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k Rolling Ball Pressure Sensitive Initial Adhesion Test Machine ASTM D3121
Introduction: This apparatus is takes a steel ball rolling on adhesive tape by rolling distance to determine the merits of tape tack.
I t follow that test method covers measurement of the comparative tack of pressure sensitive adhesives by a rolling ball and is most appropriate for low tack adhesives. It also meet GB/T 4852-2002
Tack Roll Ball Test Apparatus:
Inclined trough equipped with a release lever at the top through which the ball gains downhill momentum.The ball is a 11mm(7/16 in.) diameter steel ball.
Specifications :
| Model. No | PT-6032 primary tack rolling ball tester |
| Groove length | 165.1mm±1.0mm |
| Groove Angle | 21°30'±30' |
| Ball Diameter | Φ11.112mm±0.002mm |
| Ball Material | GCr15 |
| Face Level | 0.02㎜/overall length |
| Roughness of Work Face | Ra 0.4 |
| Design Standards | GB/4852, PSTC-7,ASTM D3121 |
corresponding Standards Content:
Rolling Ball Tack Tester Photos: