VpCI®-649 BD/VpCI®-649 BD MF

VpCI®-649 BD combines contact and volatile corrosion inhibitors, along with anti-scalant and an organic dispersing agent. The product does not contain nitrite, phosphate, or chromate.
VpCI®-649 BD is available in a molybdate-free version: VpCI®- 649 BD MF.

PACKAGING & STORAGE

VpCI®-649 BD is available in 5 gallon (19 liter) pails, 55 gallon (208 liter) drums, liquid totes, and bulk.
To ensure best product performance, store in original packaging, indoors, and out of direct sunlight at 40-100 oF (4-38 oC).
Shelf life: 2 years.

 

FEATURES

• Effective for a broad range of applications to stop aggressive corrosion in systems containing fresh water or glycol coolants
• Low concentration effectiveness provides economical treatment
• Vapor phase action provides protection to areas that contact inhibitor cannot reach
• Protects steel, copper, galvanized steel, and aluminum
• Contains an acrylic polymer to prevent scale formation
• VpCI®-649 BD contains molybdate tracer
• VpCI®-649 BD MF contains a PTSA tracer
• Contains organic dispersing agent

 

TYPICAL PROPERTIES

 

Appearance	Yellow to Amber Liquid
Density	9.3-9.8 lb/gal (1.12-1.18 kg/L)
Type	Water-Based
pH	9.1-9.6 (Neat)
Freeze Point	1 to 10 °F (-17 to -12 °C)

 

APPLICATIONS

• Closed loop cooling systems
• Hydrostatic testing of pressurized vessels and pipelines
• Cooling system lay-up
• Packer fluid additive
• Prevents water-bottom corrosion in oil storage tanks
• Fire extinguishing system dry layup

DOSAGE

Protection Length	Volume VpCI®-649 BD per 100 gal	Volume VpCI®-649 BD per 100 L	Dosage (%)	ppm
During Testing & Operational Protection	0.3 gallons (38 ounces)	300 mL	0.3	3000
Up to 6 months	0.5 gallons (64 ounces)	500 mL	0.5	5000
6-12 months	1   gallon	1 L	1	10.000
12-24 months	1.5 gallons	1,5 L	1.5	15.000

 

*These are general dosing guidelines and may not be suitable for every application. Please contact Cortec® Technical Service for specific dosage information.

 

Detection: Concentration of VpCI®-649 BD can be monitored via molybdate tracer, pH, or refractometer. Concentration of VpCI®-649 BD MF can be monitored via pH, refractometry, or PTSA. Contact Cortec® Technical Service for more information on monitoring product concentration.

 

STANDARD TEST METHODS

 

Method	Description	Results
ASTM G 31	Immersion Corrosion Testing	No corrosion on carbon steel, copper galvanized, aluminum (0.3% wt in tap water)

 

CONSIDERATIONS

The PTSA tracer used in VpCI®-649 BD MF degrades with exposure to light. Solutions of VpCI®-649 BD MF must be sheltered from light to retain PTSA tracer. If PTSA degrades,
the concentration can still be monitored via a titration. Contact DEYAP Technical Service for more information.