Seal-it® 351 MS SUPER-ALL

Seal-it® 351 MS SUPER-ALL is a high-quality, multi-purpose universal sealant and construction and installation adhesive that is based on MS-Polymer® technology and moisture-cures into a durable rubber that retains its elasticity.


  • Seal, adhere and install anything on practically any surface/material.
  • Versatile sealant for connecting joints between building components in façades, floors, interior and exterior walls, ceilings and roofs.
  • Multifunctional installation and construction adhesive, suitable for most building materials.
  • Fungicidal sealant for units with plumbing fixtures, sanitary spaces and cold storage units.
  • UV-resistant glazing compound for top and bead seals in safety glass.
  • Super strong construction compound for bridge joints between concrete parts, such as galleries and balconies.
  • Seal, adhere and install metal parts in the construction of roofs, façades, bodywork, containers and air ducts.
  • Waterproof adhesion of post-and-lintel slabs and EPDM films in the construction of roofs, façades and ponds.
  • Stainless adhesion and installation of mirrors and façade, decorative and insulation panels.
  • Durable joint sealant around floor drains and other drains in sanitary spaces and other spaces with plumbing fixtures.
  • As an elastic paintable sealant and filler for joints, seams, cracks, holes and fissures.
  • Repair adhesive for renovation and maintenance in the construction, industrial, marine and automotive sectors.


  • Durable, retains elasticity, maximum movement capacity of 25%.
  • Excellent adhesion without primer on practically all surfaces, even moist ones.
  • High mechanical resistance and ultimate strength, fast-curing and fast-strengthening.
  • Universal and user-friendly product to seal, adhere and install anything, both indoors and out.
  • No staining or bleeding on porous materials, such as natural stone, and no edge contamination.
  • Free of isocyanate, solvents and silicone.
  • Very low emission: certified EMICODE EC1 PLUS, BREEAM, EUROFINS LEEDS® and VOC emission class A+
  • Good resistance to discolouration, UV, weather, water, moisture, fungus and ageing.
  • Odourless, bubble-free and non-shrink fast-curing CE-certified MS-Polymer® system.
  • Compatible in direct contact with the silver coating on mirrors and PVB-film on laminated glass.
  • Usable wet-on-wet, repair with the same material.
  • Sandable and grindable once fully cured.
  • Paintable immediately after skin formation.
  • Non-corrosive to metals.
  • Good absorption of mechanical and acoustic vibrations.

Application conditions

  • Application temperature (ambient and surface) between +5°C and +40°C.
  • On clean, uncontaminated, compatible, stable, dust-free and grease-free surfaces.
  • Ensure proper joint dimensions, for proper absorption of any movements.
  • Degrease the surface properly using Seal-it® 510 CLEANER.
  • Use a suitable brush to remove any loose particles from the surface.
  • For adhesive applications, apply material vertically (ventilation) in beads spaces between a minimum of 10 cm and a maximum of 20cm. Do not apply in dabs! It is recommended to use double-sided adhesive Seal-it® 560 PANELTAPE to support adhesion during the curing process and to achieve the correct adhesive thickness.
  • Seal-it® 351 MS SUPER-ALL adheres excellently to many surfaces. We recommend priming highly porous/absorbent/open surfaces with Seal-it® 520 PRIMER first.
  • Use Seal-it® 550 FINISH to apply a smooth and tight finish, before skin formation.

Standard product line


12 x 290ml cartridge (blank)

12 x 600ml foil pack (blank)










SI-XXX-XXXX-XXX = Article number.
Other colours and/or packaging on request.


  • EN 15651-1: F-INT
  • VOC emission class A+

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