Home > Companies > Newton Waterproofing Systems > Newton 306 SwellMastic Swelling Adhesive Mastic
Newton 306 SwellMastic is a high-quality, firm, fast-curing, swellable, single-component, polymeric adhesive sealant. The special composition of Newton 306 SwellMastic makes the sealant start to swell when in contact with water (to about 150% of original size). The sealant has high elasticity and high adherence and it develops a strong adhesive tensile strength immediately after application. The first swelling is time delayed which allows Newton 306 SwellMastic to be applied to slightly damp surfaces.

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Newton 306 Swellmastic (SX306)
Swelling adhesive mastic.
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Manufacturer details

Newton House,
17-20 Sovereign Way,
Tonbridge,
Kent, TN9 1RH
Tel +44 (0)1732 360095
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