Super Jet The wth happened to this glass job

[txsuperjetfreak96]

Not quite sure what happened, i sanded with 36 grit, wiped dwn with alcahol( prob not best choice) go ahead rip into me lol, i didnt clean with a grease and wax remover, course its been cold here in tx panhandle, i set up heaters and lights up around me while glassing, but when im done for the night, i turn all the lights and heater off, so im thinking that is messing with the cureing process, so couple questions,


1. Since its cold should i preheat the hull
2. Is it possible, to squege to much resin out,
3. Im useing us composites 3:1 epoxy resin, should i b useing 4:1 ratio
4 is there better epoxy resin out there besides us composites,


I saw someone posted a site where u can get the resin that trinity uses but was cheaper, and easier to wet the glass out.

Thx jeremy

 

[swapmeet]

Looks dry, and your surface looks dirty but I don't know how it looked when you put down the CF.

 

[txsuperjetfreak96]

Thats sanding dust from what i did tonight, surface was clean when i layed it down, on the back side of the cf u can tell it got wet enough, u cant c the fibers

 

[sethrrogers]

How did you lay the carbon? Did you paint the resin on the hull then lay the cf and reapply a coat or two of resin? Did you presoak the cf with resin before you laid it? That just looks way dry to me... I recently did the same..
Before I trimmed it...

Ill recheck the brand resin that I used.. It's whatever I had at the marina... As random as that sounds..

 

[txsuperjetfreak96]

Yeah i put a layer of resins then cf then put resin on top, i didnt soak the cf twill in resin

 

[Byeai]

the brand trinity uses is called resin research they have there own site I live 20 mins from where they make it amd 2 minutes away from where trinity gets there carbon from

Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

 

[lawmaster891]

I laid much of my glass in pretty cold weather here in texas. I sanded with 60 grit and used either acetone or alcohol to clean the surface. I don't have any experience with carbon. But when I applied resin to glass I used a brush to lather the resin and a squeegee to press out any excess. painted a thin coat on my surface and applied. Most of the time I checked every half hour or so to make sure the glass stayed down. Wrapping in tape helped to hold it down when I was able to . I used 3:1 epoxy resin from USComposites. I have heard stories of carbon not wanting to apply well without vacuum bagging.

 

[txsuperjetfreak96]

Yeah idk first its done this to me, i know the past couple of times ive thickend the resin with cabosol, if i sand it down with a da it get soft when it warms up

 

[McDog]

That was a job for fiberglass. Carbon is a pita. You should keep it warm overnight too.

 

[txsuperjetfreak96]

Thx mcdog, kinda figured it going from hot to cold messed with the setting up process

 

[swapmeet]

Yeah, I leave a couple 200W lamps on my parts over night when its cold.

 

[sethrrogers]

I guess I could have mentioned that I also used the 3:1 ratio. I sanded the bottom with 36 grit then wiped it down with acetone. Cranked up the kerosine heater and got the shop to Ab 55-60. i painted on the resin with a 1.5 inch brush, did not soak the cf,laid it on and applied another layer of resin.. I let it tac up while I spread out the excess with a blade. I repeated that process of reapplying the resin thinly twice and then set it inside my heated office for the night. Good luck with the repairs...

 

[txsuperjetfreak96]

Smc is weird sanding, its hard at times to tell if its roughed up good

 

[Matt_E]

Why are you you guys covering the entire outside of the bottom deck with carbon?

 

[txsuperjetfreak96]

I used cf on the outside of my chopped nose figured it would b easier to blend in, and look better

 

[sethrrogers]

Why not? I understand that you can just simply lay resin as sand but... You use thin carbon of course.. It'll add strucural integrity to the ski regardless of where it's placed..refinished the bottom deck evenly... Sure you'll have to blend everything in which isn't hard.. And then for those of us that had beat up bottom decks and can't afford a nice new eme or suprfreak ... God forbid even afford to buy the build parts for it... It offers up a fresh finish to the bottom deck and you can even leave it visual carbon... It hurt nothing so no bashing needed here.. Ill tell you what.. If it for some reason turns out to be a mistake... Lesson learned ill take it on the chin. i had a good time doing it.. and Ill rock the shiz out of te hull all year either way and break out the sander yet again next winter...

.. We all know resin adds weight but the carbon.. Well that's minimal at best..better for weight than biax or glass..

 

[WAB]

I don't think you sanded good enough or with coarse enough sand paper. You laid it right over the old black hull paint. The black hull paint looks hardly scuffed next to the CF. I use 36grit to prep before laying. Sand in 2 different directions to make a good crosshatch in the surface.

I also agree about painting a layer of epoxy on the surface before laying the wet cloth or CF.

 

[txsuperjetfreak96]

I did sand all the paint off, thats just where my glass ended up laying, i always put a layer of resin before glass

 

[txsuperjetfreak96]

Heres a pic right after i got done laying it

 

[BruceSki]

F carbon!!! Fiberglass for the win. Just dye it black if you want that faux carbon look.

BTW I did the bottom of my RN in a thin layer of carbon a few years ago and it worked out terrible. When I landed off the backside of a wave, carbon pieces would shoot out with water towards the nose of the ski. It was quite funny but it really worked terrible compared to what I expected.