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Thanks for taking the time for this issue all!!! I'll look into these products in more detail and see what our processor thinks!!!

unclesyd, I've thought about what carryover from their degreaser (which is proprietary) but in general they do a pretty good job of rinsing. They control the iron and HCl concententration in the acid bath and I've never seen smut on the parts when visiting the operation. (I've actually only...

We have not sent samples out to an outside lab as of yet. We are seeing if we it's an easy fix first. I had felt that there was a possiblity that we weren't cleaning well the processor insists that they have been in control of cleaner concentrations but we have seen their operations and...

I work with a fastener manufacturer who has our hot dip galvanized product sent to an outside processor. Our processor has had issues with bare spots (see attached photo) and is having issues with finding the cause. I'm not particularly well versed in HDG defects and was looking for some help...

Thanks for all your help!! Great sources for plenty of trials in the near future.

I am working on reducing cycle time and temperatures for a variety of low and medium carbon steel coils for subsequent cold heading (bolt manufacturing). I always had the belief that inter-critical annealing is better because although it uses higher temperatures it allows for shorter cycle...