Rory Binnie got on the score sheet for Curtin but his early goal was cancelled out by a Dave Ashworth header in the second half.
Albert Bucchino and Eddie Tikoft led the way for the home side, while Ashworth was outstanding for the visitors.
Curtin dominated early proceedings and it took only 11 minutes for a pass from Tikoft to release Binnie, who beat the keeper with aplomb.
After this, Quinns began to find their feet and it was Nathan Smith who had a chance for the visitors but he headed wide 23 minutes in.
Curtin came out of the half-time break looking to build on its 1-0 lead and it took only three minutes for them to have the ball in the back of the net, only for the goal to be disallowed.
Curtin began to dominate, with Bucchino controlling things from the back line and Quinns breaking up play with its physical style.
After 60 minutes of play, Ashworth headed home with power from a set piece to restore parity and set up an exciting finish to the match.
It was frantic from both teams as they chased an elusive winner without luck.
As the game headed into added time, Quinns were denied a late winner as Sekhon dove full length to his left.