From our laboratories in Swindon close to Honda Manufacturing UK, we offer a comprehensive range of testing procedures and are committed to providing a competitive yet high quality UKAS accredited service not only to establish data, but to assist in research and development programmes where required.
AWL are pleased to be exporting our services to overseas companies in France, Spain, Germany, Italy, Turkey and the Far East.
AWL can provide our clients with the confidence they need to make informed materials performance decisions.
UV weathering can cause damage to many coatings, plastics, fabrics and other materials. It can cause discolouration, fading, brittleness, cracking, peeling, reduce tensile strength and other mechanical properties.
Due to all the variables associated with real time weathering direct correlation is not possible as UV energy absorption levels and weather patterns, that influence ranges of temperature, humidity, wind and rainfall are changing year on year around the globe within temperate, tropical and arid regions. It is our view that accelerated weathering correlation statements should be taken with extreme caution and are best used as guidance for test duration and costing advice.
However, we can provide guidance here and have the capability to perform a wide range of accelerated weathering test methods to help establish a performance standard to provide our clients with greater confidence their product will withstand the elements within acceptable limits for its designed service life.
Our corrosion testing facilities include cyclic corrosion, neutral and acidified salt spray chambers to establish or validate the performance of a vast range of materials and barrier coatings on metals or polymeric materials.
For filiform corrosion resistance climatic chambers are used in conjunction with salt spray chambers. Filiform corrosion is often seen in stone chipped or kerb damaged alloy wheels and has the appearance of ‘worm like’ trails under the paint system. To measure the performance against filiform corrosion the test cycle must include a stable medium to high relative humidity set point otherwise the corrosion reaction will not form filiform trails.
The lead in corrosion testing, particularly cyclic has been driven by the automotive sector in recent years and AWL Ltd are in constant demand for this service from a wide variety of suppliers of parts for car manufacturers including painters, platers and electro-coating plants for sub-frame, suspension and other underbody parts.
Number Plate Testing
Our number plate testing is based around the current British Standard BS AU 145d and the new version BS AU 145e which has additional requirements for ANPR (Automatic Number Plate Recognition) which is due out soon.
Tests include photometric, colorimetric and retro-reflection properties. UV aging from sunlight and weathering. Resistance to bending, impact and salt spray. Thermal resistance to determine longitudinal distortion, reflective sheeting shrinkage, blistering, discolouration and delamination during extremes of temperature between +65 and -40 degrees centigrade.
There are additional requirements for linear abrasion and colorimetric measurements within the near infra red spectrum for ANPR in the forthcoming BS AU 145e standard.