What kind of vinyl this could be?

[AGCharlotte]

For what it's worth, here in Canada, my IJ35 comes on a blank unbranded liner. From Grinco & WRI.

IJ35 (without the air release) comes with the blank backer... IJ35C comes with what the OP posted.

 

[CanuckSigns]

I just looked in our print room and IJ180 and IJ40c both have identical backer paper, it has dark blue writing and says Controltac. what you have there is 3M Ij35c, which is a super cheap calendared vinyl. I find it impressive that you managed to get it to wrap on a vehicle! but also surprised that you didn't notice it!

 

[WorxMedia]

I just looked in our print room and IJ180 and IJ40c both have identical backer paper, it has dark blue writing and says Controltac. what you have there is 3M Ij35c, which is a super cheap calendared vinyl. I find it impressive that you managed to get it to wrap on a vehicle! but also surprised that you didn't notice it!

I agree, if youve worked with 180 and installed with IJ35c you would definitely be able to tell a difference, regardless of installing on a flat or contoured surface.

 

[Pewter0000]

I just looked in our print room and IJ180 and IJ40c both have identical backer paper, it has dark blue writing and says Controltac. what you have there is 3M Ij35c, which is a super cheap calendared vinyl. I find it impressive that you managed to get it to wrap on a vehicle! but also surprised that you didn't notice it!

Yeah their cast products usually have "control tac" written all over them (or if it's 1080 I think it has "wrap film" written on it)
One time we got a wrap install job printed out-of-house and pretty sure it was that stuff. Our poor installer had to try and cram it over rivets, it was an ugly day.