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Boat Maintenance | Indiana Boating License Study Guide for Online ...


Check for oxidation, a common problem on aluminum hulls, that appears as white powder spots. Use fine sandpaper on oxidized areas until spots are replaced ...

Aluminum boat, electrolysis/corrosion - Finishing


I have noticed "pitting" on the transom with a white, powdery "puss looking" secretion ... One or two spots did progress to the point of some pitting. .... We bought a pontoon boat with aluminum hulls that had suffered serious corrosion, probably from electrolysis. ... Firstly, a few of you have indicated vinegar to ...

Inspecting Older Boats Runabouts And Center Cockpits - Seaworthy ...


Gelcoat cracking in the hull can indicate minor collisions or trailering mishaps, though on lighter-built boats, ... Breaker panels are another potential trouble spot. ... Look for white powder on the aluminum, a sure sign of corrosion. ... Before buying a boat, do a little homework and search the database by make and model: my.

Types of Marine Corrosion - BoatTECH - BoatUS


If you do not control galvanic corrosion, over time the aluminum will corrode away . ... water line — a white powdery substance forms on the exposed metal areas. ... formed—the large steel hull and your small aluminum drive connected by the ...

About Corrosion - - Nautech Marine


It is a fact that aluminum boat corrosion is becoming more of a problem as time ... of a white powder between the hull and the fittings on a non-painted hull, it is ... to do after each fishing trip is to flush out the hull of your boat with fresh water.

White Powder Aluminum Oxide on Engine Components - CCDV Message Board


White Powder Aluminum Oxide on Engine Components Car Care & Detailing. ... I do have a small wire brush and some old toothbrushes to see ... FYI the the small throw away foam paint brushes work well in some spots.

Tech Q&A from Aluminum Now - The Aluminum Association


Society for Metals, 1984 indicate that after 10 years of aging at room temperature, 6061-T4 material has not yet ... In order to minimize springback, should we bend our 5052-H32 sheet along the ... barrier coats and apply hull finish paint. ... white/ gray spots, also called hot spots, on extrusions that can be seen on both.

How to Touch Up Painted Aluminum | Cruising World


Mar 20, 2013 ... How to Touch Up Painted Aluminum: Use these tips and tricks to ensure a ... identifiable by a white powder, and wet, which produces a white goo. ... best approach is to prevent damage to the paint; if damage does occur, ...

Owners Manual - Savage Boats


Should you encounter any difficulties contact your local Savage dealer immediately. ..... may indicate a faulty impeller or a block in the tell tail or water intake. .... revs, locate a spot between half and two thirds throttle where the hull is sitting up on ..... It is normal as the zinc surface ages that a white powder (calcium carb...

zinc Facts, information, pictures | Encyclopedia.com articles about zinc


Some experiments indicate that zinc actually decreases intellectual function of ... People over age 50 don't absorb zinc as well, nor do they generally have ..... zinc borate (ZnB4O7): fireproofing of textiles; prevents the growth of fungus and mildew .... The remaining aluminum hull and engine are not corroded as a result.

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What aluminum hull has white powder spots What should be done to ...


Sand the spots down to shiny metal using fine sandpaper. ... What do white powder spots on aluminum hull indicate? oxidation of the aluminum surface. 4 people found this useful. Edit. Share to: ...

Kentucky Boating Safety Manual, A Course on Responsible Boating ...


activities, boaters should become familiar with laws that govern them and learn good safety .... white light port: Left side of a vessel starboard: Right side of a vessel hull: Body of a vessel keel draft .... This plate indicates the maximum weight capacity and/or the maximum number of people ..... as white powder spots . Use fine ...

Inspecting Older Sailboats - Seaworthy Magazine - BoatUS


Chainplates tie the rig into the structure of the hull. ... Look for pooling water or white powder and cracks at the base of the mast. ... often signals a soft spot while a solid "thunk" usually means a healthy core. ... A new boat with a "pox" of blisters , however, should be avoided as this could indicate problems w...