The manufacturer lists the life expectancy of 751 as 5-8 years vs 3-6 years on 651.
That means both 651 and 751 should beįine temperature wise - but 751 has the advantage because it's thinner, more durable, and can't be lifted as easily. It is a better bet than 651 and it's definitely considered a high performance vinyl. While the manufacturer won't guarantee that Oracal 751c is dishwasher safe, That's 54 degrees hotter than Oracal 651 which is temperature resistant to 176 degree.