General questions
Yes, we recommend the hood be taken off for proper installation. You will use the 3M #80 spray adhesive and we would not want that adhesive to go on your engine.
It's attached to the hood with 3M #80 spray adhesive. Using the plastic push pins alone is not recommended because the liner will sag in areas not held in by the tabs. The holes are punched on the liner and serve two purposes: 1) to ensure as you install the liner that you are installing the liner correctly. The holes line up with the holes in the underhood for the plastic pins indicating it's correctly aligned. 2) Once the liner is installed you can insert the plastic pins to complete the "stock look". The liner will "grab" the pins and they'll seat well.
Home Depot in the paint aisle, and Amazon are the most common places to find this adhesive spray.
No, #80 is most closely formulated for the type of material my liners are made of, plus its heat rated to 200 degrees. Other adhesive numbers such as 75, 77, and 90 are made for other chemical materials and have lower heat ratings. Someone used 77 on their liner and it came unglued - the result was a liner laying on top of the engine. Luckily nothing happened to the liner or the engine, and the result was a quick sanding of the underhood with a 3M sanding sponge to remove the now-dried 77 adhesives, and a re-installation using the correct #80. The owner reported much better results! If you can't locate 3M #80 at all, then the suggestion is to use a spray or even a liquid adhesive that can be brushed on, such as contact cement, as long as it's made for rubber/vinyl, and is heat rated for 180 to 200+ degrees. The liner is neither rubber nor vinyl, and it does have components of neoprene.
Full refunds of the Hoodliner and Decal are permitted within 14 days of Hoodliner delivery. (Note: If the Hoodliner or Decal have already been shipped the refund will be just for the Hoodliner and Decal, not the shipping.) If you would like a refund you are responsible for the return shipping cost and return the Hoodliner in the original box. Once Hoodliner and Decal are received and there is no damage to the product your refund will be issued.