Kalene 800 Butyl Rubber Elementis Rubber - Elastomer >> Butyl rubber, IIR SEALANT ADHESIVE >> Hot-melt ADHESIVE >> Hot-melt >> Pressure sensitive (HMPSA) ADHESIVE >> Solvent based PRODUCT DESCRIPTION KALENE 800 is a low molecular weight liquid polymer derived by the polymerization of butyl rubber. It vulcanizes at either ambient or elevated temperature with the standard curatives for butyl rubber. KALENE 800 is light gray and contains no solvents or additives. KALENE 800 has the lower viscosity of the two KALENE grades available and is the preferred liquid butyl rubber for coatings applications. KALENE 800 provides gas impermeability, chemical resistance, moisture resistance, good electrical properties and excellent sound dampening qualities. APPLICATION KALENE 800 offers the performance benefits of butyl rubber and the processing convenience of a liquid. It makes convenient bases for sealants, coatings and adhesives. These coatings have higher solids than those based on butyl rubber because the KALENE products are liquids. KALENE’s butyl properties impart chemical resistance to a wide variety of sealants and adhesives. It is ideal for applications requiring chemical and moisture resistance. KALENE products also provide tack to pressure sensitive adhesives and improve the adhesion of butyl-based adhesives and sealants. Since they cure by the same mechanism as butyl rubber, they become part of the polymer matrix. Typical applications include the following: A base polymer for chemical and moisture resistant tank linings and coatings. A base polymer for underwater marine coatings. A base polymer for water resistant roof coatings or other construction sealants. A non-fugitive reactive plasticizer and processing aid for high molecular weight butyl polymers. Polymer base for molding and tooling systems. Polymer base for electrical encapsulants. Production of pressure sensitive adhesives. Elementis Specialties offers a Compounding Guide with starting point formulas for these and other applications. STORAGE AND HANDLING KALENE 800 is packaged in 100 lb. release-coated fiber drums. Store in a dry environment to prevent damage to the packaging. The liquid rubber products are stable over a wide temperature range. They are not damaged by freezing temperatures or occasional short-term exposure to temperatures of 66°C (150°F). The shelf life is a minimum of two years if stored properly in an unopened container. The KALENE products are high viscosity polymers. Heating the drum lowers the viscosity for easier handling. Vent the drums before heating to avoid pressure build up. KALENE liquid polymers can be compounded with virtually any type of rubber processing equipment. Processing requirements vary with the desired finished properties and with the other formulation ingredients. Refer to the Elementis formulary for processing guidelines. Elementis Performance Polymer is affiliated with a custom blender who can provide custom solutions of KALENE in standard or custom solvents, as we do not offer KALENE products in solvents. Low molecular weight liquid rubber for adhesives and sealants. Vulcanizes at either ambient or elevated temperature with the standard curatives for butyl rubber. Contains no solvents or additives. Provides gas impermeability, chemical and moisture resistance, good electrical properties and good sound dampening qualities.