Anti-Slip paint for Metal
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Anti-slip paint for metal is a specialized coating that is applied to metal surfaces to increase their traction and reduce the risk of accidents due to slipping. This type of paint is particularly important for use on metal stairs and ramps, as these surfaces can be extremely slippery when wet or worn down. This poses a significant slip-and-fall hazard to pedestrians.
One of the leading companies in the supply and distribution of anti-slip paint for metal is Slip No More. This company has a reputation for producing high-quality, durable coatings that are able to withstand the wear and tear of heavy foot traffic while also providing excellent slip resistance.
One of the key benefits of using Slip No More’s anti-slip paint for metal is its versatility. It can be applied to a wide range of metal surfaces, including stairs, ramps, and walkways. This makes it an ideal solution for a variety of applications. In addition, the paint is easy to apply and dries quickly, making it an efficient and cost-effective choice for businesses and property owners.
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The answer is simple: safety. Slips and falls are a leading cause of accidents, and metal surfaces can be particularly treacherous when they become wet or worn down. By applying anti-slip paint, you can significantly reduce the risk of accidents and help ensure the safety of your employees, customers, and other pedestrians.
In addition to its safety benefits, anti-slip paint for metal is also highly durable and long-lasting. When applied properly, it can withstand the wear and tear of heavy foot traffic and maintain its slip-resistant properties for an extended period of time. This makes it an excellent choice for businesses and other organizations that need to ensure the safety of their employees and customers on a daily basis.
Overall, anti-slip paint for metal is an essential safety measure for any business or property owner. By choosing Slip No More as your supplier, you can trust that you are getting the highest quality products. They are also the most durable coatings available on the market. Whether you need to improve the safety of your stairs, ramps, or other metal surfaces. Slip No More has the solution you need to keep your employees and customers safe and secure.
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RELATED ARTICLES: How non-slip stair paint can help you
Slip No More operates in over 20 countries across four continents. To contact each office, follow these links:
Africa-Slip No More South Africa
Europe-Slip No More United Kingdom
Canada-Slip No More Canada
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Galling is a common problem with metal parts. It happens when two sliding metal surfaces unexpectedly stick to one another, causing frictional damage and ultimately unwanted cold welding.
Most often seen in sliding parts like threads, fasteners, bearings, cylinders, and pistons, galling can also occur during metalworking — when microscopic pieces of the workpiece adhere to a machine cutting tool, for example.
Fortunately, there are several ways to prevent galling, both during manufacture of the metal parts and during their operational life. Material choice, surface treatment, and effective lubrication are some of the best strategies for reducing galling. However, some parts and materials are inherently vulnerable to the problem, limiting their lifespan.
This article looks at some strategies to avoid galling on sliding metal parts, with a particular focus on the manufacturing side: materials, manufacturing processes, and surface treatments.
Why does galling happen?
Galling occurs when sliding surfaces adhere to each other. Friction and adhesion between the two surfaces tears the sub-surface crystal structure of one surface, causing it to transfer to the opposing surface. The visible raised lump that results from the phenomenon is the “gall.”
This phenomenon occurs because even smooth-feeling parts have imperfections — tiny peaks and troughs — at the microscopic scale. The microscopic peaks or asperities of each material make contact, causing friction.
Several factors can exacerbate the severity of galling. They include:
Galling often occurs with small parts like threaded fasteners. It poses a serious risk in industrial processes if left untreated. Seized threads may lead to the breakage of the fastener or the entire assembly.
The problem of galling can lead to equipment failure and require expensive maintenance, leading to production delays and wasted resources.
Ways to prevent galling
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There are several ways to prevent or minimize galling of sliding metal parts. Here we focus mainly on the ways that manufacturers like 3ERP can help prevent galling (materials and production) rather than the ways that part end-users can prevent it (lubrication and maintenance), though both are important.
Some materials are more prone to galling than others. In general, harder materials are more resistant to galling than softer ones, though other considerations must also be made.
Some of the most galling-prone materials include aluminum, titanium, and austenitic stainless steel. However, these materials are often required due to their other desirable properties, such as strength, corrosion resistance, and machinability. If these materials are not essential, then alternatives like brass, bronze, and cobalt are much better at avoiding galling.
Galling can be less likely to occur if the two sliding surfaces are two different materials, due to their dissimilar atomic structures.
As we have discussed, materials with higher work-hardening rates are less prone to galling. Besides material selection, hardness of a material can be improved with certain metal surface treatments.
For stainless steels in particular, methods such as heat treatment, carburizing, and nitriding can all reduce damage caused by galling.[1]
Rough surfaces can exacerbate galling, as the asperities of each surface can become interlocked. On the other hand, very smooth surfaces can also result in galling, as the lack of texture on the surface means that lubricant cannot be captured and kept in place by the material.
The ideal surface roughness to prevent galling is above 0.25 mm Ra and less than 1.5 mm Ra.
Surface finishing treatments such as grinding, polishing, and buffing can be used to reduce the roughness of materials with a surface roughness greater than 1.5 mm Ra, while treatments like coarse abrasive blasting can be used to increase surface roughness (while also masking surface defects).
Parts susceptible to galling can be treated with anti-galling coatings that are formulated to reduce friction. One possible type of coating is tungsten disulfide, which acts as a dry film lubricant. Unlike wet lubricants, which are applied and re-applied before assembly and usage, tungsten disulfide doesn’t attract dirt and debris.
Another option for reducing galling is electroless nickel or chromium plating, which can also improve corrosion resistance. Plating may be particularly effective if applied to just one of the two sliding surfaces.
Another popular anti-galling coating is diamond-like carbon (DLC), which can significantly increase the hardness of the surface a metal part.
Surface pressure can be reduced and galling minimized by increasing the contact area between sliding surfaces. When designing parts, maximize the contact surface area if possible. The design should allow allow for adequate lubrication of the sliding parts — cavities or holes can assist with lubricant retention in the contact zone.
Specifying tolerances is also important during design. Sliding parts should have sufficient clearance to minimize friction while allowing them to function as intended.
Effective lubrication is one of the key strategies for preventing galling of sliding metal components. Lubrication reduce friction and contact temperature, also acting as a protective layer between two surfaces.
Common lubricants for preventing galling include specialty anti-galling lubricants, grease, oil, and anti-seize solutions.
Ordering metal parts from 3ERP
3ERP is a trusted provider of metal parts and prototypes using processes like CNC machining, sheet metal fabrication, metal additive manufacturing, aluminum extrusion, and metal casting.
We offer an extremely wide range of material options, as well as surface finishing treatments like bead blasting and chrome plating, helping you develop sliding parts that resist galling and other challenges.
Request a free quote on your next sliding metal parts.
[1] Ives LK, Peterson MB, Whitenton EP. The mechanism, measurement, and influence of properties on the galling of metals. Oak Ridge National Lab.(ORNL), Oak Ridge, TN (United States); National Inst. of Standards and Technology (IMSE), Gaithersburg, MD (USA). Ceramics Div.; 1989 Dec 1.
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