When necessary, the viscosity of HumiSeal® coatings may be adjusted for application purposes, using a compatible thinner from the table of Specialty Solvent Based Thinners. HumiSeal® Thinners are blends of solvents formulated to maintain and preserve the original system benefits. These HumiSeal® Thinners comply with North American air quality regulations and the RoHS Directive 2002/95/EC.