The mats can also contain pigments, dyes, flame retardants, and other additives so long as they do not significantly reduce the ability of {HEAD ~ the mat} to bond to {TAIL ~ a foam surface} 
to bond to
The mats can also contain pigments , dyes , flame retardants , and other additives so long as they do not significantly reduce the ability of { HEAD ~ the mat } to bond to { TAIL ~ a foam surface }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL