The 6 Best Wet Polishers

Updated September 12, 2017 by Brett Dvoretz

6 Best Wet Polishers
Best High-End
Best Mid-Range
Best Inexpensive
We spent 40 hours on research, videography, and editing, to review the top selections for this wiki. Perfect for any type of surface, from concrete to marble, our selection of wet polishers have been rated based on RPM speed, comfort, ease of use, and price, so you can easily find the best tool for your next job. Achieve a smooth and swirl-free finish on your next project with one of these durable models that will last through years of regular use. When users buy our independently chosen editorial picks, we may earn commissions to support our work. Skip to the best wet polisher on Amazon.

6. Flex LE12-3-100

The Flex LE12-3-100 has a quick-fit water connector and a powerful 1,150 watt motor, letting you get the job done as efficiently as possible. It includes a convenient out-of-the-way water feed line to offer optimal tool control as you work.
  • built-in gfci circuit breaker
  • smartly placed speed control dial
  • doesn't have a splash guard
Brand Flex
Model LE123100
Weight 8.8 pounds
Rating 4.0 / 5.0

5. Stadea SWP101K

The Stadea SWP101K is thinner than most other models at its base, which makes it easier to hold onto for extended periods of time with less user fatigue. It is designed to naturally aid you in putting weight onto the polishing surface to make your job less strenuous.
  • evenly distributes water
  • locks on for continuous use
  • allows for quick pad changes
Brand STADEA
Model pending
Weight 9.3 pounds
Rating 4.0 / 5.0

4. Metabo PWE 11-100

Capable of reaching up to 5,400 RPM, the Metabo PWE 11-100 is a beast fit for any job site. It was designed and built to contractor quality standards and meets or exceeds all ANSI/ISEA safety requirements, so you can rest easy that it won't let you down.
  • adjustable d-loop handle
  • good for lefties and righties
  • rarely ever bogs down
Brand Metabo
Model PWE 11100
Weight 8 pounds
Rating 4.0 / 5.0

3. Damo DWP-1257

With an extra long water hose and an effective splash guard, the Damo DWP-1257 reaches everywhere, and lets you stay dry while you work. It features an auxiliary handle that can attached to either side, and is perfect for use on granite or polished concrete flooring.
  • includes seven polishing pads
  • attaches to a standard garden hose
  • cannot be used for dry grinding
Brand DAMO
Model pending
Weight pending
Rating 4.8 / 5.0

2. Makita PW5001C

The Makita PW5001C is powered by a 7.9 amp motor, yet it weighs just a touch over 5lbs, giving it a high power to weight ratio. It maintains a constant speed even when under load, to produce a consistent finish on a variety of surfaces.
  • soft start feature
  • well-made housing
  • easy to control
Brand Makita
Model PW5001C
Weight 8.8 pounds
Rating 4.7 / 5.0

1. Hardin Buddy Rhodes Triad

The Hardin Buddy Rhodes Triad is an exceptionally durable and powerful tool that produces a beautiful finish without any of the swirls many low quality models result in. It is a professional grade set that comes with a polisher and a large planetary base.
  • utilizes diamond abrasives
  • also suitable for grinding
  • variable speed control
Brand Hardin
Model BRTRH3BSET
Weight 26.6 pounds
Rating 4.7 / 5.0

Wet Polishing Versus Dry Polishing

When looking to create a beautiful finish on granite, marble, concrete, porcelain, and other hard surfaces, you have two choices: wet polishing and dry polishing. Wet polishing uses water as a lubricant to cut down on friction and prevent the diamond abrasive pads from overheating. Reducing the friction and heat not only increases the life span of your polishing pads, but can also increase the lifespan of your polisher, since its motor won't have to work as hard.

Another major benefit to wet polishing is that it significantly reduces the possibility of breathing in harmful airborne contaminants created from polishing. The water wets the dust and other particles released during polishing, essentially trapping them before they can become airborne. Unlike with dry polishing, you won't be required to wear a respirator or use a dust collection system. One of the drawbacks of wet polishing is the amount of slurry it creates. Slurry is a mud-like mixture of water and stone or concrete particles that requires extensive clean up. When operating a wet polisher, you will also need to wear full-length rubber apron to prevent the slurry from soaking your clothes.

Wet polishing pads are usually made from a combination of diamond particles and resin. Wet diamond pads are safe to use on almost any type of stone or concrete surface. The pads themselves are usually less expensive than the type of pads dry polishers require, though the polishing machinery is often more expensive, as it has more working components.

Dry polishing doesn't make use of any water, which is why it releases such a large amount of fine dust particles into the air. This is why it requires the use of a good quality respirator. On the other hand, it doesn't create slurry, which often makes it a better choice for use in finished homes or for small polishing jobs. Dry polishing is also more effective at removing surface material, since it is creates more friction. For this reason, many contractors use dry polishers during the initial stages, and then switch over to a wet polisher for the finishing stages.

Dry polishing pads are generally more expensive, as they make use of a harder resin and also need to be able to cope with higher temperatures. While wet polishing can be performed on hard materials, dry polishing is usually a better choice for dense concrete or granite because it will take less time to complete the job.

Choosing The Right Polishing Pad

Oftentimes, the quality of your polishing job will come down to whether or not you picked the right polishing pad. Choosing the wrong pad can result in swirls, gouges, and other unwanted damages to the surface. First, consider the size of the area you will polish. Large diameter pads are the best choice when you need to polish a large, flat surface, but they can be problematic on thin or contoured areas. They will often become unstable on narrow strips and edges. Small diameter pads are better suited to narrow strips and edges, but have a tendency to gouge when you use them on large, flat surfaces. Wet polishers with five-inch pads are a good compromise between being too large and too small. They can handle edges and narrow areas well enough, and are easy enough to control that you probably won't gouge large, flat surfaces.

Next, consider the thickness of the pads that come with your machine, or of those you are looking to buy. Diamond pads generally range in thickness from 2mm to 8mm. Thicker pads last longer, but are stiffer, making it harder to use them on curved surfaces.Thinner pads won't last as long, but are better suited to contouring the edges of a sink or countertop. It is usually a smart idea to have pads in a variety of thicknesses on hand, so you are ready to tackle any aspect of the job.

Finally, you'll want to consider the grit rating. Always use pads with a high grit count for polishing. Be wary of any pad with a 400 grit count or less, as they do more grinding than polishing. If you need to remove a little bit of material to level out the surface as you polish, a pad with 400 or 500 grit is perfect. If you are trying to remove the least amount of material possible and only looking to create a mirror-like polish, choose a pad in the 2000 to 3000 grit range.

Tips For Using A Wet Polisher

When using a wet polisher, always turn the water on before you start grinding. These machines are not meant to be used dry, nor are the pads. Using a wet polisher without water can cause damage to both the machine and the pads. To start, turn the water feed on and set your grinder to maximum water flow. Hold the polisher above the surface you are going to be working on, and then turn it on. Slowly lower it onto the surface. You do not need to put much pressure on the machine; let the weight of the tool do the work for you.

Once you start polishing, it is time to adjust the water flow down to optimum levels. Too much water will create a bigger mess, while too little water causes excessive wear on the tool and pad. Slowly adjust the water level until it just begins to run clear as you polish. If the water looks very muddy, it means that you have your water flow too low. If it is spraying everywhere, you have your water flow too high.

When polishing, keep the pad as flat as possible to minimize the possibility of gouging the surface. Slowly move the machine around in a circular motion. Never stay in one place for too long. To stay safe, always wear a pair of rubber gloves. This protects your hands from cuts and nicks, and can also reduce the chance of electric shock. If working on a porous surface, like concrete or granite, apply some densifier after polishing with a 600 to 800 grit pad. This will help it shine more when you finish polishing with your higher grit pads.



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Last updated on September 12, 2017 by Brett Dvoretz

A wandering writer who spends as much time on the road as behind the computer screen, Brett can either be found hacking furiously away at the keyboard or perhaps enjoying a whiskey and coke on some exotic beach, sometimes both simultaneously, usually with a four-legged companion by his side. He hopes to one day become a modern day renaissance man.


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