Park AP-1 Adhesive Primer - 10ml Pen YGroup_7033691242541 The Silicone compound is grippy

The Silicone compound is grippy regardless of whether it is wet or dry

Your phone won't flap around when you're pedalling and is relatively safe in the event of a crash

The absolute best of both worlds

5cm total length

The Forty Series is a quality product at a mid-range price point

Park AP-1 Adhesive Primer - 10ml Pen YGroup_7033691242541 The Silicone compound is grippyMaximises the Effects of Park Tool's Thread Lockers and Retaining Compounds Park Tool recommends the use of the AP 1 adhesive primer to prep the surface of anything you intend to apply thread locking or retaining compounds to. Prepping the surface will maximise the effectiveness of these products and greatly reduce their curing times. Important Note: Any components or fasteners that will come into contact with carbon surfaces such as press fit bottom