Sf4000 keep or toss?

[GCAudiA3]

Got into the hobby quite a while ago and bought several products including this polish. I've read this was replaced by an updated formula. Can anyone inform me what the Polish was normal used for and which products should be followed up with ? Is it to aggressive for a beginner or should I be used on slight defects or swirls ?

[CarolinasFinestDetailing]

Its a decent finishing/jeweling polish. HD polish is my go to now.

[GCAudiA3]

I just bought a bottle of 3d HD AIO.. oh so this is a finishing polish? I thought this was a little more aggressive then that

[kevincwelch]

SF4000 is a nice finishing polish with just a mild amount of cut. Use it with a finishing pad (e.g., Lake Country white). I believe the reformulated version of it is SF3500. It is not an AIO polish, so after you use it, you need to prep the paint and apply a wax, sealant or coating. I have been using it for a while, and it is a bit oily, but it has a long working time with no dusting.

I am starting to use HD Polish (not Speed, although I like HD Speed) as my finishing polish, although I go back to SF4000.

[GCAudiA3]

So it doesn't require another polish to even out just a finished sealant or wax?

[kevincwelch]

One could take it a step further with a jeweling wax or SF3800 (previously SF4500), but for anything other than Competition Ready cars, SF4000 (now called SF3800) is going to be your final destination before the wax or sealant.

(Sent from my mobile device.)

[LSNAutoDetailing]

If you want to toss it, I'll give you an address to toss it towards. LOL :)

As others have said, it's a great finishing polish, with a great reputation. Use it, you'll love it!

[GCAudiA3]

I actually just found a bottle of Wolfgang total swirl remover so I guess I could use that for anything that needs more correction

[asap2stacks]

Send it to my shop don't toss it lol

[Rsurfer]

one could take it a step further with a jeweling wax or sf3800 (previously sf4500), but for anything other than competition ready cars, sf4000 (now called sf3800) is going to be your final destination before the wax or sealant.

(sent from my mobile device.)
sf4000 & sf4500=sf3800?

[AZpolisher15]

One could take it a step further with a jeweling wax or SF3800 (previously SF4500), but for anything other than Competition Ready cars, SF4000 (now called SF3800) is going to be your final destination before the wax or sealant.

(Sent from my mobile device.)
I believe 4000 is now 3500.

[kevincwelch]

I believe 4000 is now 3500.

Yes. Absolutely correct -- my bad. SF4000 -> SF3500. SF4500 -> SF3800.

[dlc95]

One of the best finishing polishes made.

[mwoolfso]

I have used SF4000 as a 1-step many times. It's in my top 3. Use it and enjoy it.

[oldmodman]

I am still using the even older version, PO85rd. I am three quarters of the way down on one quart and I have another in reserve. I use it only for very soft paint or, as I normally use it, for jeweling with a black super soft pad.

Unless something has gone wrong with a product there is never any reason to toss it. unless you just absolutely must be using the very latest and greatest. The only thing I ever worry about (going bad) are multi year old coatings.
Of which I seem to have several left.