Scott Dunsworth Posted October 15, 2012 Posted October 15, 2012 Charlie you reminded me not to wait to long to get the sanding done after the glassing. I knew this from past experiences, but just procrastinated. All the other boats I build were in my insulated shop and it rarely got over 80 degrees in there. In my barn the temp would hit 120 some days and it really put the cure to the epoxy. This hull is sanding like concrete . The only up side to all this is I got a very good cure on the epoxy and it will be hard to sand into the glass. I picked up the carbide scraper and was pleased that it will cut my grinding in half. I have to sharpen it after about an hour but it sure makes a pile of epoxy shavings out of the high places. If I would have used the scraper a day or two after the last fill coat things would sure be easy er. About three hours in a day is all I can stand at once, mentally and physically. I'll just hit it a few hours every other day and it will be done soon enough. Quote
PeterP Posted October 15, 2012 Posted October 15, 2012 Scott, I really feel your pain. If you don't have one of those full sheet sanders consider getting one. Mine really did some good work for me. Save your shoulders for long boarding. Scrapers are great and you can re-sharpen them which you can't do with sand paper, but if you want to see stuff come off that hull in a hurry go power. PeterP Quote
Chick Ludwig Posted October 16, 2012 Posted October 16, 2012 "Carbide scraper?" Where do you get one of these? I've always just used a disc grinder and d/a sander, but I think it's time to try something new. Quote
Scott Dunsworth Posted October 16, 2012 Author Posted October 16, 2012 Chick it came from lowes has replaceable blades and is a two handled model, around $15. Mine had been laying around in my house painting supplies for a few years and I just never thought about using it. Peter are you talking about the one made with a piece of flexible plexiglass, that uses a whole sheet of paper? Quote
PeterP Posted October 16, 2012 Posted October 16, 2012 That's right. Sander/polisher so you can dial the speed down so as not to melt the epoxy and a home made platen that takes full sandpaper sheet. The platen is made out of 18oz glass. Description & pictures are on my tread way back when I started sanding ( page 2). PeterP Quote
Joe Anderson Posted October 16, 2012 Posted October 16, 2012 Peter might be talking about this. Mine is made from several layers of 6 oz glass laid up on window glass. Some 3M 77 sticks the paper to the disc. Watch the edges! Quote
PeterP Posted October 16, 2012 Posted October 16, 2012 Atta boy Joe and that leather apron is a REALLY SMART piece gear for people NOT needing an appendectomy. Looking forward to seeing all at the meet.PeterP Quote
Charlie Jones Posted October 19, 2012 Posted October 19, 2012 Charlie you reminded me not to wait to long to get the sanding done after the glassing. I knew this from past experiences, but just procrastinated. All the other boats I build were in my insulated shop and it rarely got over 80 degrees in there. In my barn the temp would hit 120 some days and it really put the cure to the epoxy. This hull is sanding like concrete . The only up side to all this is I got a very good cure on the epoxy and it will be hard to sand into the glass. I picked up the carbide scraper and was pleased that it will cut my grinding in half. I have to sharpen it after about an hour but it sure makes a pile of epoxy shavings out of the high places. If I would have used the scraper a day or two after the last fill coat things would sure be easy er. About three hours in a day is all I can stand at once, mentally and physically. I'll just hit it a few hours every other day and it will be done soon enough. LOL- Is this where I say- "told ya so"?? Glad the scraper is working for you. Quote
Scott Dunsworth Posted October 19, 2012 Author Posted October 19, 2012 I know Charlie I'm always messing up like that, causing myself more work. But on the bright side I won't accidently sand into the glass!!!!!!!!!! I'll be sanding in between rum and cokes this weekend, but having trouble finding any grit coarser than 80 locally for my 6 inch sanders. Quote
Docpal Posted October 19, 2012 Posted October 19, 2012 I've gone to places like the Depot (which will sometimes rent tools), and they sell LARGE sheets of heavy grit ( 24, 36, 40) for floor sanders...I buy a few sheets, and cut it to size. It works well when used for wet sanding as well... Quote
Scott Dunsworth Posted October 19, 2012 Author Posted October 19, 2012 Thanks I'll check that out. Quote
hokeyhydro Posted October 26, 2012 Posted October 26, 2012 After reading posts above I went out and picked up a carbide scraper. My new fav tool. The thicker blade doesn't seem to chatter and skip like the thin steel Red Devil blades, it just shaves, and shaves, and shaves . . . Quote
Scott Dunsworth Posted November 1, 2012 Author Posted November 1, 2012 Glad you like it, it is heavy duty. I'll keep mine close by in the future. Quote
hokeyhydro Posted November 1, 2012 Posted November 1, 2012 Yep, heavy duty and has replaceable blades. Quote
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