UniBond Re-New, White Silicone Sealant for Kitchen & Bath, One-Step Bathroom Sealant Renewal, Waterproof Bath Sealant with Triple Mould Resistance, 1 x 80ml Unibond RE-NEW can help you quickly rejuvenate dirty, cracked or mouldy sealant. Simply apply the sanitary silicone on top of existing sealant, no need to remove the old sanitary sealant. An integrated smoothing tool ensures an even finish. Thanks to the triple protection mould resistance the joint sealant repels, kills and prevents mould over the long term. One tube of this mould-resistant sealant typically covers one standard bathroom suite (1 bath, 1 shower and 1 sink) .