Date registered: Apr 2007
Vehicle: 1992 500SL, 1988 560SL, 1977 450SL, 1999 E320 4matic
Location: Trumbull, Ct.
Mentioned: 5 Post(s)
Quoted: 83 Post(s)
ABS Cement-Quick Fix Combined with Fiberglass for Broken Plastic and ABS Parts
Perhaps this is old news for some of you here. My friend's 1991 500SL had a damage trunk battery cover that was broken in more than 25 places, in which I think it appeared someone ran over it. I decided to make an attempt to repair it. In the past I used other method so I decided to try something new. The piece was originally made from ABS. I bought a can of ABS cement for $5.87 a Home Depot. I had a sheet of fiberglass laying around. Briefly sanded the area with 80 grid sandpaper, clean the area with "Prep-All", applied the ABS cement with the brush that came with the can, then applied the fiberglass and the ABS cement again, one coat, immediately followed by a second coat. The glue drys in and around 15 minutes. Then I moved on to the next crack. I had some pieces missing, but no problem as I easily reshape them using the same procedure as before. This procedure can be used for many other broken plastic parts in our cars, large or small. The photos attached show the results and how easy and quickly this can be done. Using a orbital sander with 220 grit the next day, allowing the cement to completely cured, I quickly smoothed out the raised areas, (no photos yet of the finished product). The ABS cement dries to a hard finish and melts in with the original ABS plastic part. It may look like a mess from the photos, but in the end it looks new again. It's now a hard and a rigid piece, just as it was before....
Last edited by carltwo; 08-12-2019 at 07:27 PM.