What is this on my boat floor

[falcon01]

Guys Hi i am just wondering if you have any idea what this mark is? I never leave anything in the boat do not have carpet it is just your standard run of the mill 3.75 cody it does have light but I unhook the battery after every use. Every bolt has been sikaflexed or duralaced. The only concern I have is I did the transom bolts with sikaflex so the anodes on the motor have no affect on the hull i guess does this matter. Also what do I clear it with

[falcon01]

sorry image [img size=405]http://www.australianfishing.com.au/media/kunena/attachments/legacy/images/IMG_0152.JPG

[Rodman]

Mate it looks like salt residue you should be able to remove it with a normal cleaning solvent. Ensure it is throughly washed of with fresh water

Rodman

[bootyinblue]

My most polite answer would be salt. Warm soapy water and a deck scrubber should do the trick. Rinse clean and leave in breezeway to throughly dry.

[faulked]

has the white gunk marked the floor ie removed some alloy like corosion or is it just on the surface there are 2 forms of corrosion in tinnys electrolitic and galvanic i cant remember the which is which one is where your boat turns itself intop a battery the other is dissimalar metals and can be stopped with disposable annodes

[obone]

Yeh as faulked said, I reckon it's corrosion, not salt. I have a bit on my little barra punt tinnie. Never really worried me.

Joel

[flathead]

i would put me finger on boat tinnier :silly:

[falcon01]

Hi guys I have got most of it off with a high pressure hose there is a few spots on the boat and no It has not eaten any of the alloy