Soft pad for Porter Cable 390k Random Orbit Sander

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Forum topic by daviddoria posted 12-20-2014 07:22 PM 1255 views 0 times favorited 7 replies Add to Favorites Watch
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67 posts in 1966 days

12-20-2014 07:22 PM

Topic tags/keywords: sander pad

I’ve seen a lot of videos where I see people sanding and it looks like their sander follows contours much better than mine (I have the 390k). I think this is due to their pad being softer than the stock pad. I know that with some sanders you can buy pads with different hardness, but I emailed Porter Cable and they say that they only sell the “medium” hardness (the one that it comes with). However, they say “As long as the specifications of the pad are met, different pads can be used”. I’m assuming the mean that the mounting holes line up, etc.? Does anyone know of a soft pad that would fit on this sander?



7 replies so far

View Rick  Dennington's profile

Rick Dennington

5912 posts in 3222 days

#1 posted 12-20-2014 07:40 PM

Not sure about soft pads, but you can find about any replacements or parts at different businesses that sell parts for tools…..I buy mine at two places: Tool Parts or Replacement Both carry all major brand tools and excessories….Contact Tool Parts Direct at 1-888-358-0332….Don’t remember the other number…Just Google them to find out more details…..At TPD you can find schematics for your specific tool, and it gives the replacement #s and cost…..

-- " At my age, happy hour is a crap and a nap".....

View daviddoria's profile


67 posts in 1966 days

#2 posted 12-20-2014 09:18 PM

Hi Rick,

I just called eReplacementParts and they also said they only have the PC390k “normal” pad (at least the story is consistent between them and Porter Cable!). I guess my original question here was to see if anyone knew if another brand (Bosch, etc.) had a pad that would work/fit with this sander?

View SASmith               's profile


1850 posts in 3014 days

#3 posted 12-20-2014 10:04 PM

I think an interface pad would work for you.
You put it on when you need to sand contours and pull it off for flat work.

Edited to add:
Here is where I got mine.

-- Scott Smith, Southern Illinois

View Mario's profile


176 posts in 3424 days

#4 posted 12-20-2014 10:14 PM

David, this one works great, make sure you get the interface pad for long durability.,42500&p=59471

View daviddoria's profile


67 posts in 1966 days

#5 posted 12-20-2014 10:30 PM

Ah, interesting. An interface pad makes plenty of sense (and actually sounds much easier than actually replacing the sander/base every time).

Mario, did you mean “make sure you get the platen protector”? I actually don’t understand why the interface pad would wear the hooks on the stock sander base any more than loop sandpaper would? I guess I don’t get what the protector is actually if not just another layer of hook/loop?

View Mario's profile


176 posts in 3424 days

#6 posted 12-20-2014 11:40 PM

David, yes the platen protector, sorry about that, what it does is limits the wear on your sander base hooks. You do add another layer of hook/loop to your base but the heavy wear goes to the protector rather than the base, a lot cheaper to replace anyway, in my experience this wear seems to be more pronounced with Abranet than Norton 3X for example.

View bigblockyeti's profile


5140 posts in 1748 days

#7 posted 12-21-2014 01:12 AM

I have thick soft pads for both my PC 330 and 7335. Don’t know if PC offered this with the 390, but since they’ve been bought by Black and Decker everything seems to have taken a substantial deviation away from quality.

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