Kalar® 5263

Supplier Partner
HB Fuller
Product Type
Pre-Crosslinked Butyl Rubber
Product Subtype
Cross-linked Butyl
Contains Filler (Y/N)
MMooney Viscosity @ 250 °F
KALAR® 5263 is a partially cross-linked butyl rubber compound pelletized for easy handling. KALAR® products feature all the performance attributes expected of butyl rubber.KALAR® 5263 is amber in color and is a more tightly cross-linked butyl rubber than KALAR® 5215. It is designed as the starting point product for butyl sealants that require higher modulus and/or superior durability at elevated temperatures