Epoxy Preference?

Discussion in 'Materials' started by die_dunkelheit, Feb 15, 2012.

  1. CatBuilder

    CatBuilder Previous Member

    No. I won't.

    If you start something with a new user (the op) and continue to behave this way in on topic threads by lashing out at me, saying I made a big mistake on my build, I will not sit by idly.

    Yes, all evidence of this enormous, life threatening build mistake were scrubbed from the forum by the moderator. That is the best you can come up with as proof of this big mistake you keep bringing up?

    I knew you were just talking bs about my "build mistake" and had nothing to back it up.

    Don't start what you don't have the wherewithal to finish.

    Now you leave me and the op alone and you'll be all set.
     
  2. Boat Design Net Moderator
    Joined: Feb 2010
    Posts: 525
    Likes: 119, Points: 43, Legacy Rep: 1004
    Location: www.boatdesign.net

    Boat Design Net Moderator Moderator

    That other thread was closed because it became only a jab rather than a productive discussion; I don't believe posts were removed from that thread. If you want to learn about specific aspects of infusion, by all means start a new non-hostile thread asking the questions you want answers to or are curious about. Unfortunately, when people get hostile with each other and keep jabbing only for the sake of the jab, it's less conducive to learning and sharing information, and sharing projects, than when topics can stay focused on sharing information.

    This thread was titled "epoxy preference" so let's please let it be a thread sharing information about epoxy selection and properties and leave the scrapping with other people to some other website or offline please.
     
  3. Frosty

    Frosty Previous Member

    I would not even know what to ask, I was interested in the closed epoxy thread because it set up a picture of a build and the mistakes made upon it.

    I like to listen to my 2 airline pilot friends in the bar but I could not participate.

    In the same light I wont be appearing on this thread anymore either.




    Received the PM PAR thank you.
     
  4. Boat Design Net Moderator
    Joined: Feb 2010
    Posts: 525
    Likes: 119, Points: 43, Legacy Rep: 1004
    Location: www.boatdesign.net

    Boat Design Net Moderator Moderator

    Everyone makes mistakes, and I agree, much can be learned when people are willing to share their mistakes. But it's important to resist grinding the same spot over and over and over and instead keep discussions in a positive light that can focus on the actual information and make sharing more things possible.
     
  5. Yobarnacle
    Joined: Nov 2011
    Posts: 1,747
    Likes: 129, Points: 63, Legacy Rep: 851
    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    So, is the RAKA epoxies recommended? I epoxied a canoe stern on my motorsailer using West system. 4 gal at 100$ a gallon. I got a lot more rebuilding to do.
     
  6. Frosty

    Frosty Previous Member

    Absolutely, Cat builder could share his mistakes, which is a shame but its done now.

    I agree that a mistake can be a sore spot but he could have got help here on the forum, if he does'nt want to talk about it then why post it.

    He wants very much to discuss his boat but not that bit. I suppose.

    Any way you've made your mind up and its done, I do'nt suppose you would consider reopening it.

    PS I dont even know what mistake he made, It was just getting to it.
     
  7. Boat Design Net Moderator
    Joined: Feb 2010
    Posts: 525
    Likes: 119, Points: 43, Legacy Rep: 1004
    Location: www.boatdesign.net

    Boat Design Net Moderator Moderator

    It would not be productive to reopen the closed thread as it appears likely to only result in further jabs (as evidenced even here, where that thread continues to take the discussion away from epoxy properties and selection and reduces the likelihood of sharing.)

    It would be better to have a thread free of the jabs and focused on more productive sharing of information. This could be that thread. If you have some questions regarding epoxy properties or epoxy selection, please post them and let's get the discussion going in a productive direction and away from the jabs.

    Or if you want to learn about infusion, why don't you start your own small infusion project and then post questions beforehand or along the way when necessary for others to help you with, whether it is your own resin selection (do you use Mas infusion resin where you are in Thailand there?) or details of the infusion process that you are particularly interested in.
     
  8. Frosty

    Frosty Previous Member

    Since you ask I only know of Kossan epoxy in 2 tins, I mix it on a bread board with a scraper looks like ice cream and the hardener looks like thick treacle.

    I have in the past rolled it into glass matting, took a while but it wetted through,-- at least epoxy takes a good few hours to go off so I had the time to work it in.

    I was very pleased with the results which was aprox 1 foot square section.

    The Kossan epoxy is actually a glue and is thick like a filler.

    My epoxy skills are little and I have even less to offer anyone on this subject.

    I could start a thread titled " How to muddle through with epoxy' but what good would that be.

    I don't know what MAS epoxy is, never heard of it.

    Most threads on the subject contain information and product I am oblivious to.

    I actually thought West system was epoxy sold by West Marine the American schandlery store, im still not sure.

    Some one gave me some liquid stuff but it didnt go off and I had to scrape it out.

    Im sure you will agree I have not much to offer.
     
  9. PAR
    Joined: Nov 2003
    Posts: 19,133
    Likes: 482, Points: 93, Legacy Rep: 3967
    Location: Eustis, FL

    PAR Yacht Designer/Builder

    Raka is a particularly thin formulation, which is nice when working with heavy or multiple layers of fabric. It's a disadvantage when filling a weave. They do have a thicker resin (900 HP), which makes a better general laminating product. This slightly thicker resin is formulated for more strength, so a good fillet making, structural bonding product.

    For the back yard builder, any of the major brands will work. I often recommend Marinepoxy from Bateau.com. It's a 2:1 formulation and the slow is all but non-blush, unless you conditions are so bad that anything will blush. I've never used anything but their slow, therefore I can't speak to the medium or fast (call Joel). If you purchase a few gallons, you'll spend 50% to 60% less then West System or System Three. Raka is about 30% cheaper then West System and System Three. I haven't used Progressive personally (where are you Paul), but I have used the base resin supplier they use (well one of them anyway) and you can get epoxy even cheaper, but you'll need some resale licensing for the best prices.
     
  10. Yobarnacle
    Joined: Nov 2011
    Posts: 1,747
    Likes: 129, Points: 63, Legacy Rep: 851
    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    thanks PAR
    Raka interests me cause they're in FT Pierce and so is my IntrepiDos nearby. Have a friend who used to build skiffs. He used carpenters line chalk as a filler and pigment in polyester resin. I tried it in West epoxy. Seems to work as well as cabosil and colors white, red, blue, or yellow. Any reason I couldn't thicken the Raka epoxy?
    I don't thicken structural assemblies, just final fairing.
     
  11. cthippo
    Joined: Sep 2010
    Posts: 812
    Likes: 52, Points: 28, Legacy Rep: 465
    Location: Bellingham WA

    cthippo Senior Member

    I've been using the System 3 products mostly because they're readily available around here. Being able to walk into Redden Marine and buy a couple of quarts when you need it is nice.

    Of course, Redden carries the System 3 epoxy I like, but I have to go to LFSI for the mixing cups I prefer. Oh well, spread the love around I suppose.
     
  12. michael pierzga
    Joined: Dec 2008
    Posts: 4,862
    Likes: 115, Points: 0, Legacy Rep: 1180
    Location: spain

    michael pierzga Senior Member

    Yah...Mixing cups. Mix ratio. I prefer simple two to one ratios when mixing chemicals like epoxy or paints. .

    Four to one , or whatever, can create mistakes and is very wasteful when mixing small quantities.
     
  13. cthippo
    Joined: Sep 2010
    Posts: 812
    Likes: 52, Points: 28, Legacy Rep: 465
    Location: Bellingham WA

    cthippo Senior Member

    I won't even try to do anything less than about 6 Oz mixed resin. Anything smaller than that should be done by weight and I haven't bothered to get the scale and whatnot for it.
     
  14. rasorinc
    Joined: Nov 2007
    Posts: 1,854
    Likes: 71, Points: 48, Legacy Rep: 896
    Location: OREGON

    rasorinc Senior Member

    1 person likes this.

  15. michael pierzga
    Joined: Dec 2008
    Posts: 4,862
    Likes: 115, Points: 0, Legacy Rep: 1180
    Location: spain

    michael pierzga Senior Member

    Oh gee...I get these cheap mixing cups by the dozen from the paint supplier that can accurately measure 10ml. No problems when working with 2 to 1 ratios.

    When working with awlgrip at 200 euro per quart , waste is to be avoided. 10ml equals a 30ml batch ...about perfect for a one inch chip brush and many everyday jobs.

    I avoid Scales and pumps . Scale measure weight so a mental calc is required , its One more piece of stuff and you never know if they work. If you are a pro builder, gear and its service is part of the game. Im not ...I only work as a fitter on boats 7 days a week.


    Gee... Ive never investigated...what is the measure weight for awlgrip when using scales ? 2 to 1 Epoxy is something like 43 hard to 100 resin
     
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.