Canon Housing Leaks - Easy DIY Fix

[ScubaMarc]

Just did your trick, does the slight haze/grit left over from the sand paper matter? Do you have the same?

 

[Nemrod]

Just did your trick, does the slight haze/grit left over from the sand paper matter? Do you have the same?

It needs to be quite smooth. I used 1,000 and 1,200 grit Micro Mesh and then followed with Plexus polish. The "sanding" was done with warm water and Dawn soap as a lubricant--wet sand or better put, wet polished.

Define "grit".

The plastic/acrylic may have a slight haze when finished. Any scratch marks (micro) should run parallel to the seal--not across it.

That is what I did, YRMV.

N

 

[maged_mmh]

thanks for the info, but do you sand the entire circumference of the housing edge or just "lateral" along the lines?

 

[Gujustud]

This post just 'sealed' the deal for me in picking the housing for my Canon SD780 IS. I'll be going for the Ikelite over the Canon.

 

[Nemrod]

thanks for the info, but do you sand the entire circumference of the housing edge or just "lateral" along the lines?

No, "sanding" is a bit more of an aggressive verb than what is actually required. Some, if not all Canon housings, have a very faint mold line(s). All you do to this is gently polish this area to reduce or eliminate as much as possible the mold line.

My DC-35 had one mold line that wanted to seep. I gently polished the area shortly after I got the housing, way long before this thread came to be, to fair or smooth the area.

You do not use sand paper, you would use either a liquid plastic polish compound or a wet dry paper of more than 600 grit or something like the Micro Mesh papers that begin at around 600 grit and go on up to around 6,000 grit.

The idea is to gently break over the mold line, not to aggressively remove material.

No, do not "sand" the entire circumference, that is way to much and not required, a little bit will do it. You would only do this if the mold line was pronounced or the housing showed a tendency to seep or leak.

N

 

[ScubaMarc]

Just did your trick, does the slight haze/grit left over from the sand paper matter? Do you have the same?

I just ruined my case, I tried to buff the grit lines and was a little to agessive. I was using a polishing cloth, that was not removeing it, then used my dremal on very slow and put a divit in the grove. $175 down the drain.

 

[Nemrod]

Nobody said anything about a Dremal tool, that would be way to aggressive on acrylic plastic. Yep, sorry you did that. That is terrible. N

 

[ScubaMarc]

Nobody said anything about a Dremal tool, that would be way to aggressive on acrylic plastic. Yep, sorry you did that. That is terrible. N

all my fault, i did not think the buffing would make the divit. I tested it on an older case which showed no damage. Buffing with cloth did not remove the scraches

 

[kwhkg]

i have a G9 with canon housing. I have found that if you are taking lots of video at 70feet plus and then get into warmner water the heat generated by the battery may cause a slight fog. i have put 4 small silicon packs (from vitamin bottles) in the space between the inside of the housing and the rubber shield thats around the lens compartment. Have never had any fog after doing that

 

[Wisnu]

I am one of the people who came and get help from Jeff.
His leak detector had saved our G9 twice. I've replaced new o-ring; just back from a week trip from Lembeh, no problem at all; and if any, the detector will tell me before getting worst.
Thanks Jeff.