Does anyone out there know how to stop a crack in the dashboard of a car? We're a little tight on money right now and can't afford to have it professionally done. We aren't looking to repair it right now, only to stop it before it gets worse! thanks!
Check your auto parts department at places like Walmart. I have seen repair kits for the vinyl in car interiors to repair vinyl seats, etc. which come with several color vials so you can mix colors for a better match. I think they are under $20.00, but I have never tried them so I don't know how well they work. If Walmart, K-mart, or Target don't have this item, then try an auto parts store like Auto Zone, Advanced Auto, Pep Boys, etc.
My second suggestion is a more frugal one just for appearances. You could just place duct tape over the cracks to prevent them from enlarging, and then use something like fabric (fleece, velour, felt, canvas, etc.) contact paper, rubberized (or not) shelf liner, or a scrap of carpet that complements your car interior over the top of the whole dash as a temporary cosmetic fix.
I wonder if the process would be similar as used for windshields and the plastic in refridgerators? I have had both problems. The first step is to carefully (slowly) drill a hole, using a small bit, at the tip of the crack. By tip, I mean the end where the crack is expanding. This stops the crack from progressing. Then fill the exisiting crack and drill hole. I would assume any vinyl repair goo the color of your dash as described in the other post would work well.
This is more of a preventive than a cure, but will at least help prevent future cracks. Use ArmorAll or some similar type of conditioner about once a month. It conditions your dash and adds a nice shine too.