dry sanding vs wet sanding high build primer

[pedrobedro]

3M website and Mirka sell random orbital DA sanders.

 

[dunsdale]

i have my own small bodyshop and for primer flatting we

guide coat primer then dry sand by block 320 abranet strips

once blocked

another guide coat

then sand with d.a. with a soft pad 500 disc

we use this process dailly and it works well

used to wet sand 800 wet and dry much to messy clean up afterwards is a pain, dry sanding is mush more user friendly.

Just my opinion

 

[Mr Toasty]

My two Cents, from people in the know, dry flatting is quicker (so cheaper on time) which is why all the insurance garages do it now, and the technology of disks has come along way. I wouldn't say dry sanding is safer ie fine particales of dust to breath in and they don't taste great (many years of choosing not to wear a mask taught me that, will never make that mistake again "yum workplace asthma"). Wet flatting is used for a much flatter and better finish ie. show cars and anything else that you can think of that needs a very good finish. So more time spent the better it comes out. As to mess the dust is more harmful if you're spraying in the same area as it gets everywhere, wet flatting you can just mop it up or wash it away afterwards personal prefrence really.

So in total it's horses for courses really, do your research and choose one depending on time constraint finish and cost.

Sam

 

[dunsdale]

As to mess the dust is more harmful if you're spraying in the same area as it gets everywhere,

Sam

Much better to use dust extraction when dry sanding

i made up a very simple setup works great powerful little hoover takes away almost all the dust

these are abranet strip's hundreds of little holes there is virtually no dust when using this type of strip