Sanding sponges work well.
													
																	How to repair dents in aluminum siding. 
									
	
		
	
																	Hopefully the dent will pop out and the siding will be good as new. 
																	Drill a couple of 1 8 inch holes in the part of the siding that contains the dent. 
																	Using sandpaper take off all the paint. 
																	Place a flat washer onto a sheet metal screw and then screw it part of the way into one of the holes you drilled. 
															
													
									
	
		
	
																	Drill a hole in it drill a small hole in the center of the dent. 
																	Use a putty knife to scrape the surface level with the siding. 
																	It doesn t take a lot of force to pull out the dent. 
																	Next pull on the screw with a pair of pliers.