Tod Kean, the founder of Bonded Logic. Since its start in 1994, Bonded Logic has become the leading manufacturer of natural fiber insulation in the country by creating this insulation out of recycled denim and other natural fabrics. Kean discusses his goals as a member of the Go Green movement and how everyone can benefit from natural products as a replacement for standard practices. Those old blue jeans you might have lying around could help houses and other buildings across the country become greener, safer and more efficient structures simply by insulating with natural fiber products like those manufactured by Bonded Logic. Tod Kean, the founder of Bonded Logic. Since its start in 1994, Bonded Logic has become the leading manufacturer of natural fiber insulation in the country by creating this insulation out of recycled denim and other natural fabrics. Kean discusses his goals as a member of the Go Green movement and how everyone can benefit from natural products as a replacement for standard practices. Those old blue jeans you might have lying around could help houses and other buildings across the country become greener, safer and more efficient structures simply by insulating with natural fiber products like those manufactured by Bonded Logic.