What sealing is suitable for pipe penetrations in the floor slab?

Hello everyone,

we built without a basement on a slab. This slab was sealed with bitumen membranes against rising damp. However, the question now is how to best seal the area around the pipe penetrations for wastewater and supply lines to the bitumen membrane?

After initial research, I would try it with "2K thick coating (solvent-free)." What do you think? Can this also not harm the KG/HT pipes? The product description says "...for pipe penetrations" and nothing else.

Thank you all.

they are hopefully already existing: sealed penetrations (for water, electricity, telecommunications, gas) in the form of a multi-service connection, for drainage sealed penetrations installed in the base slab via HT/KG pipe. What else do you want to seal where and why? Have I not understood the problem?