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Test Data & Certificates
Transmission Loss is a measurement of the reduction in noise level resulting from blocked passage through an obstruction at a given frequency. Values are expressed in decibels. The higher the Transmission Loss measurement, the more effective the material is at blocking the sound.
Acoustic Loss Factor (Damping Loss Factor) is a measure of a material's ability to reduce structural borne sound. It represents how much vibration related energy is absorbed by the material at a given temperature. Based on a linear scale of 0 - 1, with 0 being an untreated steel panel and 1 being a theoretically perfectly damped panel (vibration-less). A higher ALF means that the material is more effective at reducing structural borne sound.
Measuring Sound Loss in dB (Lab Test Method - ASTM E756) - The test was originally performed by an independent acoustic lab for the purpose of satisfying requirements for use in GM, Ford, Honda and Mack Truck assembly plants. The test was also performed for the purpose of demonstrating sound loss figures for different frequencies and was performed on steel and fibreglass sheets that were 20" x 20" (50 x 50 cm) in size , 1mm thick and with a 1mm thick coating of Sound Control, Sound Control Premium or Sound Control Marine.
ISO 9001 & QS 9000 Certification - Total Coat Global manufactures all of its products observing the most stringent of standards of quality control.
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