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For those having issues with chromates here's a few tips.
Caswell's Chromates are not the best and sort of pricey.
Go on eBay and buy some sodium dichromate 10oz weight to a gallon distilled water. This next step is very important!! Add 2oz of battery acid to the dichromate
The battery acid helps the chromate bite into the part. Sodium dichromate will last forever when it gets weak simply add 2oz of battery acid. You can also make blue chromate but use nitric acid instead of sulphuric .
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