Some states have banned the sale of TSP because they fear that phosphate from its rinse water will cause environmental problems in waterways. Amazon carries TSP and will ship it to you if your state allows it. Don’t bother with the phosphate-free version. If you choose OdoBan, use the original OdoBan Concentrate. It’s hospital-grade and will kill bacteria from pet urine.

Would Odorban Rinsfree be ok to use for cleaning the sealed concrete first? Or is there another cleaner you recommend? TSP seems hard to find. Thank you for your help.

Hi Jason. I would clean the sealed surface first and then apply Rocco & Roxie. Make sure you give it time to work. Shellac or other coatings will not adhere to sealed concrete and will peel. The surface would need to be prepped by grinding to remove the sealant.

Hi Mike. PS103 is a ready-to-apply lithium silicate densifier and not a concentrate. The problem with diluting is that it changes the formulation and reduces the solids content. It’s best to apply a light coat of PS103 to the machine-troweled floor rather than dilute it. In other words, don’t apply it to full saturation, as is the norm. Wait approximately 5 days (longer is OK) before you apply the PS100.

A full application of PS103 applied to the broom finish is fine. I would recommend waiting the same amount of time before applying the PS110. Siloxane is an excellent outdoor concrete sealer, but broom finished concrete absorbs quite a bit. Waiting after applying PS103 will reduce that absorption rate and let more PS110 stay near the surface.