which sander for wet sanding?

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sansa

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Hello everyone. I'd have a question about wet sanding for you. What are the electric sanders indicated for wet sanding? I'm about to buy a new sander and there are many options. I'd like to start with an economic one. The man at the counter said me its absolutely necessary to have a pneumatic one for wet sanding but I really can't understand the reason why... There are orbital and rotorbitale or normal ones with a quadrangular surface. Why not normal ones?
Thanks so much for your help
 
The Porter Cable is double insulated. Should pose no problem with a piece of wet sandpaper and a little soapy water for lubrication.

Sent from my KFSOWI using Tapatalk
 
Need to check with your tool manufacturer.

People use machines just like ours, to polish granite/quartz with a steady stream of water.
 
Wet Sanding needs Air
Damp sanding you can use DA Electric, provided you have the proper ground fault breaker.
 
Detail-Impressions said:
Wet Sanding needs Air
Damp sanding you can use DA Electric, provided you have the proper ground fault breaker.
Click to expand...

Not true

The type of sanding done on automotive paint is not really "Wet"

The water is not coming in contact with the electrical components of the machine

That being said, the reason pneumatic is preferred is that the pneumatic has less torque than a DA, which makes it less likely to damage the paint when accidentally turned up on edge (scalloping). Because it has less torque it will stop rotating before the damage is done

Mike P has a decent video on why the FLEX is not the best option for wet sanding
 
AGOatemywallet said:
Not true

The type of sanding done on automotive paint is not really "Wet"

The water is not coming in contact with the electrical components of the machine

That being said, the reason pneumatic is preferred is that the pneumatic has less torque than a DA, which makes it less likely to damage the paint when accidentally turned up on edge (scalloping). Because it has less torque it will stop rotating before the damage is done

Mike P has a decent video on why the FLEX is not the best option for wet sanding
Click to expand...

Ok guys thanks so much for the tips. We got two points here:
1. The amount of water used in a wet sanding job is not sufficient to cause damages because of the contact between water and electrical components of the machine (imho it's necessary to wear insulated rubber gloves in any case)
2. Wet sanding is not correlated to the type of machine as the man on the counter told me. Pneumatic types are useful in any case (wet or not) because their property is to preserve the paint during scalloping movements

Is everything correct?

That said I can use any kind of machine to wet sand. But only pneumatic sanders can leave the paint perfectly undamaged...

PS: what about soft backing pads or soft interfaces? Will they prevent damaging when scalloping?
 
AGOatemywallet said:
What do you desire to wet sand?
Click to expand...

A normal work... Paint
I can't understand why there are lots of disagreements. I thought wet sanding with electric sander was a well known technique.

Here is a sander which sprays soapy water during sanding: https://m.youtube.com/watch?v=_SugIW2uJno

OK we can talk about this has batteries and not electricity wires. But really I can't see a difference. To me it's dangerous too....

PS. This video does show that wet sanding doesn't depend on the pneumatic properties
 
I use a reasonable 6" pneumatic from Eastwood. I picked up the hook and loop backing plate, foam interface and Megs paper fromAGO.

It all worked great together. I like the pneumatic better since it's easier to handle with a light air hose
 
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