Polymeric plugging composition

A polymeric composition for restoring a previously formed spike hole in a wood railroad tie, comprising:

• a resin comprising:
• diethylene glycol in a concentration of about 10 wt % to about 15 wt %,
• 0.1 wt % to 1 wt % organometallic catalyst;
• about 6 wt % to about 8 wt % moisture control additive comprising molecular sieves;
• 30 wt % to 35 wt % filler;
• and
• about 40 wt % to about 45 wt % of a blend of polyols, the blend of polyols comprising at least one relatively lower molecular weight polyol and at least one relatively higher molecular weight polyol, and
• at least one isocyanate-containing compound,
• wherein the polymeric composition has a polyurethane index of from about 1.0 to about 1.3 and
• wherein the polymeric composition is substantially non-cellular.