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post #14 of Old 10-24-2017
eherlihy
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Re: Large Blister on Oday 31 Rudder

Perhaps you could elaborate on the simple chemistry involved... My knowledge is limited to what I have researched at the Foss Foam website, and my experience.

Quoting from the Foss Foam website; Rudder Care | NewRudders.com

Quote:
Tough fiberglass and urethane plastic used in the construction is nearly indestructible. The urethane core is composed of a strong closed cell urethane. Water, gasoline/diesel, solvents or marine borers will not damage your rudder blade, even if the fiberglass coating has been damaged.
Further; Ethylene Glycol - Boiling, Water, Car, and Carbon - JRank Articles
Quote:
In industries, ethylene glycol is used as a solvent (a substance that dissolves other chemicals) and as starting material for the production of Dacron and some types of polyurethane foam.


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USCG Licensed OUPV Captain, ASA 101/103/104/105/106/114/118 Instructor - Also certified in Marine Electrical Systems


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