Identify the adjoining finishes
Glass, coated metal, plastic and porous stone tolerate different tools and cleaners. Protect nearby finishes and follow the substrate supplier’s cleaning limits. Do not assume a solvent is safe because it removes silicone.
Remove bulk material and residues
Use suitable mechanical methods for accessible bulk material. If a chemical cleaner is proposed, review its safety instructions and compatibility, then test an inconspicuous area. Avoid damaging the joint faces needed for the next sealant.
Prepare for the replacement system
The replacement grade needs clean, sound, suitably prepared surfaces. Review primer, backing and compatibility requirements rather than applying a new bead over uncontrolled residues. Include the old joint and substrate details in a replacement-product enquiry.