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Harold_V said:
Now I need a good supply for zinc, as I've nearly exhausted all the scrap I had on hand.
I've been getting used wheel weights from the mechanic that works on my truck. There is a mix of steel, lead, lead alloy, and zinc weights. You have to melt them down to get the steel clips off the zinc weights.

Dave
 
My son sprinkled laundry detergent on his roof, sprayed some water, and a couple of days later the moss was black. Then he spray washed the moss off. Every so often, he sprinkles more detergent to keep the moss under control. 8)

I think he said, its the phosphorus that kills the moss...

Phil
 
When Whatman bought S&S, they stopped making S&S 596 papers, which I used for most everthing for about 20 years. They were cheap, thick, strong, medium speed, good retention, and had good acid resistance. Of all the papers I used, they were the best. I heard that there is a Whatman equivalent but I had problems getting a straight answer from Whatman.
 
Yes, it's a shame. Every now and then some of these legacy papers end up on ebay.

I've been on a big polypropylene felt kick lately.
 

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