Centek Marine uses the fire-retardant Vernatube® to fabricate many of the basic components found in wet marine exhaust systems. Vernatube® exceeds values for the class of materials designated as ‘self-extinguishing’ per ASTM-D-635, UL94V-0, and the US Navy/USCG MIL-R-7575. The smooth, resin-rich I.D. assures minimal restriction to exhaust gases and cooling water flowing through the tubing. Precise control of the outside diameter ensures ease of connecting mating ports with marine exhaust hoses. All tubing products may be factory machined to fit exact hull dimensions.
Vernatube® is a resin-impregnated glass filament wound tubing made exclusively with a fire-retardant resin formulated for high temperature applications. The smooth, resin-rich I.D. assures minimal restriction to exhaust gases and cooling water flowing through the tubing. Vernatube® exceeds values for the class of materials designated as ‘self-extinguishing’ per ASTM-D-635, UL94V-O, and the US Navy/USCG MIL-R-21607 and MIL-R-7575.
Centek Marine’s Thruster Tunnels achieve superior axial and longitudinal strength through the use of the continuous interweaving helical winding process. The 56° weaving pattern ensures fully interlocked composite fibers, which provides greater durability and longevity than achievable from traditional construction technologies such as pultrusion, hand layup, or centrifugal casting.
Centek Marine shaft logs use the same basic filament winding process for Vernatube exhaust tubing. By winding additional layers of resin-impregnated, continuous fiberglass strands in a predetermined pattern, wall thickness and strength are dramatically increased. This results in strength to weight ratios greater than conventional metal structures. Standard procedures for joining components of an FRP structure can be used for attaching the tubes to, or within, other FRP structures. Held to extremely close tolerance due to mandrel winding. Shaft Logs have the Lloyd’s Register Type Approval.
