Oil does not bead up on waxed surfaces primarily due to the differences in surface tension and adhesion. Wax creates a hydrophobic surface that repels water but can allow oil to spread out more evenly, as oil's surface tension is lower compared to water. Additionally, the chemical properties of wax and oil can result in poor adhesion between the two, preventing the formation of distinct beads. As a result, oil tends to form a thin film rather than distinct droplets on waxed surfaces.
Most waxes are petroleum based, just like gasoline. Therefore, they have similar properties and mix, whereas water has significantly different properties, causing it to 'bead up' and form droplets on the surface.
When you drop one drop of water on waxed paper, the water will bead up and form a circular shape due to the hydrophobic properties of the wax. This occurs because the wax repels the water, preventing it from spreading out or being absorbed into the paper.
Short Answer:One expects mercury, like water, to bead more on a waxed surface and less on a painted or metallic surface.Explanation:The phenomena of beading of any liquid depends on the density of the liquid and the interfacial surface tension between the liquid and the surface with which it is in contact.Mercury has a large surface tension normally. The mercury-air interface has a surface tension of about 482 dynes/cm compared to water-air which is about 72 dynes/cm. Both of these are larger than most other liquids. The water-mercury interface has a surface tension of 415 dynes/cm.Both water and mercury decrease surface tension when in contact with a polar medium such as an alcohol.Wax is very non-polar while paint is presumably slightly polar. Of course, metal would be more polar. (Perhaps polarizable is a better term.) One expects mercury, like water, to bead more on a waxed surface and less on a painted or metallic surface.
A waxed car is not hydrophilic, it is not wetted with water. A drop of water falling on such a surface does not speak out wetting the surface. Instead the surface tension of the water drop pulls it into a spherical shape that sits on top of the surface until it either slides off or evaporates.
Hydrophobic surfaces have a low affinity for water molecules, causing water to bead up and roll off the surface instead of sticking to it. This is due to the surface's molecular structure, which repels water molecules and prevents them from adhering.
the high gloss acrylic would bead up and not give you an even application over the oil based
No, copper surfaces are typically hydrophilic, meaning they have an affinity for water and will readily allow water to spread across the surface rather than bead up.
Wet paint beads up on some shiny, smooth surfaces due to surface tension, where the paint molecules are more attracted to each other than to the surface. On other surfaces, the paint spreads evenly due to good wetting properties, where the paint molecules form strong bonds with the surface, allowing it to flow and cover the surface uniformly.
A waxed car is not hydrophilic, it is not wetted with water. A drop of water falling on such a surface does not speak out wetting the surface. Instead the surface tension of the water drop pulls it into a spherical shape that sits on top of the surface until it either slides off or evaporates.
Water forms spherical drops on hydrophobic surfaces because the molecules have a tendency to minimize contact with the surface due to surface tension. This shape reduces the surface area in contact with the surface, allowing the water droplet to bead up into a more stable and energetically favorable shape.
i do not know :D
man up and get it waxed!