Solvent based polyurethanes (one pack and two pack)
provide a harder finish, generally with limited flexibility but much greater abrasion
resistance. Consequently, this greatly reduces the level of routine maintenance. They
currently provide some of the hardest finishes available today with gloss levels from
matt through to a very high gloss. These finishes, as with the oil-based finishes, will
generally darken with time. The odour during application is very strong with these
products but dissipates as the finish dries. Due to their high strength and generally
limited flexibility, edge bonding of boards can occur.