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Old 27-07-2010, 15:18   #1
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5200

I'm going to use some 5200 to create a sealing bead around my dorade boxes. Please dont try to talk me out of it

How long should I wait before pulling the tape? I'm concerned that the 5200 will run... but dont want it to make a ragged line if I wait to long........ what to do?

Thanks for any help
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Old 27-07-2010, 18:12   #2
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Once 5200 is applied on a more or less horizontal surface it takes about a day before you can cut it with a box cutter or an exacto blade or very sharp knife. I've never seen it run except on vertical surfaces. It will still be flexible for awhile. If the bead is very tiny then pull the tape right away and when you feel its right. If you just pull the tape without cutting the bead after it sets a bit you can pull the stuff out of the area you want to adhere.
I won't try to talk you out of it but I suppose you'll never want to remove those dorades in one piece?

If you have something around to practice with then try a small experiment with the bead and tape. Once you open a tube it is hard to seal it up enough to save it but if you put something in the end, like a bolt, and then seal the whol thing in a plastic bag sometimes you can use the same tube several times before it hardens up. It is tenacious if you've prepared the glass and wood properly.

regards,
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Old 28-07-2010, 08:18   #3
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Thanks - the dorades are such that removing them would destroy them with or without the 5200.

My method of preparation will be to wire wheel the surface and then wipe with acetone.

Thanks for the help John
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Old 28-07-2010, 08:20   #4
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Question:

Does 5200 set up hard and solid, like epoxy, or still pliable like a caulk or RTV? I have some white stuff used at the seams in my boat, and it's not hard like epoxy, by more like a hard rubber, very tough to pull or cut, and slightly translucent white. Just curious what it is, vs what 5200 is.
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Old 28-07-2010, 08:42   #5
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What do you have against 4200?
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Old 28-07-2010, 08:43   #6
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Quote:
Originally Posted by bassman1956 View Post
Question:

Does 5200 set up hard and solid, like epoxy, or still pliable like a caulk or RTV? I have some white stuff used at the seams in my boat, and it's not hard like epoxy, by more like a hard rubber, very tough to pull or cut, and slightly translucent white. Just curious what it is, vs what 5200 is.
Opaque hard rubber-like is 5200. the "slightly translucent" makes me think silicone
(N.B. Silicone is NOT what you want to use for planking)
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Old 28-07-2010, 09:26   #7
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Quote:
Originally Posted by bassman1956 View Post
Question:
Does 5200 set up hard and solid, like epoxy, or still pliable like a caulk ...
3M 5200" is a non-shrinking polyurethane adhesive sealant that stays flexible and waterproof.
http://multimedia.3m.com/mws/mediawe...s6EVs6E666666
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Old 28-07-2010, 09:45   #8
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Quote:
Originally Posted by GWB View Post
I'm going to use some 5200 to create a sealing bead around my dorade boxes. Please dont try to talk me out of it

How long should I wait before pulling the tape? I'm concerned that the 5200 will run... but dont want it to make a ragged line if I wait to long........ what to do?

Thanks for any help
I have had good results pulling the tape as soon as I think it looks right. Typically, I use a gloved finger to shape the cove and sometimes, to make certain it is pressed in. Done this way, the layer should be very thin over the tape.

I see no problem in using 5200... for things you would use a flexible epoxy for.
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