KT+ This strong wall mounted profile is suitable for internal and external applications. Uses both JN (internal, non re-enforced) and JR (external, re-enforced) Jonc. Pros - 37mm deep, can be rolled into a curve to go around a curved surface. Cons - requires a solid surface to fix to (but then again, they all do). Note* all Crystal tensioning profiles require a solid fix for the graphic to reach optimum tension. Failure to get a solid fix can have detrimental effects on the graphics tension. samples of KT+ from our Flickr page You must be logged in to post a comment.