Evaluation of Encapsulants for Sprayed-On Asbestos-Containing Materials in Buildings

摘要

About 150 water-based liquid coatings sprayable by conventional airless paint spraying equipment were applied to two-inch thick sprayed mineral wool test matrices mounted overhead. After curing, specimens of the encapsulated test matrix were tested for fire resistance, flame spreading index, smoke and toxic gas release. Cohesive and adhesive strengths were measured as well as impact resistance. Thirteen materials met all of the criteria established for satisfactory performance and twenty one others met most of the criteria.