Magnet warping help

[brycesteiner]

Hello,

I've done a few vehicle magnets now and I'm not extremely happy with them after giving them to customers. They look good initially and none have complained, but I see them warping and not adhering to vehicles on the edges after a month or two and I don't think this is acceptable.

I thought maybe it was just magnets are like this but now I look at a magnet I outsourced in the summer time and it looks much better.

The material I had purchased was Digimag 20 mil from Fellers. It seems like it works well initially and looks great, but I unrolled a little again and it looks like it's warped straight off the roll. Is this normal? It seems to have a very strong magnetic hold.

I used got this kind because it had more poles per inch and it was a little thinner and thinking it would adhere better because the wind couldn't grab it as easy if it's thinner. I have been mounting the vinyl on to it because of the horror stories I hear here about damaging the heads from strikes.

1. Is the vinyl causing this, if so, would I be better off printing straight to it?

2. Is this a bad roll or is this normal?

3. Should I cut it out of the middle only and waste the outsides that look warped?

I'm just not sure what to do.

 

[Gino]

Personally, I would not use .020 for vehicle magnetics. Been doing them for over 43 years and .030 was always industry standard.

 

[J Hill Designs]

Personally, I would not use .020 for vehicle magnetics. Been doing them for over 43 years and .030 was always industry standard.

this

 

[reQ]

Gino is right/ 0.030 is even rated as "vehicle grade". So using fridge magnet material for vehicles is bad choice by default.

 

[Billct2]

yep

 

[brycesteiner]

Okay. I will do that.

Is this brand fine?

Does the warping in the picture man anything or is that not an issue?

Chalk it up to learning.

thanks,
Bryce

 

[ChaseO]

I think that is fairly normal warping for magnets, but I also use .030 on vehicles. Continue to print on vinyl and apply to the magnet instead of direct printing. That being said, some cheaper vinyls will shrink in the sun and curl the edges, allowing failure.