About UniBond. UniBond Re-New – Go from UGH to AHHH in minutes. No need to remove the old sealant; apply it on top, and you’re done! Smooth application – With an auto-smooth nozzle, this bath, sink and kitchen sealant can be applied very easily and will renew moulding, yellowing or cracking sealant; You can shower after 6 hours.
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