Van Build- 2022 Mercedes Sprinter 144WB, Thermal Insulation and How to install iBoard running board 

Thank you Mike

You can do either or. Spray on 3M then apply. You don't need to do both.

@@BoChuonOUTDOORSVANBUILD This comes from the 3M 90 Product Data Sheet: "For best results apply Spray 90 Adhesive to both bonding surfaces. Bonds can be made approximately 30 seconds after application. To achieve high initial strength allow 2 to 3 minutes before bonding for ultimate initial strength allow 5 to 10 minutes before bonding. All bonds must be made within 10 to 15 minutes after application".

Yes

@@BoChuonOUTDOORSVANBUILD u dont mind sendling link please thank u