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Tools - Fiberglass and Wood

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  • Tools - Fiberglass and Wood

    I read through the safety sticky and it talks about safety equipment which is great. I was wondering if some of you could expand upon that with some recommendations and brands and models. For example, paint and resin requires respirators capable of handling VOC's but many of those you can buy say to not use them on dust (grinding fiberglass). So, looking for recommendations for painting, epoxy application, urethane application, cutting/grinding fiberglass, and cutting/grinding wood.

    Maybe we could compile a list as follows with some good brands and models listed that are affordable and stand up to the rigors of working boats:

    Safety Equipment

    Respirators for Paint mixing and application
    Respirators for Epoxy mixing and application
    etc

    Tools for Working Materials

    Sanding/Prepping Fiberglass (Like the Hull at the Transom)
    Grinding/Prepping Structural Fiberglass (Like stringer bases away from the Hull)
    Grit for Sanding Materials for various jobs
    Blade types and coarseness
    Tool speed
    etc

    An example of applying this list is that I am wondering whether to use a right angle grinder with a 4 inch disk, a 6 inch DA sander, or 8 inch buffer with coarse sanding disk to prep the hull for bonding the new transom plywood. Along with this, what grit to use and can I do it in one pass or start with coarse and finish with fine. Also, what speed in different applications.

    Please let me know if I missed this somewhere on the site.

    Thanks....

  • #2
    affordable tools are not good tools

    for example, a 4.5" harbor freight grinder will most likely smoke the 2nd time you use it. however a 4.5" dewalt will last decades

    that being stated, time on a tool helps you determine which tool is best for the task on hand.

    I would never use an 8" buffer, however I would use a 7" variable speed polisher for the final polish after wet-sanding



    for hull restoration, you will need the following at a minimum:

    sawzall with variety of blades (mostly 10 TPI)
    multi-tool with variety of blades and attachments
    circular saw with a few carbide blades
    jig saw
    drill, with assortment of wire cup brushes and drill extensions along with some carbide burrs
    4.5" quality angle grinder and 24, 36, and 40 grit discs (not flap wheels), cut-off wheels, and some heavy duty cup-brushes

    for fine sanding of fairing or gel, a 6" DA, either pneumatic or electric

    a good shop-vac brand shop vac. get the filter bags

    for PPE:
    tyvek suits
    full-face 3M respirator
    work gloves
    nitril gloves

    you will need bandages and bandaids

    Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

    1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - https://forums.iboats.com/forum/owner...988-rogue-2420

    Past Boats
    1970 Wooster Hellion - Merc 9.8
    2002 SeaRay 190BR - 5.0 - A1G2 - "Cheeseheads in Paradise"
    1984 Avanti 170DLI -3.0 stringer- "Ship Happens"

    What’s behind you doesn’t matter.Enzo Ferrari

    Comment


    • #3
      I disagree with the harbor freight grinders. I bought 2 for $20 in 95. Used them at magic mountain theme park for 5 years and then continued to kill them 4 the next 18 years. First one just died.... dropped it and broke the switch..... 2nd still working. Think I got my monies worth!!!!

      Comment


      • #4
        Originally posted by froggy1150 View Post
        I disagree with the harbor freight grinders. I bought 2 for $20 in 95. Used them at magic mountain theme park for 5 years and then continued to kill them 4 the next 18 years. First one just died.... dropped it and broke the switch..... 2nd still working. Think I got my monies worth!!!!
        Froggy, I understand what you're saying but...fiberglass dust will kill the HF $12 grinders pretty quick. They have Cheap Brushes and bearings. There ARE some things you can do to extend their lives but...they won't last as long as the quality tool brands. Years of experience on this forum has proven this to be true.

        I agree with Scott about needed tools with a few more details.


        A $100 full face respirator is the BEST All around unit. They make different cartridges for different particulates.
        https://www.amazon.com/3M-Facepiece-.../dp/B007QY8WTY
        IF you can smell the odor of the product being worked on...It's time to change filters.

        40 grit resin coated grinding discs with a rubber backup pad is all that's needed. Nothing has to be any smoother than what the 60 grit will produce.

        The multi tool with half moon blade with cut most everything you need but a Sawzall with long flexible blades is nice for removing stringers.
        Last edited by Woodonglass; January 4th, 2019, 06:09 PM.
        1961 Lonestar Flamingo - SPLASHED...Kinda!!
        Fabricating Decks, Stringers, and Transoms
        Paint Your Boat with Tractor Paint...Say What!!!

        Comment


        • #5
          I do blow everything out several times while working and when finished to keep dust to a minimum inside the tools I use to grind. It does help to keep them running in these harsh conditions. I have a 9 Inch that was my dad's from the early 1960s and it runs Strong too. I gave it its own "respirator" on the air intake vent along with good maintenence

          Comment


          • #6
            I'm glad to see someone stated a good vacuum cleaner. I can't even begin to say how many times I've used my shop vac. Even after the grinding dirty work is over, you still have to clean the hull out before you do anything else...almost daily! I built a Dirt Deputy setup to help keep the motor clean when grinding and vacuuming fiberglass dust. The fine dust gets into everything including the motor if you don't have a good filter on it. And that creates low suction and heat. That is what kills motors faster then anything. JMHO

            Also, I like using flapper discs myself when grinding old/new fiberglass. Some people don't like them, some do. I suggest you give both a try and chose for yourself. And the tyvek full body suit is a MUST. Unless you want to be the most miserableness, itchy, scratchy person on the planet, use one with gloves and head gear. You will understand why if you don't. Eyes, ears, nose, mouth and every other place on your body will need to be covered to avoid the fiberglass dust problems. If you have one little opening, you will pay for it. And you can buy tyvek suits, even at Lowe's, for not very much. A fan helps keep the dust off you as well. JMHO

            And I 1000% agree with Woodonglas's suggestion about a good 3M respirator. They are the best and can be fitted with different cartridges for different uses. Get the vapor type for Epoxy and Polyester resins and paints of all types. And you can get dust type filters for the fiberglass dust. The last a really long time and well worth your lung protection indeed. Some of the chemicals you will use are two part catalyst types that if they get into your lungs will stay there. NOT GOOD!
            Tom Boy Boat Project https://forums.iboats.com/forum/boat...s-what-trailer
            Rebuilt trailer project https://forums.iboats.com/forum/gener...r-back-to-life
            '76 40 HP Johnson rebuild https://forums.iboats.com/forum/engin...mplete-rebuild
            Minn Kota 599 Project https://forums.iboats.com/forum/boat-...ta-599-project

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            • #7
              The last two HF grinders smoked in the first 30 seconds of use and I didnt even touch the work yet. I have a pile (7 to be exact) of HF die grinders missing the magic smoke as well

              Im done buying HF electric tools.

              My 30 year old craftsman (dewalt) is on its 3rd chord, 4th rubber backing pad, 2nd re-pack of the gear head, however is still going strong.

              It has built 4 hot rods, restored 12 vehicles and 4 boats
              Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

              1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - https://forums.iboats.com/forum/owner...988-rogue-2420

              Past Boats
              1970 Wooster Hellion - Merc 9.8
              2002 SeaRay 190BR - 5.0 - A1G2 - "Cheeseheads in Paradise"
              1984 Avanti 170DLI -3.0 stringer- "Ship Happens"

              What’s behind you doesn’t matter.Enzo Ferrari

              Comment


              • #8
                Trust me I am no fan of hf but I have been waiting for these things to die..... and I treat them like what they are .... junk. Maybe their junk was better back then ....

                Comment


                • #9
                  Switch sucks on them I wired mine to run. And took it apart and greased it when I got the second one. They dont like continual use they overheat. Once I was finished with the boat it last forever. Just dont let the head gears get red hot LOL.
                  Dance with the waves,
                  move with the sea.
                  Let the rhythm of the water
                  set your soul free.

                  1987 Four Winns 170 Horizon.

                  Comment


                  • #10
                    If you are interested in the better grinders, but don't want to spend large amounts of money, look for used one on Ebay or even a local pawn shop. You can get them some times for a song. Then open them up, clean them and replace anything that needs replace. And the parts are usually available on Ebay as well, cheap.

                    I have rebuilt a few of them years ago and still using them today. They are very good Dewalt grinders. Just an idea if you know how to rebuild tools.

                    Dewalt has part break downs all over the web to let you get part numbers and buy parts. You will have a perfectly running quality grinder for a fraction of that grinder new. And lets face it, after one grinding section, a new one will look exactly like your rebuilt one anyway. JMHO
                    Tom Boy Boat Project https://forums.iboats.com/forum/boat...s-what-trailer
                    Rebuilt trailer project https://forums.iboats.com/forum/gener...r-back-to-life
                    '76 40 HP Johnson rebuild https://forums.iboats.com/forum/engin...mplete-rebuild
                    Minn Kota 599 Project https://forums.iboats.com/forum/boat-...ta-599-project

                    Comment


                    • #11
                      I would also disagree about HF, there not super quality and agree a Dewalt is much better. Fiberglass dust will destroy any brand. But you also cant buy the cheapest one they offer. Any of the drill master or w.e the brand is, are the cheap ones that will last 5 min. Get the 20% coupon or they usually have a coupon for the next level up one. They will last with a little care.

                      I bought the lower level dust bags for my shop vac, they say there not for drywall dust but they have caught everything I have thrown at them. I got a 3 pack at menards for like $8. My filter has had no dust on it at all and I have filled 2 of the 3 bags to the brim so far.

                      I also have different filters for my face mask, one for dust and one for VOC's.

                      Comment


                      • #12
                        Fiberglass dust is really bad on any tool .. I have no problem with the el cheapo grinders for glass .. I think I am on my 3rd one so far plus 1 dewalt .. The dewalt lasted maybe a tad longer but not much .. 10 bucks for a hf that you know is gunna catch heck vs a way more expensive one that’s gunna catch heck also .. But then again you could put me in the old cheap sob category..
                        ---------------------------------------------------------------------
                        '64 MFG Rebuild
                        MFG forum thread https://forums.iboats.com/mfg/64-edin...ay-524708.html
                        https://forums.iboats.com/forum/boat-...ve-the-manatee
                        https://forums.iboats.com/forum/boat...at-restoration

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                        • #13
                          havent tried the sanders but got the 17 dollar drill from hf it smoked in less then 5 minutes using it to remove decals lol
                          project:https://forums.iboats.com/forum/boat-...r-2159-hardtop
                          Previous project https://forums.iboats.com/forum/boat...rint-bass-boat
                          Previous previous project/conversion https://forums.iboats.com/forum/boat...rsion-splashed

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                          • #14
                            I like the idea of the 3M mask that Woodonglass recommended, however, I wear glasses and the reviews say they won't work with glasses. Is that true or is there an alternative full face mask that does work with glasses?

                            Also, which filters are recommended for epoxy/resin and which filters for fiberglass dust/grinding?

                            Thanks for all the information.. I start sanding and grinding on the transom this coming Saturday...

                            Comment


                            • #15
                              Sign up today
                              You use particulate filters for grinding dust, and organic vapor filters for fumes, both available for 3m masks. Polyester resin which uses mekp requires a vapor filter, with epoxy resin its optional, i dont use a mask at all with epoxy, except when grinding/sanding it.

                              I use a full face mask when grinding hull glass, without my glasses on......glasses are pretty much irrelevant in the dust cloud you will dwell in

                              If u must, then a head sock and half mask will be fine, just rub your face in talc to prevent itching.
                              "We all come from the sea. But we are not all of the sea. Those of us who are, we children of the tides, must return to it again and again."

                              Current Boats
                              10' tin gamefisher/Johnson 7.5hp ob
                              1991 Sea Ray 170br/AlphaMerc
                              1996 Century 1800 CC/Yamaha c85
                              1988 Imperial 280SF (under the knife)
                              1972 Checkmate mx-15

                              https://forums.iboats.com/boat-restor...cs-598307.html

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