PhilNW 44 Posted May 17, 2020 (edited) Paint on bonnet has cracks in it. It has had a respray sometime before I bought it Closer inspection looks like there is a mastic substance between the stiffeners and bonnet skin which has dried out over time and now the skin is vibrating causing the paint to crack. Thought it was a reaction to the previous paint but now thinking differently. Is this mastic normal rather than spot welding the two together, which I guess would have caused dimples in the skin? Edited May 17, 2020 by PhilNW Share this post Link to post Share on other sites
DamirGTI 342 Posted May 17, 2020 Yes , the stiffening structure is pretty much bonded on .. spot welded too but only on the corners of the bonnet . D Share this post Link to post Share on other sites
PhilNW 44 Posted May 17, 2020 Thought that was the case, any idea what sealant/bonding agent will stand the under-bonnet heat? I was thinking Tiger seal but not sure it will stand the temperatures (Upol tech sheet does not state anything) Share this post Link to post Share on other sites
