There is no dimensional change in the size of the piece nor is there any reduction in the hardness of heat treated parts. Nickel Pentrate converts the surface to the Black Oxide finish without altering any of the original physical properties of the product.
Because the Black Oxide is an integral part of the metal surface, it cannot chip, crack peel, craze or rub off.
Pentrate Metal Processing, Inc. also provide Zinc Phosphate coating and Passivation of stainless steel.
Two production shifts per day provide an excellent and speedy turnover.
The shipping and receiving departments are open from 6:30 AM to 6:30 PM for your convenience.
Some of the products we process:
Permits issued by US-EPA, CAL-EPA, LAPD, LAFD, US-ATF, SCAQM, CIty of LA- Bureau of Sanitation & the State Board of Equalization.