NAVAL MESSAGE TO: ALL SURFACE SHIPS

SUBJECT:  CONDENSATION CONTROL COATINGS

 1.  THIS MESSAGE AUTHORIZES THE USE OF TEMP-COAT 101(TEMP-COAT PRODUCTS LLC) AS AN "ALTERNATIVE ANTISWEAT COMPOUND" AS PER NSTM, VOLUME 2, SECTION 631-7.8.3-7.8.5.  NAVSEA WILL UPDATE THE NSTM TO REFLECT THIS APPROVAL.  ANTISWEAT COATINGS ARE AUTHORIZED AS A REPLACEMENT FOR VERMICULITE AND ARE NOT AUTHORIZED AS REPLACEMENTS FOR CONVENTIONAL FIBERGLASS OR FOAM INSULATION ON PIPES, BULKHEADS, OR OVERHEADS.  THIS AUTHORIZATION DOES NOT APPLY TO SUBMARINES OR TO PROPULSION-PLANT SPACES OF NUCLEAR-POWERED AIRCRAFT CARRRIERS.

2.  TEST DATA GENERATED ON THE USS CAPE ST. GEORGE (CG-71) INDICATED THE ALREADY APPROVED, HEMPEL ANTICONDENS PERFORMED EFFECTIVELY IN SPACES SUBJECT TO CYCLIC OR INFREQUENT CONDENSATION.  THE TEMP-COAT 101 PERFORMED EFFECTIVELY IN SPACES SUBJECT TO FREQUENT OR CONTINUOUS CONDENSATION.  THE SPACES SUBJECT TO CONTINUOUS CONDENSATION ON CG-71 WERE PASSAGEWAYS FREQUENTLY OPEN TO THE OUTSIDE ENVIRONMENT THAT WERE ADJACENT TO AIR-CONDITIONED RADAR ROOMS.  WALL TEMPERATURES THAT EXHIBITED NEARLY CONTINUOUS CONDENSATION VARIED BETWEEN 55F AND 65F.  QUESTIONS REGARDING PRODUCT APPLICABILITY SHOULD BE DIRECTED TO NAVSEA 05M1 [email protected] OR (202) 761-3671.