Things You'll Need

Instructions

1

Line the kitchen sink with a non-slip mat. Your best defense against scratches and stains in plastic kitchen sinks is by avoiding excess contact with the sink itself. Dishes piling up in the sink can cause wear from everyday use, but a non-slip mat can act as a buffer between the dishes or flatware and the sink itself.
2

Use non-abrasive cleaners to regularly spot clean the kitchen sink. Infrequently, you may choose to use a steel wool brush to get out set-in stains or a caustic substance like bleach, but these should be used sparingly to avoid permanently damaging the finish of the sink. Whichever detergent you use, rinse thoroughly to avoid letting the cleaner to permeate the sink's surface.
3

Buff out scratches with a compound found in car supply stores for repairing damage to plastic areas such as headlights and bumpers. This compound is inexpensive and easy to use. It is important to follow the instructions noted on the packaging. Generally, the process will involve lightly sanding the area and filling with the compound.
4

Fill scratches and cracks in the sink with a epoxy filler designed for general plastic repair. Clean your plastic sink as usual and dry with a towel. This is another inexpensive option that simply involves prepping the area surrounding the damaged portion and filling as necessary. Be sure to choose a color that matches your sink as closely as possible, or the filler can appear more noticeable than the damage itself.