![]() Testing Summary: To date, the testing done by IMS, LLC indicates that the two fuel tank samples have undergone some aggressive degradation (40% of their strength). Test of sections of fiberglass fuel tanks from a 19 Bertram ![]() It can be said that this spectrum is consistent with the presence of polyester, whoever this cannot be unequivocally proven from this spectrum alone.” Test of fuel from an affected boatĮPA 8260 fuel analysis of a sample of fuel taken from a 1968 Bertram 31 located on Long Island Sound indicated 736,426 µg/L of styrene, a component of polyester resin. Finally, the large broad peak seen from 1000-1200 cm-1 is due at least in part from Carbon-Oxygen single bond absorbers. The small sharp peaks at 14 cm-1 are indicative of Hydrocarbons. As indicated on the spectrum, the peaks at 2800-3000 cm-1 are due to Carbon-Hydrogen absorptions the strong absorption at 1730 cm-1 can be from Esters or Ketones. The sample was then analyzed by Fourier Transform Infrared Spectroscopy (FTIR), which produced an infrared spectrum. “A portion of the black material was scraped from the intake valve, pressed flat, and transferred to a potassium bromide crystal plate. Tests of the black material from an intake valve We’ve highlighted the important aspects in each case. ![]() Here are the results of what we have learned so far. Since then, BoatUS has sponsored several tests to find out exactly what the problem is. The tanks, it seemed, were being slowly dissolved by ethanol black stuff was building up on valves and intakes, destroying engines and some fuel tanks were becoming soft and even weeping fuel. Soon after the Long Island Sound area of New York switched to gas mixed with ethanol, BoatUS began receiving calls from boaters who owned older gas-powered boats with fiberglass fuel tanks. ![]()
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