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 has a broad bonding spectrum, but highly porous surfaces should be pre-treated with Seal-it® 520 PRIMER and non-porous surfaces with minimal bonding should be treated with Seal-it® 525 Clean & Bond.
  • 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+

Technical support department

Connect Products has a state-of-the-art R&D laboratory, where experienced specialists continuously research and develop sealants, adhesives and PU foams. Customers and clients can have products researched, tested and developed by this department. You can also contact us for technical advice, tips, project support, warranty certificates, requests and other technical questions. We will be happy to assist you with high-quality technology.

Call us on +31 (0)183 731 400 or send us an e-mail.

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