Cortec VpCI 649BD Liquid Additive Concentrate


VpCI-649 BD is a unique concentrated liquid formulation that protects ferrous and non-ferrous metals from corrosive solutions. In addition, this product is designed to provide long-term protection in fresh water, steam, and glycol closed loop systems. VpCI-649 BD also includes preservatives against biogrowth.


 VpCI-649 BD is effective as a replacement for nitrite/ chromate-based formulations.


VpCI-649 BD combines contact and volatile corrosion inhibitors along with anti-scalants in a non-toxic formulation that does not contain nitrites, phosphates, chromates, or heavy metals. Being environmentally safe, this product helps solve the problem of disposal particularly for large quantities of water.


Effective for a broad range of applications to stop aggressive corrosion in systems containing fresh water, glycol coolants, etc.


• Environmentally friendly and nitrite-free
• Low concentration effectiveness provides economical treatment
• Vapor phase action provides protection to areas that contact inhibitors cannot reach
• Contains an acrylic polymer to prevent scale formation
• Readily water-soluble liquid for easy application
• Multi-metal protection
• Effective in low dosages
• Does not contain free amine



• Inhibitor for closed loop cooling systems
• Fire extinguishing systems
• Inhibitor for hydrostatic testing of pipelines, casings, tanks, and valves
• Inhibitor for packer fluid applications
• Prevents water-bottom corrosion in oil storage tanks
• Alkanolamine sweeteners
• Pulp and paper process equipment
• Mines, mining, and earth moving equipment
• Inhibitor for lay-up application of cooling towers

Product Details

Product Code(s) Packing Size
VPCI-649BD-5 Cortec VpCI 649BD Liquid Additive Concentrate (5 gal. pail)
VPCI-649BD-55 Cortec VpCI 649BD Liquid Additive Concentrate (55 gal. drum)


Metals Protected Multi-Metals
Typical Properties  
Appearance Clear amber liquid
Density 9.3-9.8 lb/gal (1.12-1.18 kg/l)
Type Water-based
Non-volatile Content 48-55%
pH 9.3-9.8 (Neat)

Additional Information

For operational systems such as closed loop, start at 2,500-3,000 ppm (0.25-0.3%). Additional bio dispersant may need to be added depending on the system.

For seasonal lay-up application, (up to 6 months) use VpCI-649 BD at a concentration of 0.5% of inhibitor by volume (wet lay-up method)

Hydrotesting concentration varies from 0.5-2% by weight depending on application