The Q-Fog is a cyclic corrosion tester that provides moisture, salt spray and temperature control in the test sequence that you need.

The tests that can be done include:

• Salt spray prohesion.
• Conventional Cyclic corrosion testing.

Cyclic Corrosion

Cyclic corrosion tests are designed to degrade materials more realistically than conventional salt spray tests. Current research indicates that, with cyclic corrosion tests, the relative corrosion rates, structure and morphology are more similar to those seen outdoors.

Q-FOG Cyclic Corrosion Tester

Cyclic corrosion tests expose test specimens to a series of different environments in a repetitive cycle. Simple cycles like Prohesion may consist of cycling between salt fog and dry conditions. With the Q-Fog, one can cycle through all of the most significant corrosion environments in one chamber and the chamber control also has the facility for programming complex test cycles.

This series is available in the following models:

• 600 lit. Cyclic Corrosion Tester
• 1100 lit. Cyclic Corrosion Tester

Chamber Types

Q-Fog chambers are of two types i.e. Model SSP & Model CCT. Model SSP performs traditional salt spray and Prohesion tests. Model CCT performs salt spray, Prohesion, and most cyclic automotive tests.

Model SSP for Prohesion or Conventional Salt Spray

Numerous accelerated corrosion tests may be performed in Q-Fog model SSP, including Prohesion, ASTM B117, STM G85, BS 3900 F4 & F9, DIN 50.021 and ISO 9227.

Prohesion

This test uses fast cycling, rapid temperature changes, a low humidity dry-off cycle and a different corrosive solution to provide a more realistic test. Many researchers have found this test useful for industrial maintenance coatings.

Conventional Salt Spray

Continuous salt spray exposures are widely specified for testing components and coatings for corrosion resistance. Applications include plated and painted finishes; aerospace and military components; electrical and electronic systems.

Most of these are performed to particular specifications such as ASTM B117 (Salt Spray), ASTM B368(CASS Test) and BS 3900 F4. These tests are widely used for relative corrosion testing. They are typically run at an elevated temperature and do not incorporate a dry off cycle. They require heated, humidified air for the spray.

This series is available in the following models:

• SSP-600 - Salt Spray Prohesion Tester (Capacity 600 liters)
• SSP-1100 - Salt Spray Prohesion Tester (Capacity 1100 liters)

Corrosion Research and Cyclic Automotive Tests

The Q-Fog CCT has all the advantages of the model SSP, but adds the flexibility of including 100% humidity, another critical exposure condition, to your cyclic corrosion test.

Cyclic Automotive Tests

Today's automotive corrosion test methods typically call for exposing specimens to a repetitive cycle of salt spray, high humidity, low humidity dry-off, and ambient conditions. These test methods were originally developed as labor intensive manual procedures. The multi-functional Q-Fog Model CCT is designed to perform these cyclic tests automatically in a single chamber. Model CCT performs GM9540P/B and most Japanese CCT tests.

• Eliminates manual moving of test specimens from one chamber to another.
• Eliminates laborious spraying of test specimens.
• Eliminates variability in results from excessive specimen handling.
• CCT units come equipped with a viewing window in the lid and an internal light to allow easy monitoring of the test conditions.

Features

• Easy Programming

  The Q-Fog CCT is designed to cycle between four conditions: Fog, dry-Off, 100% Humidity and dwell. The conditions, time and temperature are controlled by a built-in microprocessor. Interactive software allows easy user programming and operation.

• Easy Maintenance

  The Q-Fog is equipped with a removable side panel for direct access to control components. All components are positioned to allow easy access for inspection and maintenance.

• Easy Sample Mounting

  The Q-Fog has a low belt line and an easy opening lid for easy sample mounting.

• Self-Diagnostics

  The Q-Fog controller includes complete self-diagnostics, including warning messages, routine service reminders and safety shut down.

All Plastic Construction

Q-Fog testers are made of solid, fiber reinforced plastic so as to make it free from corrosion, thus eliminating contamination of the test samples.

Precise Control of Fog Dispersion

The Q-Fog has superior fog dispersion compared to conventional systems, which cannot vary volume and distance independently. A variable speed peristaltic pump controls the amount of corrosive solution delivered to the spray atomizer, while the air pressure regulator controls the throw distance.

Internal Solution Reservoir

The Q-Fog has 120-liter reservoir, which has capacity for running tests for 7 days or more. The reservoir has integral salt filter and a built-in alarm to alert the operator when the solution is low.

Fast Cycling

Q-Fog testers can change temperatures exceptionally fast because of their unique internal chamber heater and their high volume cooling/dry-off blower.

Security

The Q-Fog has a locking key for disabling all the programming functions of the controller.

Safety

All electrical circuits have both conventional circuit breakers and a Ground Fault Interrupter. All heaters have both electronic and mechanical over-temperature protections. The cabinet is made from fire resistant resin.

Standards Specifying the Q-Fog:

ASTM, MIL, BS, GM, DIN, VG, ISO, MCT, SAE, VDA, CCT, NFX, DEF & BMW