PERMA PASTE

Brand Owner Address Description
PERMAPASTE OBEX, CO. 3064 SILVER SAGE DRIVE, SUITE 150 LAS VEGAS NV 89701 PERMA PASTE;Coatings in the nature of industrial sealants for waterproofing and surface hardening; Concrete moisture barrier coating; Concrete sealers in the form of a coating; Epoxy coating for use on concrete industrial floors; Penetrating sealer coatings for use on concrete; Polymer coatings for concrete;Concrete additives; Concrete admixtures; Polymers and polymeric additives for enhancing the performance of lubricants; Waterproofing chemical compositions; Waterproofing chemical compositions for articles of masonry, wood and other building and/or construction surfaces;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A method of etching a semiconductor substrate is described, the method comprising the steps of applying a paste containing an etchant to the substrate, and carrying out a thermal processing step to etch a part or a layer of the substrate where the paste has been applied. The etchant paste is preferably a caustic etching paste. The etchant paste may be applied selectively to a major surface of the substrate to form a pattern of applied paste. For example, the paste may be applied by a printing method, such as screen-printing. The method may be used to produce solar cells.