Hull grinding

[75starflight]

Working on cleaning up the old tabbing on the cvz hull and I am just struggling removing the tabbing.

What type of grinding disc have you guys found works best?

[thedeuceman]

I used 40 grit, both soft discs ( not sur of the brand but they were green) and flap discs. I think the flap discs lasted longer. The blues norton ones were the best but kinda spendy. I got some package deals at menards for $10, had 2 ea 40, 60, 80, and some other stuff. They worked ok too.

[Plugcheck]

  I use 4.5" diamond segment disks, prefer Bosch or makita.  If memory serves me, they are about $12-$15.  Will cut all day, last through several boats.  Don't linger, they will cut right through.  Nothing faster or more aggressive.  Personally I like a rough surfice for new glass to bind to. Best part, they can cut and sand, lots of versatility.  Sanding disks also work,  but I generally save those for finer work.  Prepare for a mountain of dust

[75starflight]

Prepare for a mountain of dust

had to stop and vacuum 3 times last night, and I am not even a third of the way done. Ran into some tabbing that was not cured or had no resin in it at all.

[Plugcheck]

    The grinding residue is fairly awful as you can attest.   Wear a good respirator and work outdoors, but from your photos it appears that you are already doing this.  I found using the segmented disk, I could cut off most of the tabbing, so I didn't need to turn it all to dust, then use the bottom to sand smooth.  I think I will wait till October/November time frame when it is cooler to perform the tear down on the Timi.   Hot sticky weather and grinding glass are not good companions, I feel for ya.

[frankdevrieslentsch]

I'm using 3m cubitron 2 fibre discs, and they are doing a really good job.

[75starflight]

Well I picked up two 40 grit flapper wheels and they worked great but my grinder burnt up in ten minutes this evening so I am done for the night.

[Rosscoe]

Well I picked up two 40 grit flapper wheels and they worked great but my grinder burnt up in ten minutes this evening so I am done for the night.

Probably all full of fiberglass dust! Hope it was a cheapo at least.
Pretty miserable work in any case. Outside in the shade would be good.

[75starflight]

Well I picked up two 40 grit flapper wheels and they worked great but my grinder burnt up in ten minutes this evening so I am done for the night.

Probably all full of fiberglass dust! Hope it was a cheapo at least.
Pretty miserable work in any case. Outside in the shade would be good.

Yep chepo tool shop brand from Menard's. Was hoping to get it done thus week since temps have been in the low 80s. Oh well.

[makinwaves]

Like Mike said, the more you can cut off the less grinding there is to do.  I used a thin cut off wheel as much as possible on an air powered die grinder.  The dust won't bother that like it does an electric motor.

[75starflight]

Picked up a new grinder over my lunch today. $70 for a dewalt with a dust ejector for the motor. I guess I will find out how well it ejects the dust this evening.  One thing is for sure it is a lot heavier then my $30 tool shop that died.

[Plugcheck]

       When you buy quality tools, you only cry once.   I still have my original 4" Makita angle grinder, been through a number of cars, boats, and home projects.  Still works good, but I only use it with sanding disks now.  Use another 4.5" for cut off disks, and another 4.5" for metal grinding. In the long run, you'll find projects to use it on.

[75starflight]

       When you buy quality tools, you only cry once.   I still have my original 4" Makita angle grinder, been through a number of cars, boats, and home projects.  Still works good, but I only use it with sanding disks now.  Use another 4.5" for cut off disks, and another 4.5" for metal grinding. In the long run, you'll find projects to use it on.

I am sure I will since I still have the trailer for the CVZ to fix up.

[Rosscoe]

 When you buy quality tools, you only cry once.

Have not heard that one before. Good one.