Skate board tape of the 1 inch variety on top of a sand paint application works for our temporary ramps. to save on the quantity of tape used I applied the strips on a diagonal and left a few inches of space between them. That way the power chair doesn't have to be driven down the exact center.
$2 a roll of for 5 meters by 3 centimeter tape at IKEA.
$2 a roll of for 5 meters by 3 centimeter tape at IKEA.