greengobbler
New Member
Can you use cutting compound and a mop on grp or will it just savage it?
Cutting compound
- Thread starter greengobbler
- Start date
oceanpilgrim
Well-Known Member
Yes you can use cutting compound,I find 3G works well or any brand maked for grp,do not use T-CUT as this is amonia based and will turn white to yellow/white very quickly
greengobbler
New Member
ok, thanks Pilgrim
Scotty_Tradewind
Well-Known Member
toothepaste is a cutting compound, if you have that handy try it on a small area. A bit expensive to do all the topsides on a 50footer though. 
greengobbler
New Member
hah, its only for a cabinet side!! thanks though, might try some colgate
VicS
Well-Known Member
Look at the Farecla website and in particular the marine section.
http://www.farecla.com/
Older type compounds had to be used with a closed cell foam compounding mop that was run at a slow speed and kept wet. Different grade mops for different applications
Newer compounds are self lubricating and can be used with a lambs wool polisher. (not tried them yet).
Finnish off with a good wax polish.
Some "before and after photos" of my boat this spring
http://www.farecla.com/
Older type compounds had to be used with a closed cell foam compounding mop that was run at a slow speed and kept wet. Different grade mops for different applications
Newer compounds are self lubricating and can be used with a lambs wool polisher. (not tried them yet).
Finnish off with a good wax polish.
Some "before and after photos" of my boat this spring
Last edited:
richardbrennan
Well-Known Member
I used 3M "Marine Imperial Compound and Finishing Material" on my dark blue hull this year as it is now eleven years old and was looking a bit chalky in places; this was followed up by 3M "Finesse It" and then polish. The Finishing Material was applied on a 3M white wool pad and the Finesse it by a yellow wool pad, again 3M, the polish was applied by hand. I used a Rupes polisher which has a slow speed compared to most and is very light in weight but it was fairly expensive. Resuklts were I think first class judged by the comments I received including many from the various professionals wandering by. However, it is not a quick process, my 33 footer took about a day a side for each process.
VicS
Well-Known Member
Dark blue hulls usually do seem to polish up well and if only eleven years old should come up looking like new.
My red hull is over 30 years old so very pleased with the results after a couple of afternoons work. It has been done a couple of times previously the first when it was about 10 or 11 years old. The results then were so good that other people in the yard thought it had been spray painted!
My red hull is over 30 years old so very pleased with the results after a couple of afternoons work. It has been done a couple of times previously the first when it was about 10 or 11 years old. The results then were so good that other people in the yard thought it had been spray painted!
Scotty_Tradewind
Well-Known Member
yes it really is amazing the difference a good cutting compound can make.
A friends Twister with dark green gelcoat had gone all chalky and that has polished up a treat.
Mind you some of the old gelcoats will almost go on being cut back and polished forever with the wonderful thickness of gelcoat that was applied.
A friends Twister with dark green gelcoat had gone all chalky and that has polished up a treat.
Mind you some of the old gelcoats will almost go on being cut back and polished forever with the wonderful thickness of gelcoat that was applied.
aslabend
Well-Known Member
anyone ever tried burnishing cream, very fine cutting compound used on french polish? Bought my stainless sink up a treat.
Marine Reflections
Well-Known Member
Would agree with richardbrennan 100% 3M is the way to go, and a Rupes polisher 1.9 kg slow start with tons of torque.
Warpa
Well-Known Member
Look at the Farecla website and in particular the marine section.
http://www.farecla.com/
Older type compounds had to be used with a closed cell foam compounding mop that was run at a slow speed and kept wet. Different grade mops for different applications
Newer compounds are self lubricating and can be used with a lambs wool polisher. (not tried them yet).
Finnish off with a good wax polish.
Some "before and after photos" of my boat this spring
Holy thread resurrection Batman, just doing a google search on a similar topic and this came up. As you can see, leaving a boat to get to that state cannot be buffed out unless doing a wetsand...it has a shine, but all the oxidation can still be seen under it and will be back as soon as the wax fades.
VicS
Well-Known Member
In fact compounding with a medium grade rubbing compound removed practically all of the oxidation.
Javelin
Well-Known Member
We use Farecla G6 and then finish with 3M "Finesse It" in the yard.
The 3m is very expensive, around £30 for a lt bottle but it is very good.
The 3m is very expensive, around £30 for a lt bottle but it is very good.
dingdongs
Well-Known Member
aquabuff 2000 is the one 4 excellent results and the 5kg pot will last you and all your mates an eternity;
http://www.as-composites.co.uk/index.php?main_page=index&cPath=217_228
may be able to find elsewhere but as its waterbased you can also spray water on too to keep it wet on your buffer.
http://www.as-composites.co.uk/index.php?main_page=index&cPath=217_228
may be able to find elsewhere but as its waterbased you can also spray water on too to keep it wet on your buffer.
nigelmercier
RIP
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Quite. No reason why it wouldn't. Is your boat still nice any shiny? Very impressive.
VicS
Well-Known Member
Four years on its beginning to look a bit faded again. Over the years I've compounded it several times. Each it is a little less effective than the time before and lasts for a shorter time than the previous. I guess one day it'll need wet sanding, but I don't suppose it will be something I'll ever get round to doing. Boats are for sailing, not forever polishing.
Warpa
Well-Known Member
Perhaps its my old eyes but the fading can clearly be seen beneath the shine. As said above the 3M products cant be faulted and are my weapon of choice at present. Those with a Flex rotary get me by.
VicS
Well-Known Member
Looked good enough to me for half a day's effort.
Its only a boat ... for sailing, not polishing.
