Re: 1934 headlight mount and radiator

Posted by Owen_Dyneto On 2023/4/27 16:45:27

Oxalic acid was the active component in duPont's Heavy Duty Cooling System Cleaner which is to my knowledge NLA. It's one of a family of chemical compounds with an unique affinity for certain iron compounds such as are found in rust and hard water scale. If you're curious, Google "chelate" or "chelation".

To recore these early radiators can be very expensive and I'm not willing to take risks with mine. I've never used CLR or the other material you mentioned in a radiator; I'd only use materials which are or were previously available specifically for that purpose.