HI SHARON, TO COVER THE EVER WIDENING GAP ON YOUR TRAY I'D PURCHASE A LENGTH OF PLASTIC "D" MOULD [AVAILIBLE AT WICKS] AND A GOOD QUALITY SILICON [FOREVER WHITE ] MITER CUT THE MOULDING TO LENGTH & SILICON AROUND THE TRAY MAKING SURE TO GET PLENTY OF SILICON INTO THE LARGE GAP. PUSH TH...