Deep Polypak® Rod/Piston U-Seal 4.500" x 5.000" x 0.375" - AU/NBR

Marsoni

M251S

$50.60

Get it in 3 business days with 1 day shipping. Friday, May 29

Deep Polypak® Rod/Piston U-Seal 4.500" x 5.000" x 0.375" - AU/NBRProduct Details : Deep Polypak Rod Piston U Seal 4. 500" x 5. 000" x 0. 375" AU NBR Part No: 25004500 375 4615 Product Category: Symmetrical Seals Product Type: Rod Piston U Seal Profile: Deep Polypak Material(s): Polyurethane Nitrile Material Code: AU NBR Temperature Range: 65F to +200F ( 54C to +93C) Pressure Range: 5000 PSI ( 345 Bar) Surface Speed: < 1. 6 ft s (0. 5 m s) System Of Measurement: Inch Dimensions: 4. 500" x 5. 000" x 0. 375" Nominal

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I have a couple of kayaks made of various resin types, and all were showing severe signs of oxidation on their paint jobs. The newest is probably 20 years old, so you can imagine the oxidation. All I can say is, I was greatly surprised and pleased with the result. Other than the scratches, the oxidation was almost entirely removed! I'm a true believer in this stuff!

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Reviewed in the United States on March 3, 2026