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Inject-a-deck vs reflooring?

Old 09-09-2020, 01:26 AM
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Default Inject-a-deck vs reflooring?

Hello, relatively new to the world of both boating and forums here. I grew up fishing with my father on or 18.6Ē key west, some of my fondest memories were on that boat. We sold in when we were opening up a restaurant back in 15. Been land locked ever since and I miss those good olí days of carefree fishing with family and friends alike. COVID was kinda getting to me and to be frank all the time inside was driving me nuts. Being 22 years of age and finally having a little Money saved up, I finally took the first step to getting back on the water. I bought my first boat, a 1986 aquasport 222 ccp. Beautiful boat. And with the support of some great friends, we have been crushing small projects on it over the week that Iíve had it.

Thereís just one nagging thought in the back of my mind that has been keeping me up night after night. The floor. Iíd say about 80% of the floor if not 85% of the floor is rock solid. About 10% is moderately soft and the rest is mildly but noticeably soft. Iím not lazy but Iím also not super well off here so Iíd love to fix the problem before things get worse but I donít want a fix thatíll need to be corrected a year down the road. Iíve heard a lot about these two part expos that you fill the deck with, unfortunately thereís not a ton a great information and most of it is very strong feeling in opposing directions. The other option seems expensive and easy to mess up. I donít really know what to do here.

if you managed to make it through tall of that babble, I really appreciate the time and help. Thank you so much, happy boating!
Old 09-09-2020, 02:37 AM
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Depends if you want to fix it or patch it, two very different things.
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Old 09-09-2020, 02:48 AM
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I would look at it like this: if you give it a go and you're happy with the results - great!

If you give it a go and you're not happy with the results, you're no worse off than you are now - for a small patch or patches, I think I'd give it a go. A bit like getting a rust hole in the fender of an old car - a replacement would always be the best long term fix, but a patch is also likely to last years and years.
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Old 09-09-2020, 12:55 PM
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Originally Posted by noelm View Post
Depends if you want to fix it or patch it, two very different things.
awesome! Thanks a lot man, Iíll see how it goes with the drill and fill method.
Old 09-09-2020, 12:56 PM
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Originally Posted by Clinker View Post
I would look at it like this: if you give it a go and you're happy with the results - great!

If you give it a go and you're not happy with the results, you're no worse off than you are now - for a small patch or patches, I think I'd give it a go. A bit like getting a rust hole in the fender of an old car - a replacement would always be the best long term fix, but a patch is also likely to last years and years.

good deal! I guess it couldnít hurt and Iíll be sure to give an honest review of the product
Old 09-09-2020, 01:19 PM
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I agree with Clinker. I have a couple of friends who have had good success with pumping thin epoxy into soft areas. Injectadeck sounds good but kind of pricy.
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Old 09-09-2020, 02:03 PM
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Injectadeck is just 2 part foam in the 8lb density variety. You can use gorilla glue with similar results but it just depends on the situation.

I've done it on a big boat and it held up for over 3 years on a couple soft spots. Basically drilled holes every 4" or so and then used a syringe to inject a hole, cap hole, wait until flows to next hole and then cap that one, etc. It's a temp solution but it does work. You'll hate yourself when you have to do the permanent job tho(having to grind all that shit out).

In the end it's damn near as difficult to patch all the holes, repaint, deal with the sticky material and after I just did small sections at a time, cutting the top skin, replace/fill, replace.. Stronger and honestly less work per sq ft.

Drill a few holes around the perimeter of the 10% area that is soft, mark off what you're going to cut, get a smaller skill saw, set the blade shallow enough to cut the top of the skin but not all the way through, cut your lines and keep it in one piece, 90% chance it'll just lift out(it's going to be mush underneath), choose a coring of the correct thickness, lots of resin on the bottom, lots of resin on top and then lay the piece back in.. You'll have gaps where the saw cut so mix up some cabosil/resin to make thick putty, fill in the gaps, do some sanding to make even and then gelcoat.. That's a long paragraph but trust me it's really easy.

Owning a boat this big that has rotten decks you learn some tricks.
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Cheap EVA foam decking to finish it up and it turned out great.
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Last edited by MrWesson; 09-09-2020 at 02:12 PM.
Old 09-09-2020, 02:28 PM
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i have an aquasport here now for tank and deck, the guy tried filling the deck with that stuff.
20 something holes later he still needed a deck, wasted all that time and money

i guess try a small spot and see but dont count on it fixing your problem
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Old 09-10-2020, 01:16 AM
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Originally Posted by Tiger51 View Post
I agree with Clinker. I have a couple of friends who have had good success with pumping thin epoxy into soft areas. Injectadeck sounds good but kind of pricy.

awesome, sounds like good news. I get such mixed reviews on the stuff
Old 09-10-2020, 01:16 AM
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Originally Posted by Raybo Marine NY View Post
i have an aquasport here now for tank and deck, the guy tried filling the deck with that stuff.
20 something holes later he still needed a deck, wasted all that time and money

i guess try a small spot and see but dont count on it fixing your problem

that sounds like the smartest approach. I appreciate the input man!
Old 09-10-2020, 04:37 AM
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I have a 95 SeaCat hat the front deck went soft. Weighed all the thoughts above and used the inject a deck. More than happy with the results. Went back and marine texted the holes so if you look you can still pick up the drill pattern. Word to the wise. Tape off every inch of the area not just a couple inches each way of the hole. Some holes take one squirt, some two, some 1/2, the overage is coming back to daylight like the blob in a B movie. If it gets on the deck it is like removing 5200, only your skin replacement cycle will get it gone.
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Old 09-10-2020, 11:31 AM
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Without commenting on the deck (sole correctly), I will just suggest making sure that you arenít addressing an issue that is on top of a bunch of wet soaked foam. Have you looked into that and verified it is not an issue? I have seen wet cored soles and wet / soaked foam to go together at times.
Old 09-11-2020, 12:14 AM
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Originally Posted by NedLloyd View Post
Without commenting on the deck (sole correctly), I will just suggest making sure that you arenít addressing an issue that is on top of a bunch of wet soaked foam. Have you looked into that and verified it is not an issue? I have seen wet cored soles and wet / soaked foam to go together at times.
as far as I know, the deck is just wood and fiberglass with no foam! And there was already a pretty large gas tank panel that was repaired. The previous owner dumped a lot of money into the boat and Iíd imagine if stringers were an issue, he wouldíve repaired any deeper issues. But I will look into that!
Old 09-11-2020, 12:15 AM
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Originally Posted by BMosely View Post
I have a 95 SeaCat hat the front deck went soft. Weighed all the thoughts above and used the inject a deck. More than happy with the results. Went back and marine texted the holes so if you look you can still pick up the drill pattern. Word to the wise. Tape off every inch of the area not just a couple inches each way of the hole. Some holes take one squirt, some two, some 1/2, the overage is coming back to daylight like the blob in a B movie. If it gets on the deck it is like removing 5200, only your skin replacement cycle will get it gone.
hmmmm noted. Sounds like a pretty shinning review of the product. How long has it held up??
Old 09-11-2020, 12:20 AM
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Originally Posted by Raybo Marine NY View Post
i have an aquasport here now for tank and deck, the guy tried filling the deck with that stuff.
20 something holes later he still needed a deck, wasted all that time and money

i guess try a small spot and see but dont count on it fixing your problem
im torn between the two man. I hadnít considered leaving the bottom layer and building on top of the bottom layer. Makes a lot of sense, hadnít even thought about that. And the area I have to replace is only a little larger than half of the area that you have with the Eva foam. But I will say, your method makes it look a lot easier than removing the whole panel. Very insightful really appreciate the advice, thanks buddy!
Old 09-11-2020, 04:24 AM
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I think Ned meant the flotation foam in the boat that is under the deck. If water has been leaking into the deck core, it might also be dripping onto/into the foam and over time that foam will absorb water.
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Old 09-11-2020, 08:36 AM
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Originally Posted by Capt. Fred View Post
I think Ned meant the flotation foam in the boat that is under the deck. If water has been leaking into the deck core, it might also be dripping onto/into the foam and over time that foam will absorb water.

yes, Thank you. The boat was built with flotation foam below the sole.

Old 09-11-2020, 09:49 AM
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Originally Posted by Huntersmith View Post
awesome, sounds like good news. I get such mixed reviews on the stuff
You came here to confirm what you want to do and will cherry pick to back that up.

Just do what you're gonna do.

It'll work for a really small area but cutting the top skin off and replacing the core is just as quick and easy but with a lasting repair. The foam in the injectadeck is strong/dense but it will compress over time.
Old 09-11-2020, 10:09 AM
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Not a replacement for stopping water intrusion and drying core. Rot is cancer....it will continue to spread until you fix it. Injecting stuff can work to reinforce..... But it's not a long-term fix unless you stop the rot also, and dry everything. Hard to do without cutting skins off.


Old 09-11-2020, 11:42 AM
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Originally Posted by MrWesson View Post
Injectadeck is just 2 part foam in the 8lb density variety. You can use gorilla glue with similar results but it just depends on the situation.

I've done it on a big boat and it held up for over 3 years on a couple soft spots. Basically drilled holes every 4" or so and then used a syringe to inject a hole, cap hole, wait until flows to next hole and then cap that one, etc. It's a temp solution but it does work. You'll hate yourself when you have to do the permanent job tho(having to grind all that shit out).

In the end it's damn near as difficult to patch all the holes, repaint, deal with the sticky material and after I just did small sections at a time, cutting the top skin, replace/fill, replace.. Stronger and honestly less work per sq ft.

Drill a few holes around the perimeter of the 10% area that is soft, mark off what you're going to cut, get a smaller skill saw, set the blade shallow enough to cut the top of the skin but not all the way through, cut your lines and keep it in one piece, 90% chance it'll just lift out(it's going to be mush underneath), choose a coring of the correct thickness, lots of resin on the bottom, lots of resin on top and then lay the piece back in.. You'll have gaps where the saw cut so mix up some cabosil/resin to make thick putty, fill in the gaps, do some sanding to make even and then gelcoat.. That's a long paragraph but trust me it's really easy.

Owning a boat this big that has rotten decks you learn some tricks.
Attachment 1118507
Attachment 1118508

Cheap EVA foam decking to finish it up and it turned out great.
Attachment 1118509
Really good post - I strongly agree. Not to derail the thread but I want to make the same repair you did. Can’t find a shop to do it because it’s too time consuming and maybe difficult to finish well.

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