If the material of your liner is sagging partially especially on the edges you can use a tube of glue to fix it in its place.
													
																	Glue headliner board to roof. 
									
																	Https amzn to 2wsxyr0 a big thanks to headliner. 
																	Don t use the ordinary glue as it cannot fix a headliner. 
																	The adhesive will usually be clearly labeled as one that can be used on automotive interior applications. 
																	Gluing is one of the easiest methods or repairing a sagging roof liner. 
															
													
									
																	You can find the proper adhesive made by several different popular brands available at almost any automotive parts store. 
																	I don t know why that would not work here on the steel. 
																	This product can be used for a wide variety of projects not only for your headliners but also for all lightweight materials. 
																	If a multifunctional product is the best headliner adhesive for you the 3m super 77 product will surely impress you. 
															
													
									
																	Heres some good 3m headliner adhesive. 
																	To glue a headliner into place you will want to use a special type of adhesive designed for such application. 
																	Sprayed contact adhesive on both peices. 
																	It already had the foam attached about 1 4 thick. 
															
													
									
																	Doing the job yourself. 
																	I just used a wire wheel to clean the old glue from the original headliner board. 
																	Then put it on. 
																	Use a roof lining adhesive that is made especially for gluing these fabrics. 
															
													
									
																	This adhesive can bond quickly and does not leave a stain.