Coolants rhymes with:
assailant's, assailants, equivalents, inhalants, propellants, repellents, sealants, stimulants, succulents, talents
Coolants sounds like:
calamities, calamitous, calmat's, claimants, claimants', clematis, clemente's, clementes, clements, clementz, client's, clients, clients', climates, climatic, clonts, clontz, culminates