Absolutely understand. Perhaps the reason why no retention form is for removal of device if needed. Also less internal strain on the polymer of the housing so the creep due to thermal variance occurs at the adhesive base interface. It’s perhaps engineered micro dampening at the molecular...
Mine is being installed as I type this. I did take the time to talk with the SC tech. Very helpful and even showed me the “primer” for the side of the light bar. Confirmed there is no mechanical sanding or other micro mechanical prep aside from the primer as noted in the pics below. I will...
For sure the surface would benefit from roughening as well as optimal solvent pre-clean…….. anyone who has built a composite aircraft or worked with fiberglass knows how important that is! It’s perhaps just an oversight or inappropriate solvent preclean as prep? Dunno. Ultimately even in...
Insufficient surface area of adhesive, also very suspect is lack of adequate surface decontamination of light bar itself or a failure of the coating on the bar. Micro mechanical surface prep increases surface area dramatically and can make all the difference in the world……. So it’s not the...
Then it sounds like a contamination issue while
Assembling the bar…….. do you all have any photos of the failed interface? I would love to see microscopic images. That may help to
understand what happened.
Cheers
Adhesive is not dumb. The key is appreciation for coefficient of thermal expansion, ideal surface prep and realization of the incredible molecular level adhesion. Some materials you cannot bolt, rivet, etc, so also the potential benefit of vibration modulation etc.
Also, I wonder what material like rain-X or other superhydrophobic chemicals the windshield of those CB that lost the light? Perhaps an unseen alteration to the glass affected the bond. The only way the SC could ensure adequate surface prep is to know exactly what chemicals were used on the...
You can remove the bench without removing the L bracket and post mounts. I cut the extrusions a bit too close but if you leave a little room or if you don’t have the side Molle panels they remove easily. At some point I will TIG weld them to dispense with the c-clamps too.