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Black Tank Material

June 27, 2013, 04:48:04 pm

Pinhole and small crack in black tank. Anyone know what the black tank is made of in a 95? I called Foretravel (Mark) and he told me it was made by Inca Plastics. I checked their web site and all of their tanks are polyethylene. I started a repair with heat (lightly passing a soldering gun tip over the hole) when I noticed that the tank lettering indicated ELK Plastics. Whoa! Called Foretravel again and talked with James. He wasn't sure of the tank's material but said it was manufactured by Bonar Plastics. I called Bonar and they said ELKhart used to be part of their company but no longer is. That guy gave me a number for Elkhart Plastics which I'm trying now.

According to the guy at Bonar, if it's polyethylene, no sweat. Just like candle wax. However, if it's something called Crosslink, there is no repair. I'm hoping it's polyethylene or ABS. Anyhow, anyone know for sure? Here's a photo of the tank with a pick sticking in the pinhole. Thanks.
jor

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Re: Black Tank Material

Reply #1 – June 27, 2013, 06:27:00 pm

Z-Weld!

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Re: Black Tank Material

Reply #2 – June 27, 2013, 06:32:45 pm

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Z-Weld!

But I need to know what it's made of first. If it is polyethylene with crosslink, for instance, I don't think Z-Weld will work. I don't really know any more than what I've learned today. Stil hoping to ascertain the material. I'll try Elkhart Plastics first thing tomorrow. Thanks.
jor

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Re: Black Tank Material

Reply #3 – June 27, 2013, 07:07:58 pm

Have had good luck sealing all plastic tanks with the "Right Stuff" find it at NAPA.

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Re: Black Tank Material

Reply #4 – June 27, 2013, 07:48:53 pm

I scraped the ground and put a couple of 6 inch big cracks in the black water tank before I added air bags to our old SOB.  I tried everything including buying a plastic welder. Nothing worked and we had an embarrassing leak. Finally, I cleaned the area well, brushed boat epoxy on a fairly large area then laid several layers of glass cloth on keeping the cloth wet with more epoxy. Must have been fifteen years ago and the repair is still holding nicely today.

Pierce

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