Asphalt fluxes with lower flash points and softening points tend to have higher
emissions of organics because these fluxes generally have been less severely cracked and contain
more low-boiling fractions. Many of these light ends can be emitted during blowing. Limiting
the minimum softening and flash points of asphalt flux should reduce the amount of
POM-containing fumes generated during blowing because less blowing is required to produce a
saturant or coating asphalt. Saturant and coating asphalts with high softening points should
reduce POM emissions from felt saturation and coating operations. However, producing the