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Thread: R75/5 OEM Gas Tank Lining Material?

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  1. #1
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    R75/5 OEM Gas Tank Lining Material?

    I have a nice tank to cleanup before I paint it. I can see no indication of rust inside. I am experienced with both POR-15 & KBS-similar if not same products & I but KBS from a local AP store-KOI- off their shelf so no shipping & handy. Like many, including Snowbum, I'm no fan of Kreem having had to dig it out of a tank. What is the red coating used as OEM? I am looking into RedKote and have emailed them with questions. The Caswell kits are more expensive than other routes. The RedKote is lots cheaper on ebay than form mfg.. Seems I read that the BMW/OEM is a good choice on nice tanks with little to no damage inside as easily redone. I searched some here & google but still have questions. What say the "experts"???
    "If I had my life to live over, I'd dare to make more mistakes next time...I'd relax,I'd limber up... I would take fewer things seriously...take more chances... take more trips...climb more mountains...swim more rivers...eat more ice cream." Jorge Luis Borges at age 85.

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    Registered User b25bsaboy's Avatar
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    Quote Originally Posted by kantuckid View Post
    I have a nice tank to cleanup before I paint it. I can see no indication of rust inside. I am experienced with both POR-15 & KBS-similar if not same products & I but KBS from a local AP store-KOI- off their shelf so no shipping & handy. Like many, including Snowbum, I'm no fan of Kreem having had to dig it out of a tank. What is the red coating used as OEM? I am looking into RedKote and have emailed them with questions. The Caswell kits are more expensive than other routes. The RedKote is lots cheaper on ebay than form mfg.. Seems I read that the BMW/OEM is a good choice on nice tanks with little to no damage inside as easily redone. I searched some here & google but still have questions. What say the "experts"???
    Just finished doing my 89 R100RT as the PO did a horrible job of using POR-15. Before this starts as a flame, I have used POR-15 in the past and it is an excellent product as long as you follow the instructions and make sure it's 125% that it is dry internally.

    I had a local radiator shop take the tank, strip the POR-15 out, treat the bare metal and relined it twice with RedKote. The only way I would allow him to do it, is that they took great care and attention not to screw up the paint on the exterior of the tank. The primary reason I didn't do it myself is I have no way of disposing of the chemicals needed to strip out the POR-15.

    The end results is now I have a fuel tank that holds clean fuel and I do not have to worry about the internal part of the tank.
    Rick MacPherson
    Success is Not a Destination, But a Journey.
    Accredited Motorcycle Appraiser
    1968 BSA Starfire, 1976 BMW R75/6, 2009 R1200RT

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    I'm still waiting to hear from Red-Kote with questions I posed to them. I want to know what material these various tank liners are made from & how they differ.
    I know this sounds crude but in cleaning the Honda tank I just did: the Aqua Clean degreaser/cleaner & the Rust Blast(phos. acid) I used I simply walked out from my shop to my private gravel road and poured the stuff out in a strip in the center of the road. My "Fred Flintstone theory" is that when it rains the stuff will be so diluted it will cause no environmental issues based on the small amounts. With used lubricants I do take them to the AP's store or Walmart and dump them. When I tipped my Honda tank upside down to drain the unwanted extra paint/liner form the inside I placed it upside down on the shop trash can to become dump material as cured paint which there is plenty of in the landfill.
    "If I had my life to live over, I'd dare to make more mistakes next time...I'd relax,I'd limber up... I would take fewer things seriously...take more chances... take more trips...climb more mountains...swim more rivers...eat more ice cream." Jorge Luis Borges at age 85.

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    Rick

    How was the shop able to strip the insides without damaging the paint on the outside?

    Brian

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    Registered User b25bsaboy's Avatar
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    Quote Originally Posted by rozemab View Post
    Rick

    How was the shop able to strip the insides without damaging the paint on the outside?

    Brian
    Brian,

    Good question and I wish I could give you a magical answer. When I took the tank in, I was warned that the process may involve ruining the outer paint in spots. With that comment, my response was do the best you can and these people went above and beyond the paint was not damaged. Now with that being said, the PO painted the painted parts from the royal blue to a yellow and at the time I was going someday strip everything and start over again.

    The inside looks great, so much so it almost looks brand internally.
    Rick MacPherson
    Success is Not a Destination, But a Journey.
    Accredited Motorcycle Appraiser
    1968 BSA Starfire, 1976 BMW R75/6, 2009 R1200RT

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    On the Kreem web page they sell a "liquid masking" product that is to prevent damage when you re-line a tank. I have no experience with the product as always was relining a tank that needed repainted afterwards.
    "If I had my life to live over, I'd dare to make more mistakes next time...I'd relax,I'd limber up... I would take fewer things seriously...take more chances... take more trips...climb more mountains...swim more rivers...eat more ice cream." Jorge Luis Borges at age 85.

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