Waterproofing or lining of pipes, namely, applying a fluid impervious barrier in the nature of a mixture of isocyanate, polyurea or polyurethane and epoxy resin or amine resin, by spraying the mixture to line the interior of pipe for others

'amin':27 'appli':7 'barrier':11 'epoxi':24 'fluid':9 'impervi':10 'interior':36 'isocyan':19 'line':3,34 'mixtur':17,32 'name':6 'natur':14 'other':40 'pipe':5,38 'polyurea':20 'polyurethan':22 'resin':25,28 'spray':30 'waterproof':1

Sealant liners in spray-on form made of nonmetal material for use in pipe interiors

'form':7 'interior':16 'liner':2 'made':8 'materi':11 'nonmet':10 'pipe':15 'sealant':1 'spray':5 'spray-on':4 'use':13

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