2" Aluminum Survey Markers for Rebar

$25.00

2" Aluminum Survey Markers for Rebar with "Water Solutions Pvt" branding and center mark stamped for precise alignment of all instruments.

Special features  survey markers for rebar include:

  • SureGrip™ plastic insulator locks cap on tight and helps prevent dissimilar metal corrosion
  • Will not wobble when driven onto rebar

The feature the SureGrip™ plastic insulator that locks the cap tight on to the rebar or pipe and helps prevent dissimilar metal corrosion. They feature a deep hex socket that won't "wobble" when tapped on to the rebar.

A good survey marker for rebar or pipe must virtually eliminate dissimilar metal corrosion. What typically happens is the survey cap loosens over a short period of time.This confirms metallurgical theory. Aluminum is less "noble" than steel and an electrical current will actually flow from the aluminum (+) to the steel (-). Corrosion will occur in the anode (+) area of the battery like combination of metals in the presence of moisture (air or soil acting like an electrolyte).

Berntsen originated the SureGrip™ insulator/wedge which effectively isolates the survey cap from the steel and de-forms around the ribs of the rebar. The hex shape fills with the deformed plastic material and the survey cap is locked on with a super tight compression fit. Great force is required to remove the cap.

These markers are manufactured by Berntsen International Inc.