Basically you want to gently melt the top layer of the vinyl which in turn will give it a glossy shine.
To repair weathered white vinyl.
The solution is a liquid vinyl repair kit and keeping your vinyl conditioned to prevent further wear and tear.
Write the measurements down and add 6 to 7 inches which you will need when installing the new fabric.
Knowing this you can preserve valuable items by regularly treating them with commercial plastic conditioning products.
Run a heat gun over a weathered piece of vinyl.
Mix vinegar and water in a large bucket in a 30 to 70 ratio 30 percent vinegar and 70 percent water.
If the damage is severe hydrogen peroxide can reverse the damage but it should only be used on white or gray products.
Run the tap water until it is hot.
Run the heat gun over the whole thing moving back and forth so you don t stay in one spot too long.
The steps to successful vinyl repair.
When this topcoat wears away or is damaged the vinyl can crack.
Use a product supplied with a leather repair kit in this instance.
This cleaning mixture is used to wash the vinyl siding and eliminate dust dirt mildew mold.
Any plastic that comes into contact with the sun will eventually crack and lose coloring.
Spread the filler apply heat with a hair dryer or as specified in the product instructions and repeat until the surface is flush.
You see this often in cars boats and and other furniture that have high wear action.
If your vinyl is just looking weathered and faded a heat gun can bring it back to life.