 Euro You can choose this service after the buying.
Please "click me" for the vanish in our shop.
|
) 
