Tyler Copp made five 3-pointers and the Titans smothered the Papermakers with an impressive second-half defensive performance.
Union led by two points at the half, then held Camas to five points in the third quarter and five again in the fourth.
Jeff Wu added 10 points for the Titans.
Trent Johnson led Camas with 11 points.
The Titans kept pace with the Evergreen Plainsmen, who won Monday night. Both teams are 7-1 in the 4A Greater St. Helens League.
UNION 69, CAMAS 45
UNION — Tyler Copp 21, Jeff Wu 10, Trent Cowan 8, Seaver Whalen 7, Kyle Mercer 7, Micah Paulson 5, Skillful Davis 9, Micah Merfeld 0, Isaiah Robinson 0, Derek Derryberry 0, Riley Hawken 2, Spencer Martin 0. Totals 26 (10) 7-13 69.