ASTM C633 Thermal Spray Coating Adhesion and Cohesion Testing
ASTM C633 is the test method for the adhesion or cohesion strength of thermal spray coatings. To match this to your program, talk with our team.
What ASTM C633 Covers
It measures the bond of a thermal spray coating to its substrate, or the cohesion within the coating, by applying tensile force normal to the surface.
How the Test Is Run
A coated specimen is bonded between loading fixtures and pulled in tension until the coating separates, and the strength is calculated from the failure load and area.
Why It Matters
Coating adhesion governs thermal-spray durability in service; tensile fixtures aligned normal to the coating and a suitable adhesive are essential.
Reading the Designation
Cited as ASTM C633 with its edition year. Confirm the edition and specimen or fixture requirements before finalizing setup. To configure a testing setup, request a quote.
TensileMill CNC products for ASTM C633
Our specimen-preparation systems and testing equipment compatible with ASTM C633.

TensileMill CNC MICRO – Precision Flat Tensile & Impact Micro Machine
MICRO – Precision Flat Tensile & Impact Sample Preparation

TensileTurn CNC – Industrial Upgrade – Round Tensile Sample Preparation Machine
Industrial Upgrade – Round Tensile Sample Preparation

Electro Mechanical Universal Testing System 5 kN / 50 kN with Precision Load Cell
Electro-Mechanical UTM · 5 kN / 50 kN with Precision Load Cell

TensileTurn CNC MINI – Compact Round Tensile Specimen Preparation Machine
MINI – Compact Round Tensile Specimen Preparation
Set up ASTM C633 testing with TensileMill CNC
Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.