The SPI Flammability Tester is a precision research instrument built for R&D teams developing new vinyl film, flame retardant additives, and modified plastic film materials. Operating in accordance with CFR 16 Part 1611, it creates repeatable 45° flame exposure conditions that allow researchers to quantify the ignition speed and burning rate of different vinyl formulations. It enables direct comparison of how raw material ratios, flame retardant additives, film thickness, and
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