My floor needs repair

[castman27]

Hi

I have done a booboo could be major or not, her it goes , while i was cutting out the platform with my grinder cutting blade i went through to deep and hit the floor of the boat, i think it is call Hull not sure , i did it on both side of the boat one is about 12 inch long and the other one is doing a shape of a L it went right through the hull how can i fix that i want to do that before i put the stringers in , what is the material to fix it like inside and outside underneath the boat, i hope that ido not have to send the boat to the trash can. Any kind of help would be appreciated i wich i can provide picks of it but got to get a camera for the pics.

 

[Cadwelder]

Re: My floor needs repair

Nope you don't need to trash can your boat, it can be fixed. You can fix it with the same materials you're going to use for installing the stringers. Polyester resin, CSM and cloth (1708 is popular here). The bulk of the repair will be on the inside but some outside will be necessary too.

Pictures would really be a great help here.

 

[castman27]

Re: My floor needs repair

Ok i will try to get some pics and also is there a number for the CSM ??

 

[Cadwelder]

Re: My floor needs repair

Not really a number, but a weight. CSM stand for Chopped Strand Matt. it comes it .75 oz, 1.5 oz and 2 oz, commonly.

 

[castman27]

Re: My floor needs repair

Ok so i guess that i will get the .75 oz ????

 

[Woodonglass]

Re: My floor needs repair

I'd recommend the 1.5 oz mat.

 

[Yacht Dr.]

Re: My floor needs repair

I cant find .75 or 2 oz mat around here..so 1.5 oz is Very common..

Got some pics of the Cuts that are in question would be helpful .

YD.

 

[castman27]

Re: My floor needs repair

Ok i will get picks of it tonight around 9pm eastern time.

 

[Cadwelder]

Re: My floor needs repair

I cant find .75 or 2 oz mat around here..so 1.5 oz is Very common..

Got some pics of the Cuts that are in question would be helpful .

YD.

Really? Guess just the difference in the areas. the .75 and 1.5 are very common here. Now the 2 oz has to be ordered but still available.

 

[castman27]

Re: My floor needs repair ( Pictures of Cut )

Re: My floor needs repair ( Pictures of Cut )

OK here are the pics of the boo-boo i did. you will see in the pic #2 is the cut i did right through you cannot see the cut in pic #1, but where i did the cut in the area of the boat on the driver side . and in pic #3 well that is the other Boo-Boo i did. is it repairable ??? and if yes what is the step i will take cause i dont want to sink and also after i am done inside do i have to do anything outside??

Thanks Gang

 

[Yacht Dr.]

Re: My floor needs repair ( Pictures of Cut )

Re: My floor needs repair ( Pictures of Cut )

I think I just spent more time looking for the same repair that was done not too long ago than to just answer in the first place LOL ..

It does not look all that bad from your pics ( would like some outside shots too though ).

1. Grind/scuff the glass with 24 or 36 grit on the inside for glass.
2. Die Grind the cut to bevel that hard edge away.
3. Skim fill the cut with Cabosil/fiberglass ( mohair ).
4. Apply 1 layer of 1.5 oz mat followed by 3 layers of 1708 .. and top it off with 1.5 oz mat.

Done with the inside ..

Outside ..

1. Grind/bevel cut area about 2-3" around the cut ( totaling about 4-6" of grind/bevel and deep enough to glass with about 3-4 layers of 1.5 oz mat )
2. Apply 1.5 oz mat until the bevel has been filled.
3. Grind/fill and fair ( smooth it out as best you can ).
4. Apply Gel Sand and polish.

Done with the outside..

Of course there are some side steps on how to apply glass and gelcoat and finishing. But this post is not meant to be a full blown tutorial .

Lets take this step by step ( and others could chime in for a different way ).

Keep us posted and any questions just ask..

YD.

Edit .. Polyester is fine..

 

[castman27]

Re: My floor needs repair ( Pictures of Cut )

Re: My floor needs repair ( Pictures of Cut )

ok will take pic of outside , but what you mean by "bevel" sorry dont know nothing about boat structure.

 

[Yacht Dr.]

Re: My floor needs repair ( Pictures of Cut )

Re: My floor needs repair ( Pictures of Cut )

ok will take pic of outside , but what you mean by "bevel" sorry dont know nothing about boat structure.

Bevel is grinding deeper at your cut area and slowly bevel ( feather ) to then outside edges of the repair.

Basically .. "V" grind from your repair outwards ..

YD.

 

[castman27]

Re: My floor needs repair ( Pictures of Cut )

Re: My floor needs repair ( Pictures of Cut )

OK TY and also i should of ask before but just thinking of it do i can i install my stringers first or do the patching first???

 

[Woodonglass]

Re: My floor needs repair ( Pictures of Cut )

Re: My floor needs repair ( Pictures of Cut )

Fix the cuts first so the stringers don't get in the way.

 

[BWT]

Re: My floor needs repair ( Pictures of Cut )

Re: My floor needs repair ( Pictures of Cut )

IMO YD is spot on, a cut all the way through when possible should be dealt with from both sides (interior and exterior)... Follow his glassing schedule and you'll be good as new (or better). After that then address the other work like WoodOG suggests... Personally I like the 1.5oz glass as it adds some strength and is fairly easy to wet out with resin...