Corrosion/Weathering | Gryke Scientific

TQC SHEEN

CORROSION / WEATHERING

Corrosion and weathering are both major contributors to overall costs. Globally around 5 tonnes of steel are lost every second due to corrosion. Causing huge global costs and a significant influence on environmental conditions. Around 30% of this staggering €17.5 billion price tag can be prevented by basic corrosion testing.

C&W Specialist Salt

C&W Specialist Salt is Sodium Chloride which quality complies to the stringent ASTM B117 standard. The Sodium Chloride’s grain and purity is specially formulated for saline spray (fog) for corrosion testing with C&W Salt Spray and CCT cabinets.
Standards: ASTM B117, ISO 9227
C&W Specialist Salt is Sodium Chloride which quality complies to the stringent ASTM B117 standard. The Sodium Chloride’s grain and purity is specially formulated for saline spray (fog) for corrosion testing with C&W Salt Spray and CCT cabinets. Obviously C&W Specialist Salt also creates the ideal saline spray for cabinets from other brands.

Guaranteed quality and fully traceable
Many suppliers offer salt to a high laboratory grade. Analysis of this salt proves that the level of contaminants like copper, fluoride, iodine, bromide, or anti-caking agent is too high compared to the ASTM B117 Standard. Some suppliers do not even test for these substances. C&W Specialist Salt comes with a full Certificate of Analysis stating all relevant contaminants and a Certificate of Conformity with batch numbers and dates.
Clean
To avoid the formation of lumps without using contaminating anti-caking agents C&W Specialist Salt has a custom selected coarse grain. This coarse grain also prevents excess dust when handling the salt. C&W Specialist Salt will keep your laboratory clean, without a reduction in solubility.
Conveniently Packed
The salt is conveniently and safely packed in 25 kg or 5 kg containers keeping the salt free from moisture and contamination. No weighing needed. Just add one 5 kg bucket to a 100 litre reservoir and add water until the 100 litre level is reached. This is the ideal mixture for salt spray testing. The 5 kg buckets can only be ordered in sets of 4.
Both the handy 5 kg buckets and the economic 25 kg buckets are fitted with a handle for optimal lifting.

Cyclic Corrosion Cabinets

C&W Cyclic Corrosion Test Chambers (CCT) are designed to deliver the precise environmental test conditions demanded by modern industry. They are reliable, easy to operate and have a robust construction.
Standards: ASTM B117, BS 3900-F12, CCT I, II, IV, DIN 50021, Ford EU B 153-2, GM 9540 P, ISO 7253, JIS K 5622-7, Nissan M0007, Swaat & Mastmaasis Honda 5100Z, Toyota TSH 1555G, Unichem 692 & 741, VDA 624-415, VW-1210-C
C&W Cyclic Corrosion Test Chambers (CCT) are designed to deliver the precise environmental test conditions demanded by modern industry. Their reliability, ease of operation and robust construction has led to their use worldwide in all major sectors from automotive manufacture, to the paint, plastics, packaging, electronics, aerospace, military and offshore industries.
Pioneering designs have made C&W the UK leader in the manufacture of accelerated corrosion and environmental test cabinets.

Robust and reliable
CCT cabinets, with their clean, functional design are manufactured from high quality materials selected specifically for this application. The construction is corrosion resistant throughout. Specially formulated retardant glass reinforced polyester (GRP) with high chemical and temperature tolerance. The cabinets have a wet or dry seal option and an ergonomically designed control panel. Apex lids are available in a range of composite materials depending on test requirements, and supported by gas springs. Transportation in areas of restricted access is made easier due to the compact design aided by removable lids and base frames.
The robustness and reliability of the C&W Cyclic Corrosion Test Cabinets go hand in hand with a full range of environmental test conditions, optimum operation and precise control.

Operating modes
The C&W CCT cabinet provides a full range of environmental test conditions including:

- Conventional salt spray/ salt fog
- Dwell and ramp functions
- High humidity, 98% RH, at constant or cyclic temperature
- Air purge cycles
- Forced air drying
- Dry heat – ambient to 70°C
- Ambient to 55°C +/- 1 °C

With its user-friendly programme logic controller, any one or any combination of these conditions can be selected, programmed in any sequence and for any pre-set time. CCT cabinets can also be used in single mode as the following: Cyclic Prohesion® Cabinet, CASS Cabinet, Conventional Salt Spray/ Salt Fog Cabinet, Humidity Cabinet.
Optimum Operation

Effective corrosion testing requires rapid transition between test regimes with minimum fluctuation. In C&W’s CCT cabinets these criteria are assured by many features like a dry/moist air facility and protection against overheating and low water. The sophisticated atomizer ensures even distribution of salt spray and precise collection rates throughout the chamber. To prevent excessive growth of algae the filling and sterilization entry is easily accessible. The CCT cabinets are provided with a fully adjustable water temperature control with digital display, and optionally a low level alarm system is available.

Precise control

C&W cabinets are designed for ease of operation. All units incorporate a microprocessor controller with the capacity to hold up to 7 programmes with unlimited event entries. Rapid programme selection and the facility to create new programmes to meet specific needs, puts the operator in total control. The Programme run cycle counter has an ‘End of test’ facility. The ability to monitor cycles, events and functions is made possible by the comprehensive package of control and display features. Salt solution flow control is very accurate via a variable speed, heavy duty peristaltic pump and flow meter. This ensures precise collection rates and eliminates atomiser blockage.

Design benefits

All C&W cabinets with their clean functional design are manufactured from high quality materials selected specifically for this application. They are made out of specially formulated fire retardant glass reinforced polyester (GRP) with high chemical and temperature tolerance. The apex lids are formed in a range of composite materials depending on test requirements and supported by gas springs to ensure smooth operation. They have a wet or dry seal option. The construction of the CCT cabinets is corrosion resistant throughout. Transportation of the CCT Cabinets in areas of restricted access is made easier due to the compact design aided by wheels and removable lids.

Scope of supply
Each Cyclic Corrosion Cabinet comes with:
1x CW4088 Installation kit
1x CW4052 Annual kit
1x CW4035 Set of Collection Vessel (2 funnel, 2 cylinder)
1x 5kg Salt + Certificate
1x CW5882 Adapter for pipe
1x VF7101 Corrosion Handbook
Optional Accessories
Many optional accessories are available. Please contact us for more information.

Humidity Cabinets

C&W humidity cabinets are designed to reproduce test conditions of high humidity at constant or cycling temperatures demanded by modern industry. The cabinets are reliable, easy to operate and have a robust construction.
Standards: ASTM D2247, ASTM D4585, BS 3900-F15, BS 3900-F2, BS 3900-F9, DIN 50517, EN 1096, INS 30.16.08, ISO 11503, ISO 6270
C&W Humidity Cabinets are designed to reproduce test conditions of high humidity at constant or cycling temperatures. The test chamber environment is created by water being heated to precise temperatures to generate water vapour. The water vapour saturates the air in the test area which is constantly being circulated by the internal fan to ensure even distribution. The test panels or components are exposed to the moisture enriched air, allowing the water to be absorbed by the coating. Oxidising with the base metal resulting in either blistering of the coating or the formation of red rust or oxidisation on a non–ferrous metal.

Operating Modes
C&W Humidity Cabinets provide a wide range of environmental test conditions:

Any constant temperature between 30°C and 80°C. +/- 1°C accuracy
Cyclic temperatures, step –up / step-down over time.
Constant high humidity – 95% to 100% saturated.
Precise Control
C&W Humidity Cabinets are designed for ease of operation. Their comprehensive package of control and display features ensures that all cycles, events and functions can be closely monitored:
Microprocessor controller with seven-programme memory.
Full digital display of test conditions. Low water sensor protection.
Air circulation by internal fan ensures uniform test conditions.
Time cycle facility for precise test duration control.
NTC temperature sensor for precise control.
Over temperature safety cut out system.
Design Benefits
All C&W cabinets with their clean functional design are manufactured from high quality materials selected specifically for this application. They are made out of specially formulated fire retardant glass reinforced polyester (GRP) with high chemical, water and temperature tolerance. The Wet seal apex roof is insulated or transparent. The construction of the CCT cabinets is corrosion resistant throughout. The control panel has an ergonomic design. Standard panel racks are included, options are available. Transportation of the Humidity Cabinets in areas of restricted access is made easier due to the compact design aided by wheels and removable lids.
Humidity Function
C&W cabinets come in a wide range of types, Humidity Cabinets are dedicated cabinets only allowing humidity testing. You can also obtain a standard corrosion test with humidity function added. Cabinets with salt spray / humidity combined, and salt spray / prohesion / humidity combined are available.

This test is used to reproduce the exposure to naturally occurring condensation or by cycling the temperature, in the cabinet dew formation can be produced.Pioneering designs have made C&W the UK leader in the manufacture of accelerated corrosion and environmental test cabinets.

Scope of supply
Each Humidity Cabinet comes with:
1x CW4088 Installation kit
1x CW4035 Set of Collection Vessel (2 funnel, 2 cylinder)
1x CW5882 Adapter for pipe
1x VF7101 Corrosion Handbook
Optional Accessories
Many optional accessories are available. Please contact us for more information.

Humidity Conditioning Cabinets

C&W Humidity Conditioning Cabinets deliver the precise environmental testing requirements demanded by modern industry. The test cabinets are reliable, easy to operate and have a robust construction.
Standards: ASTM B1117, BS 3900-F12, DIN 50021, Ford EU B 153-2, GM 9540 P, ISO 7253, JIS K 5622-7, Nissan M0007, Swaat & Mastmaasis Honda 5100Z, Toyota TSH 1555G, Unichem 692 & 741, VDA 624-415, VW-1210-C

C&W Humidity Conditioning Cabinets function as variable humidity, temperature humidity, environmental, climatic or conditioning cabinets. Their reliability, ease of operation and robust construction has led to their use worldwide in all major sectors of industry. Temperature and humidity testing and product conditioning is of vital importance to the research chemist, development engineer and quality assurance manager to ensure the product is researched, developed and manufactured to a standard guaranteed to survive the environment for which it is designed.
C&W cabinets are designed to meet the environmental testing requirements of the paint, plastic, packaging, paper, board, electronic, automotive, aerospace, military, textile and telecommunications industries. Their pioneering designs have made C&W the UK leader in the manufacture of accelerated corrosion and environmental test cabinets.

Standard Features
C&W Humidity Conditioning Cabinets come standard with many features. To ease programme control the microprocessor controller has the capacity to store up to seven different test methods. A variable speed peristaltic pump delivers de-ionised water to the humidification system via a flowmeter. Condenser unit housing, air heater, cooling/conditioning coil and humidification system is free standing and fan assisted. Each Humidity Conditioning Cabinet is supplied with a NTC temperature sensor and independent capacitive RH sensor with micro membrane filter. Air injection is automatically conditioned by forced air circulation. The independent water reservoir supply tank comes with a low water audible alarm.
Design Features
C&W cabinets have a clean functional design with low maintenance, yet high quality. The internal volume is maximum used and has a top loading access. C&W Humidity Conditioning cabinets are very well insulated, ensuring a fast recovery time and fast conditioning. A vapour generator provides direct humidification.
Transportation of the Humidity Conditioning Cabinets in areas of restricted access is made easier due to the compact design aided by wheels and removable lids.
Scope of supply
Each Humidity Conditioning Cabinet comes with:
1x CW4088 Installation kit
1x CW4035 Set of Collection Vessel (2 funnel, 2 cylinder)
1x CW5882 Adapter for pipe
1x VF7101 Corrosion Handbook
Optional AccessoriesMany optional accessories are available. Please contact us for more information.

Salt Spray Cabinets

C&W Salt Spray Cabinets to test both components and coated test panels across the whole spectrum of industry. The test cabinets are reliable, easy to operate and have a robust construction.
Standards: ASTM B117, ASTM B368, ASTM D5894, BS 3900-F12, BS 3900-F18, BS 3900-F4, BS 3900-Part2:1 ka, BS 5466, BS7479, CT UOI OIA, DIN 50021, EN 60068.2-52 kb, ISO 11997, ISO 20340, ISO 3768, ISO 7253, ISO 9227, JASCO M 6009, JIS H 8502, JIS Z 2371, NFA 91-101, NFX 41-002, PNX 14-002, SAE J2334, VG 95210/2, VG 95332/4

The C&W salt spray range delivers the precise environmental test conditions demanded by industry today. Through their reliability, ease of operation and robust construction, C&W salt spray cabinets have gained worldwide acceptance with applications in all major sectors from automotive manufacture to the paint, surface and coatings, chemical, electronics, aerospace, military and offshore industries. C&W cabinets are widely used to test both components and coated test panels. The design ensures that they meet or exceed the requirements laid down in all major national, international and corporate standards.Pioneering designs have made C&W the UK leader in the manufacture of accelerated corrosion and environmental test cabinets.

Optimum operation
Effective corrosion testing requires close operational control and total accuracy. In C&W’s salt spray cabinets these criteria are assured by many features. The easy access for filling and sterilisation prevents excessive growth of algae. A mobile external salt Solution reservoir with integral filter systems and 114 litre capacity gives up to 14 days continuous operation depending on model size. The integrated air regulator and gauge control and monitor the air pressure required for precise salt spray distribution, whereas the flowmeter accurately monitors salt solution flow. Sample Racks are supplied as standard to accept panels or suspend samples. Optionally a low level alarm system is available.
Precise control
C&W Salt Spray Cabinets have many control features integrated. Temperature control (Range ambient to 55˚C, +/- 1˚C, by N.T.C. Sensor) is performed by means of a Soft touch” waterproof membrane keypad control panel with user friendly tactile keypads giving full digital test display. Humidity is controlled by an automatic self-filling humidifier tower for compressed air saturation and heating with digital display of temperature set point (range ambient to 65˚C, +/-1˚C). This tower includes an incoloy heater, over temperature protection and air diffusers to create bubble formation of air within the tower to produce totally saturated and heated air. With low water level protection. To ease programme control the microprocessor controller has the capacity to store up to seven different test programmes. The cycle-run and cycle-left counter has an end-of-test facility. Salt spray / dry cycles are fully adjustable from 0 to 9999 minutes. For spray/dry/air purge cycles the cabinets have an intermittent test facility. The integrated air purge removes corrosive air borne salt prior to sample inspection. This can be done manually or can be included in a program to work automatically .
Design benefits
All C&W cabinets with their clean functional design are manufactured from high quality materials selected specifically for this application. They are made out of specially formulated fire retardant glass reinforced polyester (GRP) with high chemical and temperature tolerance. The apex lids are formed in a range of composite materials depending on test requirements and supported by gas springs to ensure smooth operation and an effective seal when closed to ensure full insulation. Over-temperature protection is factory set and the control panel is ergonomically designed. Transportation in areas of restricted access is made easier due to the compact design aided by wheels and removable lids.
Cabinet variants
C&W corrosion cabinets come in a wide range of types, including conventional salt spray cabinets, cyclic prohesion cabinets, CASS cabinets, combination salt spray/humidity cabinets and combination salt spray/ prohesion-humidity cabinets.
Scope of supply
Each Corrosion Cabinet comes with:
1x CW4088 Installation kit
1x CW4052 Annual kit
1x CW4035 Set of Collection Vessel (2 funnel, 2 cylinder)
1x 5kg Salt + Certificate
1x CW5882 Adapter for pipe
1x VF7101 Corrosion Handbook
Optional Accessories
Many optional accessories are available. Please contact us for more information.

Test Panels

TQC Panels are available in a large variety of dimensions, materials and thicknesses.
Use of TQC Test panels enhances reproducibility of physical and chemical tests.
Each panel is equipped with a hole for hanging and handling.
Not only standard test panels are available. Special dimensions to customers specifications are possible as well. Look up the brochure for more information about the assortment.

Study Book Corrosion Handbook

This study book about corrosion testing gives trained and untrained users further insight in the required techniques for corrosion testing. Corrosion principles just as possible interferences in and around the cabinet are discussed. Interpretations and reporting are also tackled.
Efficiently operating and using a corrosion test cabinet leads to great savings. Unnecessary waiting time from sample transport to external laboratories is no longer an issue. Correct assessment of the results is also one of the discussed issues.

Knock-Out Test Panels

Our new TQC Knock-out test panels are designed to minimize the build-up of paint on the panel edges because of the knock-out frames. Because of the 4 mm holes in the knock-out frames it is easy to hang the panels horizontally or vertically without leaving any marks.
All our knock-out panels are provided with a protective PE film on the prepared side (prepared side recognizable by its round edge in the right upper corner) which serves as protection against scratches, corrosion and finger prints. The film is easy removable after the panels are hanged.
The TQC knock-out panels meet the requirements for Qualicoat, GSB, QIB and ISO standards.
The panels are standard delivered in 2, 4 or 8 pcs per frame and packed in a resealable carton box.
Other shapes and sizes available upon request.

Machu Scratching Tool

Standards: ISO 17872
TQC Machu Scratching Tool to perform a Machu test (corrosion test) with. Each tool is provided with a 1mm width cutter to cut the coating down to the metal, complying with ISO 17872.
Two models are available:
The TQC Machu Scratching Tool Basic is based on the CC2000 model. with a self positioning knife bracket to expose the substrate with a perpendicular cut through the coating.
The TQC Machu Scratching Tool Professional is based on the CC3000 model with adjustable cutting depth and two ball bearings to guide the cut. This guarantees reproducible results.
Mandatory test in Qualicoat and QIB accredited laboratories.

Solarbox Accelerated Weathering Cabinet

Test cabinets for the accelerated testing of products such as coatings, plastics, packaging etc. on wear and tear caused by light and/or temperature.
A powerful Xenon light source produces radiation on different wavelengths and, if required, at increased temperatures. The flexible microprocessor-based control enables automatic test cycles.

Machu Test Bath

According to Qualicoat specifications.
The Machu test is an accelerated corrosion test (immersion test) on test panels according to Qualicoat specifications. The Machu test gives you the opportunity to evaluate the weathering performance of powder coating systems, pigments fading, film haziness & loss of gloss and film.
24 hours test duration is equivalent to 500 hours in a salt spray chamber.
48 hours test duration is equivalent to 1.000 hours in a salt spray chamber.
The test is made in a warm and acidic test solution at a temperature of 37 °C. The test solution consists of natrium chloride, acetic acid and hydrogen peroxide. After a test period of 24 h the test solution has to be renewed and the pH value corrected by using hydrogen peroxide.
Because of the aggressive test solution a smaller plastic container is integrated to place the test panels inside.
The test panels need to be scratched crosswise with a 1mm cutting tool before placing them in the warm moisture test chamber. The fluid content, temperature and remain time are specified.

TQC SHEEN