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JOINT SEALANTS

Joint sealants are used to seal joints and gaps between two or more substrates, and are a critical component for modern building design and construction. The main purpose of sealants is to prevent air, water, and other environmental elements from entering or exiting a structure while permitting limited movement of the substrates.

Sealants are often the least thought about and contribute a low percentage to a project's overall cost; however, they can become a serious, or for hidden or concealed joints, an impossible problem to correct. It is therefore crucial to not only properly design the joint, but to use a sealant that will perform in the most optimum way for the longest duration.

Proper sealant selection also entails avoiding incompatibility between the sealant and the substrate. Improperly chosen sealants can cause staining or etching of the substrate and loss of sealant adhesion.

Alchimica range of joint sealants is based on novel polyurethane-hybrid technology and cover applications such as:

  • Civil engineering construction joints
  • Facade joints
  • Window-door insulation
  • Water tanks-sewage treatment plants
  • Bridge deck
  • D.I.Y.

HYPERSEAL® -25LM-S

Hyperseal 25LM-S a novel low modulus expansion joint sealant, especially formulated to contain both PU and silylated-PU technology, thus giving rise to a sealant which includes the best of both technologies. It has been modified in order to give enhanced thixotropic properties.

It cures by reaction with atmospheric humidity to produce a joint sealant with a 50% joint movement accommodation factor and excellent adhesion on substrates traditionally problematic for PU sealants, e.g. glass, aluminum, steel, polycarbonate, etc.

HYPERSEAL® -50FC-S

HYPERSEAL® -50FC-S is a fast curing joint sealant, general purpose adhesive that has been specifically formulated to contain both PU and silylated PU technology, thus giving rise to a sealant, which includes the best properties of both technologies. The material has been modified in order to give enhanced thixotropic properties

HYPERSEAL® -50V-FC

HYPERSEAL® -50V-FC is a fast curing direct glazing adhesive that has been specifically formulated to contain both PU and silylated PU technology, thus giving rise to a sealant, which includes the best properties of both technologies. The material has been modified in order to give enhanced thixotropic properties.

HYPERSEAL® -50V-FC cures rapidly through reaction with atmospheric humidity to produce a sealant with excellent early grab adhesion even on substrates traditionally problematic for PU sealants, e.g. aluminum, steel, polycarbonate etc.

HYPERSEAL® - BUILDING

HYPERSEAL - BUILDING® is one component polyurethane sealant. The product complies with: ISO 11600 and ASTM C920.

Recommended for:

  • General Construction joints
  • Sealing of roof joints
  • Door frames

HYPERSEAL® -2K-F

HYPERSEAL® -2K-F is a two-component, horizontal grade polyurethane sealant ideal for large construction joints. Upon curing it produces a high performance sealant that also provides significant waterproofing, with excellent resistance to various climatic and temperature conditions. Furthermore, the sealant has very good resistance to chemicals and other severe exposures.

Used for sealing of:

  • large expansion construction joints,
  • joints in water tanks,
  • joints in irrigation channels,
  • joints in airport runways