"DO NOT", I repeat, "DO NOT" use "3M Plastic Emblem & Trim Adhesive" to attach your reproduction grille medallion. I did use it and all I could do was watch as it slowly attacked the paint and now my $50.00 emblem looks absolutely terrible. My car looked naked without the emblem and now it does not look much better with that terrible looking emblem. Everything was going great until I bonded the emblem. I took out my grille and detailed the radiator support. Everything was painted RED. Wires, wiring harness and the parking and headlight connectors. I made a backing plate that bolts onto the grille and the emblem bonds to the plate. At least the emblem will be easy to remove. Call me STUPID because in November there was discussion about attaching these emblems. One member said "I have never used this stuff, but I have heard that most new vehicles use this type of adhesive for attaching emblems and some trim parts. It is called "3M PLASTIC & EMBLEM ADHESIVE", Part Number is #08061. I am going to make a backing plate that bolts into the grille center and probably use the 3M plastic emblem adhesive." Others said that they have used RTV silicone. The Tech Department has a great article on the emblem installation using RTV silicone. I chose to use the 3M adhesive and learned the hard and expensive way. PLEASE learn by my mistake. Perhaps an installation instruction sheet could be sent with each medallion ordered. On this sheet could be a list of the acceptable adhesives. There should also be a warning. "DO NOT use "3M Plastic Emblem & Trim Adhesive". It will positively attack the paint and ruin your new emblem." Happy 300ing Charlie Valentine 300G, 62 300 Sport Convert.