Oracal is great vinyl. This is the way I look at it. We use 651 for flat smooth surfaces or simple curves but primarily for window graphics. It can be used for vehicle graphics on the same type of surfaces but is and always will be second to cast. We typically use 651 for production of car magnets, as well as large runs of die cut window decals. We use it for signage on 5 year or less substrates such as painted MDO or overlayed plywood.
We use 751 cast for window graphics on complex curves and for most all automotive applications where additional conformability to rivets and contours isn't a requirement. We also use it for signage on most substrates.
We use 951 cast when we need a cast metallic or when we need a vinyl with additional conformability to rivets and contours. We also use it for high end signage on long term substrates such as new vehicles and prefinished metals.
We use RTape Conform application tape with all 3 types of vinyl.
These are just my guidelines. Others may have different opinions.
yea im a uscutter customer, and yes GREAT service and products, i think you might be right about the greenstar being a house brand, i might just use if for practice or family members that always ask for free stuff lol. and i will definitly look into siser heat press vinyl becuase i was actually going to buy a heat press and some heat transfer vinyl soon. also i just got turned to fellers. pricing seems to be good there as well.I tried Green Star once and really wouldn't recommend it. It's actually not terrible...it's just not great, especially compared to Oracal. I'm assuming you must be a U.S. Cutter customer. Great company with great service, IMO. I started with them 3 years ago and still use them for about 70% of our vinyl purchases. They sell mostly all top quality vinyl. I'm guessing the Green Star is just their "house" brand and it is intended more toward the hobbyist market, as are their cheaper imported cutters. You will like the metallic polyester films they sell, too. I believe it is made by Creative Film Corp. and it has a 5 or 6 year durability rating. Also the Siser heat press vinyl is probably the best heat press vinyl on the market, IMO. It has a much softer feel than Thermoflex and a lot of others and it holds up great after hundreds of washes.
Some years back there was far more difference between calendared and cast vinyl. Today not so much.
Cast is inherently more friendly to curves but for a simple curved door or window, they're pretty much functionally the same. I'm sure that this will bring cries of outraged protest from the teeming masses but for flat to simple curves the only real difference is the 651 is rated for 6 years, the 751 for 8 [i think], and I have no idea what 951 might be rated. 6 years is merely a rating, how long it actually lasts, from a few years to a really long time depends of a lot of things, not just the manufacturer's rating.
yea im a uscutter customer, and yes GREAT service and products, i think you might be right about the greenstar being a house brand, i might just use if for practice or family members that always ask for free stuff lol. and i will definitly look into siser heat press vinyl becuase i was actually going to buy a heat press and some heat transfer vinyl soon. also i just got turned to fellers. pricing seems to be good there as well.