sanding

[downtownfish]

I have read through this forum and found a few sanding threads and didn't see any mention of a Makita 9227 which is a buffer or sander. Runs very slow or super fast but no random or orbital settings. My friend who builds surfboards lent it to me for my boat job. It seems it is the surfboard industy standard for sanding boards. Does anyone uses these on boats. I am removing crappy paint and sanding the OG gelcoat of a 15ft boston whaler. Any input? I tried to post this question on another sanding thread but they said they are over 880 days old and do not allow new post.(putting that out there for the forum police)

[downtownfish]

Originally Posted by Trim Dcent

I would try sanding a Trelge or a Base Board Heater in diguise of a vorting V bottom Vulch or a Vulcher. If you could kill a bird in disguise of an Army End you see here and you would devise a way to see it in the end of the movie across the port bow or the winding road type of peev here or the violint V Hull of V lints or croak a bull frog untill you see end and i was Saying to seal off the end of the dowl and sand a door for an hour and sand the door off untill you see the end of the vaylo or the violint one you call Door!

Holy sh*t I have a lot to learn. I am assuming this is by accident.

[Petros]

best way to remove paint is with stripper or a heat gut. do not use the heat gun if you will damage the underlayers, so chemical stripper is it. One relatively inexpensive stripper that is non-toxic is Citristrip available in big box stores, another is something called Soy-Strip or something similar (it has a soy bean derivative as the active agent).

Sanding is always a last resort to removing old finish. Many would prefer hand sanding so you do not damage the structural fibers of a composite hull. If you expose fibers you have weakened the layup.

[PAR]

Scrape, scrape, scrape is the best way, though it does require skill or you can make a mess pretty quickly. A sharp scrapper is a wonderful thing. You can sharpen one in less then a minute, if it's in good condition and they are very precise. They are also much better for the wood and especially the finish, particularly if varnished or epoxied.

Chemical strippers can stain the wood, harm fasteners and often raise the grain. Heat guns usually scorch the wood, even if handled skillfully, you'll have a burn mark or two. Sand paper is what it is, leaving a fuzzy, torn up surface (compared to a scraped surface) that takes paint well, but not so much for a bright finish.

The original poster is referring to a buffer/sander. It's a pure disk sander, usually 6", 7", 9" and 10" sizes. I have a 7" and a 10" that I use often. They are for bulk removal and smoothing operations. I have 24 grit on the 10" and it can eat through a 1/4" plywood panel in a matter of seconds. This is the point of the machine, bulk material removal. Naturally finer grits will smooth more then wholesale eating, but a good tool to knock down high spots with. The 7" I use for smoothing, buffing and polishing mostly.

[downtownfish]

Thank you so much guys. I am going to buy it on my way home after work. I had planned on sanding the whole thing down, so this will give me a head start.

[downtownfish]

It will not affect the fiberglass if it soaks all the way through the paint will it?

[pescaloco]

Originally Posted by downtownfish

I have read through this forum and found a few sanding threads and didn't see any mention of a Makita 9227 which is a buffer or sander. Runs very slow or super fast but no random or orbital settings. My friend who builds surfboards lent it to me for my boat job. It seems it is the surfboard industy standard for sanding boards. Does anyone uses these on boats. I am removing crappy paint and sanding the OG gelcoat of a 15ft boston whaler. Any input? I tried to post this question on another sanding thread but they said they are over 880 days old and do not allow new post.(putting that out there for the forum police)

To answer your question directly I Don't think the Makita polisher/sander is the the right tool for the job. You would be better off with a D/A dual action sander and some hand sanding for your 15 foot Whaler.