The adhesive compositions of the invention are especially useful in bonding replacement windows into structures without using a primer and allowing for fast drive away times. The adhesive is pumpable, sag resistant and bonds parts together at temperatures between about −10 C and about 80 C. The adhesive is comprised a linear and branched isocyanate functional polyether prepolymer wherein the linear and branched isocyanate functional polyether prepolymers are present in the composition at a particular weight ratios an isocyanate functional polyester prepolymer, a plasticizer and filler.