The relationship between board stiffness and crease recovery (spring back) is an important factor in the performance of cartons. Board stiffness is determined by bending a 50mm (2 in.) length of board through a 15° angle. Crease recovery is determined by holding a formed crease at 90° and measuring the recovery force after 15 seconds. The Crease and Board Stiffness Tester measures the bending resistance of the board and evaluates commercially formed creases.
* Meets BS 6965
* Determines both board and crease stiffness in the range of 0–399 gf (0–3.91 N)
* Digital display of measured force in grams
* Durable construction
* Sample cutter and calibration check weight included
Catalog Number 79-09-00