KALAR® 5246

KALAR® 5246 has controlled cross-linking which makes it an ideal material for soft sealants with a greater degree of creep and slump resistance. Other key performance benefits include:

• Elimination of butyl rubber pre-mastication
• Pellets may be metered to facilitate mixing
• Requires no vulcanization
• Readily acceptable in a wide range of solvents
• Extends with high levels of fillers and plasticizers
• Compatible with a wide choice of compounding ingredients
• Creep and cold-flow resistance
• Compounding economy

KALAR® 5246 contains no monomeric materials that often impart an objectionable odor and potential instability under elevated temperature. Although widely used in the sealant industry, KALAR® 5246 is also ideal for a variety of applications including the following:

• Industrial sealant tape
• Architectural glazing tape
• Automotive windshield tape
• Automotive sealant and sound deadening compound
• Tire sealant
• High-strength thermoplastic mastic
• Weather-proofing sealant tape
• Hot-melt glazing compounds
• Solvent release adhesives
• Caulks
• Construction adhesives
• Processing aid for butyl rubber
• Green strength enhancer in butyl and EPDM compounds

KALAR® 5246 is packaged in 50 lb. fiber boxes.

The suggested handling procedure varies with the desired product. Coatings and adhesives are produced by adding the pellets to a solvent, mixing with a high-speed homogenizer-dispenser, and adding the rest of the ingredients. Caulks and sealants may be mixed in Sigma blade mixers. Stiff compounds may be mixed in a Banbury or on a two-roll rubber mill.

KALAR® 5246 will maintain chemical and physical properties for a minimum of 1 year from date of manufacture. KALAR® 5246 product may agglomerate or hard-pack within the boxes, however this will have no effect on chemical or physical properties and the product may be used. Store in a cool, dry environment.