Page 530 - Handbook of Adhesives and Sealants
P. 530

in  used  are
               High degree of tenacity. Relatively costly. Diffi- cult to measure properties of strength. Takes many months for sealant to skin over Poor cohesive strength. At times req




             Remarks                they  when


                       Similar to butyls



                                    might objectionable,  be
           Application  methods  GM, GP, K  GM, GP, K  GM, GP, K  GM, GP, K  materials


                                    some
          Toxicity  during  application  None  None, strong  odor  None  None, strong  odor APPLICATION METHODS CODE: GM—extruded by manual calking gun. GP—extruded by pressure gun. K—




             Pot life  Indefinite  Indefinite  Indefinite  Indefinite  however, confined quarters. In addition, some individuals may experience allergic reactions to contact with certain fo
                                    harmful;  not  are




        Non-hardening Sealants 1  Sealant form  One-part mastic, putty  or paste  One-part mastic, putty  or paste  One-part mastic, putty  or paste  One-part mastic or  paste  sealant







        TABLE 12.3  Sealant base  Butyl ...........  Acrylic..........  Polybutene ......  Asphalt and bi-  tuminous  the Generally  permit brush application.

                                          457
   525   526   527   528   529   530   531   532   533   534   535