More about blowback

[rolmops]

I have always used the 12 pound torpedoes, but I have always wondered if there are any downrigger weights that have side fins under an angle that push the weight down and thereby forward much like a dipsy diver pushes sideways. Or is it really the water resistance of the cable that causes the back blow and if so, what would be the cable with the least blowback.

Also, what is the best material to spray on lead  torpedoes in order to cover the lead?

[LongLine]

The thinner the cable, the better it is to reduce blowback.  Coated cable has more blowback than uncoated. I tried 220 Lb and went back to the 120 Lb the next time out.

 

As to painting: Years ago I molded my own weights.  When the weight was fresh (i.e. bright, shiny and a little warm), regular Rustoleum worked great.  I still have a couple that the paint is still intact.

 

When the weight has turned greyish, the lead has oxidized.  Lead oxide is a passive surface, to which nothing will stick.  Chemicals to remove Lead oxide and activate the surface are very hazardous and I certainly DO NOT recommend sanding them. (lead dust)

 

They only thing you can use is a "rubberized" coating that encapsulated the entire weight. I think Flex-seal and Rubberized Rustoleum have sprays but they are difficult to paint over if you don't like the colors. 
 

[Silver Fox]

Lowe’s has a rubber coating spray I use on my torpedos and they hold up well. It’s not too thick either.

[sherman brown]

after using 13# pancake weights for years, we forgot to load them in the new to us boat. we found a pair of 8# dredge weights and had no choice but to use them. I was amazed at how much less blowback we got with the 8# weights over the 13# pancake weights. i have purchased a set of 10# dredge weights but haven't got to use them yet. i don't know if the side fins pull them down, but I'm a believer in the dredge weights. also called Herbie weights. hope this helps give you a little insight into weights with side fins.