Well, I'm just going by what I have seen the couple times I have had to clean my pads full of sealer, they are impossible to clean well, last time I tried to clean it with citrus cleaner, XMT pad cleaner, dawn and APC+ and hot water and I was not able to remove it all from the pad... Even after all that where ever it touched the sink you could see the water sheeting and beading...
Pad cleaners are primarily for cleaning pads that are used with compounds and polishes. The reason for this is because,
anytime you're abrading the paint you're going to have two things on the face of your buffing pad,
Product Residue
Removed Paint
You need to remove this from the pad in order to work clean and maximize the buffing process as well as avoid swirls.
Most compounds and polishes are water soluble, especially if they are part of a professional body shop line, so these products will clean easily out of and off of your buffing pad in any pad wash with a quality pad cleaning chemical.
Waxes and paint sealants by their very nature are NOT water soluble, think about it... if a wax or paint sealant was water soluble, it would wash off in the rain or during a car wash, then you would be unhappy and even angry with the product.
So the fact that a wax or paint sealant is DIFFICULT to wash out of and off of ANYTHING is a GOOD SIGN... be happy...
Most people that are trying to get built-up wax and sealant out of the inside of their buffing pad are using too much wax or paint sealant... depends upon the product and application... it would be normal to have a cleaner/wax build up because if you're working on a neglected surface you should be using the product heavy or wet, thus a build-up.
But a finishing wax being used over a pre-cleaned and polished surface should not be building up because you're not using that much... so maybe take a look at your process.
Well, I'm pretty new here, I may have missed the threads about sealant contamination. Is there a thread I should be reading? I've been around detailing forums since 2004 and this is the first I'm hearing of it.
It's not sealant contamination, it's wax or sealant contamination, anything that isn't water soluble if it gets into your pad cleaning solution is going make an icky mess... I don't use pad cleaners for cleaning pads used with waxes and paint sealants, just compounds and polishes.
After a day of buffing, it's a good idea to clean your pad wash it THAT DAY as the water will get very skunky smelling and the residue removed from the pads will compact inside the bucket and be harder to clean out.
When cleaned on a daily basis it's a spray rinse and you're done, then you can add fresh water and cleaning solution and be ready to go the next day.
