also showed higher elongation at break indicating significantly more total deformation before fracture the samples with combinations of repearl u2122 mf and polymeric binder showed increases in wet dry tensile ratio even with room temperature curing a desirable feature as curing temperatures could be reduced and or total binder could be reduced both the dry and wet tensile strengths of samples with both repearl u2122 mf and hycar u2122 26552 were increased over samples with either repearl u2122 mf alone or hycar u2122 26552 alone while not wishing to be bound by theory it is anticipated that the combination of a blocked or water dispersible polyisocyanate with a polymeric resin may result in a disproportionate amount of the polyisocyanate going to the fiber surfaces where it may compatibilize the fibers and polymer promoting more physical interaction resulting in stronger dry and wet tensiles without deblocking the polyisocyanate the blend of polyisocyanate and polymeric binder is much easier and cost effective to apply than a two step process where a binder or size is applied to the fibers possibly with de watering and drying and then a separate binder dispersed in an aqueous phase is applied the fibrous constructions of this disclosure can be used in a variety of applications known for fibrous constructions and nonwovens these include fabrics for a reinforcing a.