t’pot™ Tensile Pull Off Tester

The t’pot™ Tensile Pull Off Test covers a variety of pull test procedures for evaluating the tensile strength of a substrate material or the bond strength of a repair or overlay material.

t’pot™Tensile Pull Off Tester

Polyshield Equipment & Pump FoundationsThe t’pot™ Tensile Pull Off Tester covers a variety of pull test procedures for evaluating the tensile strength of a substrate material or the bond strength of a repair or overlay material. Pull off testings are used on many different substrates and repair materials. The t’pot™ is simple to use, with a self-aligning base that can be applied on various surfaces. Always refer to the specified test method or details on dolly size, load rate and test time.

t'potTM Brochure


t'potTM Features

The t'potTM is the moswt affordable pull off testr capable of applying a uniform tensile force at a constant rate. 

  • Durable Handheld test unit for field and lab
  • Most affordable pull tester capable of applying a uniform tensile force at constant rate
  • Easy to read dial gauge with max. hand to record max. force
  • Self-aligning base to apply loads perpendicular to substrate
  • Variable dolly size: 2 inch or 3 inch
  • Removable magnetic hand crank
  • Safety wrist strap connector
  • Easy to interpret stroke indication pin



Download our data sheet

Data Sheet


The stroke indication pin species the applied tension on the dolly. The pin moves upwards while the hand crank is turned in the + direction. For each pull off test reset the stroke indication pin to 0 or start position by turning in the - direction.


Load Rate Chart

The load rate charts below show an example of a loading rater and time to maximum force for 200 psi failure, based on ICRI loading recommendation.

Specialized Engineering Support 


Rich Rogers

t'potTM Team Leader
Gunther Berg

STRUCTURAL TECHNOLOGIES’ Research and Development Team.


Operating Instructions

Polyshield Equipment Foundations

Test Location & Coring

Clean the surface of the test location. Remove any contaminants and debris. Core into the surface using an appropriate sized coring bit. Coring ensures the core sample is isolated from the surrounding substrate. Refer to standard test methods for specific drill depth for concrete substrates, overlay and repair surfaces.

Attach loading fixuture (Dolly)

The dolly must have a sandblasted or roughened surface to ensure good adhesion. The dolly contains a threaded hole in the center that allows for attachment of the t’pot™. Apply adhesive epoxy on the at surface of the dolly and adhere to substrate. Adhesive epoxy is supplied in your t’pot™ case.

Attach t'potTM

The adhesive bonding the dolly to the substrate must be fully cured before attaching the t’pot™. Screw the all-thread rod on the bottom of the t’pot™ into the hole of the dolly.

Apply Load

Position the t’pot™ so the gauge can be read easily. Ensure that the t’pot™ is in start position by turning the hand crank towards yourself (- direction). Set the red max. hand on the gauge to zero. Hold the t’pot™ firmly and turn the hand crank away from yourself (+ direction). Continue uniformly and slowly, turning 2 rotations every 10 seconds until either a failure or a maximum reading is registered. Do not proceed further. Check the reading of the gauge and record the force (lbf). When the measurement has been recorded, reset the stroke indicator pin to zero by unwinding the hand crank towards yourself (- direction).


Download Operating Instructions










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