Rinseless Sponges in 2026

[BLM]

Since the weather has turned I have been doing more rinseless washes, mostly because my vehicles aren't getting as dirty as in winter and now have to deal with water spotting with the warmer, sunnier weather. I stopped using rinseless sponges a couple years ago when I had a bunch of marring on one of my vehicles which I attributed to using a rinseless sponge which may not have been a correct evaluation. So I sidelined my Ultra Black sponge.
in an effort to constantly refine my detailing processes I have started reading some rinseless washing threads and watching a few videos mostly just for tips and tricks. What I found was the sponge seems to be the most common used media in rinseless washing. This caused me to reflect on the reasons for sidelining my rinseless sponge. The marring thing was the big reason but that may have not actually been the case. But then I remembered how using a rinseless sponge didn't remove all the dirt and left dirt suspended in the solution left behind on the paint and having to mop that up with a drying towel.
Another thing I can't seem to get my head around is how using a rinseless sponge is not dragging dirt across the surface but using a microfiber towel flat on the same surface would create marring. I assume the sponge is used on a cushion of presprayed wash where the dirt is encapsulated. Isn't a microfiber towel riding on that same cushion. I fail to see the difference especially seeing as how the sponge carries much of the dirt on or very near the surface and a microfiber absorbs and holds the dirt further into the fibers.
However what do I know and this wouldn't be the first time I assumed incorrectly. So I dug out my Ultra Black Sponge and was immediately taken back by how small it is. A microfiber folded into quarters is still 8 inches x 8 inches. The sponge is no better than 1/2 to 3/4s of that footprint. Larger footprint equals quicker/ less effort washing? Plus one doesn't have to keep returning the sponge to a bucket to rinse it out.
So after resurrecting my rinseless sponge I'm still having doubts about it's practicality vs using multiple microfibers. The biggest thing that most complain about with multiple microfibers is the extra laundry. That isn't really an issue as I wait for a full load of microfibers, approx 30 or so pieces, which is a mix of microfibers/drying towels/ wash mitts/ things that weren't used with LSPs. The biggest drawback for me at least is having enough microfibers. I currently have 20 Eagle Edgeless towels that are dedicated to rinseless washing only. That means I can do 4 washes before I am out of rinseless towels and either have to do a laundry load or do a wash with a mitt and shampoo.

 

[Pats300zx]

I hear you. I go back and forth between spongers and microfibers. One thing I noticed is that the sponges leave a ton of extra water on my garage floor when I use them. I feel microfibers are easier to use. I throw half a dozen to soak while I get things ready. My washes also seem faster cause I am not constantly going back and forth to the wash bucket. I just flip the towel to a clean side and move on. I only go back to the bucket to get a clean one and now have eight sides to use.

Using microfibers also makes my rinseless wash last longer. I put a lid on it and can use it again if I need to. Have bugs on my windshield that need cleaning? Open the bucket, dip a towel in, and go to town. I would never save my water after using a sponge as it it just to contaminated.

 

[BLM]

Using microfibers also makes my rinseless wash last longer. I put a lid on it and can use it again if I need to.

I usually do one of two things with the remaining rinseless that's in the wash bucket. I also use a pump sprayer that I charge with a compressor for the presoak. I'll either dump it in the pump sprayer for later use or I'll use it to clean the toilets in the house. Figure that's better than dumping it in the street. Also when I was using a sponge I used a rinse bucket. Don't care what anyone says about just returning the soiled sponge to the wash bucket for rinseing. When one sees how much dirt is in the rinse bucket I can't imagine putting all that dirt into the wash solution.

 

[Bri26]

A few things that I learned is that a sponge releases the dirt better in comparison to a microfiber towel which tends to hold onto dirt. A sponge is also less abrasive than a microfiber towel. This is why foam polishing pads are less aggressive than microfiber polishing pads. The McKee's 37 gold sponge is soft and works extremely good as a rinseless wash media. When I do a rinseless wash, I squeeze out the sponge over the ground after doing each panel and then redunk it into the bucket. I find this releases the majority of the dirt before reintroducing it into the wash bucket. My wash bucket is always very clean at the end of the wash.

 

[Pats300zx]

A few things that I learned is that a sponge releases the dirt better in comparison to a microfiber towel which tends to hold onto dirt. A sponge is also less abrasive than a microfiber towel. This is why foam polishing pads are less aggressive than microfiber polishing pads. The McKee's 37 gold sponge is soft and works extremely good as a rinseless wash media. When I do a rinseless wash, I squeeze out the sponge over the ground after doing each panel and then redunk it into the bucket. I find this releases the majority of the dirt before reintroducing it into the wash bucket. My wash bucket is always very clean at the end of the wash.

Great idea. I might try this. If I'm working in my garage I can always squeeze it into an empty bucket. This should help keep m rinseless bucket cleaner.

 

[BLM]

Great idea. I might try this. If I'm working in my garage I can always squeeze it into an empty bucket. This should help keep m rinseless bucket cleaner.

If you are going to use another bucket anyway, why not just make it a rinse bucket? To me that makes more sense than squeezing out 75% of the dirt. One is still putting dirt in the wash solution. Some say it all goes to the bottom of the bucket but it certainly doesn't do so within the 4 seconds one is agitating the sponge on the grit guard. I suspect it is getting dispersed throughout the entire bucket at that point.