Even though vinyl is a tough, puncture-resistant material, it's still vulnerable to sharp edges and points. Age can cause a vinyl chair to split as well. Splits in vinyl seats can grow quickly, becoming next to impossible to repair. Catching a small split or hole early can keep the vinyl looking good and allow you to get years of use out of the seat or chair.
Remove any loose threads around the split with a pair of scissors.
Clean the area around the split with rubbing alcohol and a lint-free cloth. The area needs to be completely clean for the vinyl repair mixture to hold.
Cut a piece of sub patch material 1/2 inch larger than the hole.
Insert the sub patch material under the vinyl between the vinyl cover material and the chair padding. Use a pair of tweezers to insert, flatten and center the sub patch.
Examine the colors that came with the repair kit. There may be a perfect match to the existing vinyl. If not, mix the colors provided with the vinyl patch repair kit to match the vinyl seat. A mixing container and spatula will come with the kit.
Test the color by placing a small amount of it on an inconspicuous portion of the vinyl and allow it to dry. If it does not match, repeat Step 5. After re-mixing the colors, repeat Step 6 to ensure a good color match.
Choose a grain pattern paper from the kit that most closely matches the vinyl seat.
Ensure the vinyl is laying flat. Some vinyl repair kits will instruct you to heat the split area with a curing tool and grain paper to flatten the vinyl.
Place a small amount of the repair mixture between the sub patch and the vinyl above it, then begin covering the split area with the mixture. Smooth the mixture evenly, feathering it 1 inch past the damaged area to help it blend with the rest of the seat. Some kits will include a repair adhesive that you'll use to secure the sub patch to the vinyl.
Lay the grain paper over the patched area and use the curing tool to melt the vinyl and and the repair mixture together so that they bond permanently. The curing process will take 30 to 90 seconds.
Allow the area to cool completely before removing the grain paper.