Thread: Table Saw Top

If it is not causing any trouble then I will just ignore it.

Has it been particularly hot up there lately? Sounds like it's melting.

Originally Posted by spartan

On the two cast iron extension wings, you can see teh faint outline of the supporting ribs underneath.

I've called the place I purchased the saw - who told me that this is sometimes a legacy of the cast iron tempering process.

I've checked for flatness - still perfectly flat.....

Anyone have any experience with this.....

I know the effect you are referring to as my saw also exhibits the same phenomena. I don't know what causes it, but it doesn't seem to affect the saw in anyway. As wise one Wong says, don't worry about it.

If it's still perfectly flat, I would use it and enjoy!!!

Is it very fine corrosion, possibly caused by a condensation differential due to different cooling rates? Pure speculation, but it might clean up with turps & steel wool.

Yep its caused by condensation, the thicker ribs take longer to warm/cool compared to the flat areas. Just like the frame of your car bonnet on a cold night...

Hmmm, that very interesting..... Because looking at it I've thought ... it looks as if it would polish out.....

Might give the steel wool and turps a go....

Will report back....

Well thanks for the tips guys... I seem to have largely fixed this....

I put some CLR on it and some elbow grease, and then ran the mouse over it with a nylon pad attachment.

I then cleaned it with turps, and cut and polished it with an automative polish....

Finally hit it with silver glide....

I think that this may have come from the time when I just used to put a coat of Inox on the table....probably for the first month or so....

I then went to a drop cloth and lanolin spray.....