If the composition of nitrocellulose lacquer there, it will be nice shine, different strength, elasticity and will not wear off and crack.
The presence of softeners such as castor oil or difutilftalat, provide coating elasticity and diluents as ethyl or butyl alcohol add viscosity. In the varnish composition to be colored pigments, resins, and synthetic or natural nacre. All components must be placed in a solvent, which is based on an alcohol or acetone. With acids also included in the coating composition, the weight gains homogeneity.
Do not buy varnishes, which is composed of formaldehyde or toluene is a toxic substance, is bad for health.
Any varnish should be beautiful and quality, with a rich color palette, additives in the form of metal particles or mother of pearl.
An important role in choosing a good roofing nails plays kind of bottle, cap and tassel. Choose a brush of medium length, not too soft, but not hard. Put it on the nail, if it takes the form of half parted fan and its villi will not hang around in different directions and break up into separate groups, the choice is really correct.
Do not give preference to bottles with unusual shapes. Strong bends help varnish stuck in them, in a simple jar nail free "floats". Well, if the vial has small balls shaking. Sustained bubble convenient nail in it will not turn over. Inquire whether the length of the brush size vial, and the lid cooperates with a brush.
Be sure to check the varnish falls on the nail. He should not drag and drop one drop. If it lasted a few seconds form, then all right.