Fire-retardant belting

CIM Bulletin, Vol. 75, No. 844, 1982

DOUGLAS H. SILVEY, Manager of Conveyor Belt Compounding, Industrial Products Division - Engineered Products Group, BFGoodrich Company, Akron, Ohio

The historical transformations in fire-resistant conveyor belt compositions in the past 20 years have been influenced by factors of material cost, changing flame and burn test requirements, material replacements, adhesion and oil resistance considerations, increased responsibility and legal liability. Specifically, this has resulted in a swing from neoprene-cotton belts to S.B.R. blends and synthetic fibre carcasses, and tighter quality control and documentation of test data.Flame dynamics are discussed and the function and performance of the multiple types of flame-resistant additives in the flame front are presented. Specific flame and burn test requirements are described. The belt manufacturers' requirements and criteria in selecting the types of flame-resistant additives are presented.The author will describe the composition of the types of flame-resistant compounds used in a practical production, the belts that are available on today's market and future developments in requirements that may further transform the composition of fire-resistant belts.