Non Staining Mastic Sealants

Don't settle for oily bleeding and after staining from standard silicone sealanst! Sealants Online stock only the highest quality, non-staining, non-leeching mastic joint sealants that are guaranteed not to bleed into natural stone and other porous substrates or cause unslightly migratory staining that all common acetoxy or high modulus internal silicones and neutral cure, low modulus silicone sealants usually cause! The world-leading natural stone silicone sealant, OTTOSEAL® S70 from German sealants & adhesives specialists Otto Chemie, it comes in over 45 colours including the recent addition of 9 x MATT FINISHES (which is unrivalled in a silicone and has become increasingly more popular with our customers! There's also OTTOSEAL® S130, a specialist, prolonged mould protection, natural stone silicone sealant with OTTO FUNGITECT® Silver Technology for bathrooms and swimming pools etc. The all-rounder CT1 Sealant Adhesive also shows great non-bleeding characteristics when applied correctly (please consult the manufacturers C-Tec for more technical information) Dow Corning Geocel have now added several colours of a non-stain sealant product (Geocel 925) to their line of sealants.