Coating processes – Restoring or repairing
Patent
1983-12-16
1985-12-17
Lawrence, Evan K.
Coating processes
Restoring or repairing
138 97, 427422, 427426, B32B 3500, B05D 102
Patent
active
045592390
ABSTRACT:
A method of repairing cementitious substrates with polyurethane in which volatile-free polyurethane precursor reactants are sprayed and polymerized on the surfaces of cementitious articles, such as concrete water conduits.
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