At installation, positive contact and approximately 10 percent compression is recommended to fully marry surfaces to be joined. Surfaces to be adhered should be free of frost or standing water, brushed clean, solvent washed (MEK, Toluene or Naptha) and wiped dry. Good Glazing Practices: The following "Good Glazing Practices" are recommended when using CRL Glazing Tapes. As the size of the lite approaches this maximum a higher performance glazing system, such as CRL Tremco® Pre-Shimmed Butyl Tape should be considered.Īpplicable Standards: AAMA 800-92, 804.3, and 807.3. Not for use with lites of glass over 75" (1.91 m). ![]() Limitations: Not for use in joints subjected to continuous water immersion or temperatures exceeding 158☏ (70☌). It can also be used for lap sealing between panels such as steel, aluminum and porcelain, as well as a variety of other joints in shear between similar and dissimilar materials.īase Polymer: cross-linked butyl rubber (polyisobutylene) Solids Content: 100% by weight Cure Time: fully cured before application Hardness: 65 durometer Shore "00" Temperature Range: Application 20☏ (-7☌) to 120☏ (49°) Service -40☏ (-40☌) to 158☏ (70☌) Weathering: Unaffected by ultra violet through glass. Use Tremco® 440 for non-compression glazing of vision lites and spandrel panels in metal and wood frames in low rise building construction. Highly adhesive, it remains permanently elastic, even at low temperatures, and is adaptable to many different types of glazing systems. Tremco® 440 forms a watertight seal to prevent water infiltration, and has superior weather resistance. The 100 percent solids compound of butyl and polyisobutylene contains no solvents or other volatiles that could escape on exposure, causing shrinkage and sealant failure. ![]() ![]() CRL Tremco® 440 Butyl Architectural Tape is a pre-formed butyl sealant in tape form.
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