kristeels boards rusty

[Spuds]

help need please have genuine kristeels borads is it possible to sand blast them to remove rust . what best way to clean them besides in work.what type of sand pads are best.t

 

[Ley253]

Done many over the years. Use a 4.5 inch grinder, grind till pits are gone, then sand. Pits will reappear, grind again, and sand again till they are gone. The grinder hides the pits by burring over metal, sanding removes this.
Depending on the board, and amount of rust, dont plan any evenings out for a couple of weeks!
Sand blasting will remove the rough rust, and replace it with rough metal.
Bilt Hamber DE-OX C will remove all the rust, and is biodegradable, a shallow soaking tank with a solution of that in may be a good starting point.

 

[Howard150]

No ‘easy way out’
Get them shotblasted to remove any surface rust or scale if they are really bad. If you get rid of the rust it will not clog your disc up. Never use a grinder. You will end up through the hard and reduce even further the life of the board
Get some klingspor 80 or 100 grit ACT and polish them. Might take an hour or more each. You will find they become work hardened. Put them to work and the soil will do the next bit. Kristeel will scour even when pitted.
After a days ploughing hit them again with 100 or 120 Klingspor ACT (ceramic abrsive). Keep your disc flattish to the work and leave the trail as the marks left by the soil. Bring them up to a shine but no need to polish them. Kristeel scouring relies on the microscopic grooves on its surface.
Quickest way to put them to rights. Trust me.
If you have some pits then spot them with a mig. This will give you an amalgam of the hard material. Use 36 grit ACT to flat them back to level.

 

[Spuds]

thank you both for ur help.

 

[Ley253]

removing too much metal was one reason for mentioning the 4.5 grinder! Anything larger can leave tramlines in the boards!The boards I cleaned up in about 1975 or so, are still in use, and without holes, So I dont think I did too much damage!
I wish modern abrasives had been around then, those RND boards took around three days to get to a reasonable finish!

 

[Spuds]

will go with both your addvice thanks again.will let ye know how i get on with them cheers

 

[Ley253]

will go with both your addvice thanks again.will let ye know how i get on with them cheers

Follow Howards, be much quicker!

 

[wuddy]

Done many over the years. Use a 4.5 inch grinder, grind till pits are gone, then sand. Pits will reappear, grind again, and sand again till they are gone. The grinder hides the pits by burring over metal, sanding removes this.
Depending on the board, and amount of rust, dont plan any evenings out for a couple of weeks!
Sand blasting will remove the rough rust, and replace it with rough metal.
Bilt Hamber DE-OX C will remove all the rust, and is biodegradable, a shallow soaking tank with a solution of that in may be a good starting point.

I have used de-ox c gel on a few boards. Apply the gel and wrap the boards in cling film for 48hrs iirc! Removes all rust, boards will still be dull though but I have just put them straight to work and cleaned up a treat after a couple of days.

 

[Ley253]

I have used de-ox c gel on a few boards. Apply the gel and wrap the boards in cling film for 48hrs iirc! Removes all rust, boards will still be dull though but I have just put them straight to work and cleaned up a treat after a couple of days.

Good man! I use de-ox c liquid often, and have been amazed at its success, couldnt get on with the gel though, but never thought of cling film.

 

[madmatt]

Whats the score with the de-ox liquid? I have seen on the website their small bottle makes up 20 litres, i have a plough i am messing about with and want to clean the boards and discs,

My plan is to cut a 45 gallon drum down its length and make a good sized bath i assume for best results it would be to mix up just enough to cover the boards then remove them and drain the bath and mix fresh before dipping the other bits rather than mix 20litres and just keep dipping bits?

 

[Ley253]

Make bath from plastic, mix the lot, using warm water, then just fill the bath with all the bits you can get in at a time. When the fluid turns black, it is dead, dump it down the drain, its bio degradable.

 

[madmatt]

Make bath from plastic, mix the lot, using warm water, then just fill the bath with all the bits you can get in at a time. When the fluid turns black, it is dead, dump it down the drain, its bio degradable.

Many thanks for the reply, ok so a plastic bath is better, that's a bugger thought i had finally found a use for a empty drum! Lol

 

[Ley253]

Plastic is essential, chem will react with a metal one.

 

[madmatt]

Plastic is essential, chem will react with a metal one.

That does make perfect sense. Just need to find some thing plastic and big!

 

[wuddy]

That does make perfect sense. Just need to find some thing plastic and big!

Sure you will find a plastic 45 gallon drum somewhere! I just used the gel for easiness

 

[madmatt]

Sure you will find a plastic 45 gallon drum somewhere! I just used the gel for easiness

I am sure you are right. I am toying with the idea of the gel for the boards still got to unbolt it all yet so will see what shows up in next couple of weeks.

 

[wuddy]

I am sure you are right. I am toying with the idea of the gel for the boards still got to unbolt it all yet so will see what shows up in next couple of weeks.

Ad-blue and chemical for pressure washers come in them so sure something will turn up

 

[Howard150]

Sure you will find a plastic 45 gallon drum somewhere! I just used the gel for easiness

If all else fails just line your metal one with 300 micron Visqueen. Either that or knock a wooden trough up long enough for the boards and do the same.

 

[Mydexta]

Empty Ibc, cut just deep enough to let you’re parts get fully submerged

You’ll get plenty in at one time

 

[madmatt]

Yes i had thought about an ibc cut down shallow. Hadnt considered lining a steel deim but i suppse dpm would woek if needs must.