Maxxon Corporation - 800-356-7887 - Underlayments and Sound Control Systems Maxxon is recognized worldwide as the pioneer and leader in floor technologies. Our expertise in the flooring industry is second to none. Gyp-Crete was Only the Beginning... Women's Business Enterprise (WBE) Certified Maxxon Corporation is recognized as the pioneer and leader in floor underlayment technologies. Specializing in fire and sound control, Maxxon is your source for gypsum and self-leveling floor underlayments, sound control mats, and moisture vapor barriers.