Autocross numbers for non-magnetic doors
#16
Track Day
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RacingChris44 (02-27-2023)
#17
I autocross my 2021 GT4 in various local clubs, including SCCA so having 8" tall numbers, 4" tall class letters is required. With the aluminum doors, I've tried various methods of applying class numbers/letters. Lost several static cling numbers off the door, magnetics off the rear fenders. For a while I had success applying Track Armor clear tape to the door panel, then black duct tape on top to make numbers. Very effective, looked meh. I ordered magnetic numbers from a reputable supplier, looked great, but unless it was a very hot day, the magnetics would not contour to the rear fender well enough to stay on at speed.
Looking for a solution, wanted to share with others what I recently found. The custom magnetics were approximately 40 mils thick, nice, durable, work great on a flat metal door. Looking for a thinner magnetic sheet, I first tried 16 mils (too thin and not good magnetic hold), then 30 mils (good flex, good hold). Used my purchased numbers as template, traced out numbers on the 8x11 magnetic sheets of 30 mil. Then spray painted black with vinyl spray paint. These number adhere to the rear fenders well, flex to the curvature of the fender even in cool conditions. No puckering, lifting of edges, etc, such as with the thicker numbers. Will test this weekend, but my impressions are very positive so far! If you don't mind tracing and cutting out your own numbers, this is a good option! Much more convenient when swapping numbers in multi-driver cars!
Looking for a solution, wanted to share with others what I recently found. The custom magnetics were approximately 40 mils thick, nice, durable, work great on a flat metal door. Looking for a thinner magnetic sheet, I first tried 16 mils (too thin and not good magnetic hold), then 30 mils (good flex, good hold). Used my purchased numbers as template, traced out numbers on the 8x11 magnetic sheets of 30 mil. Then spray painted black with vinyl spray paint. These number adhere to the rear fenders well, flex to the curvature of the fender even in cool conditions. No puckering, lifting of edges, etc, such as with the thicker numbers. Will test this weekend, but my impressions are very positive so far! If you don't mind tracing and cutting out your own numbers, this is a good option! Much more convenient when swapping numbers in multi-driver cars!
#18
Instructor
Looking for a solution, wanted to share with others what I recently found. The custom magnetics were approximately 40 mils thick, nice, durable, work great on a flat metal door. Looking for a thinner magnetic sheet, I first tried 16 mils (too thin and not good magnetic hold), then 30 mils (good flex, good hold). Used my purchased numbers as template, traced out numbers on the 8x11 magnetic sheets of 30 mil. Then spray painted black with vinyl spray paint. These number adhere to the rear fenders well, flex to the curvature of the fender even in cool conditions. No puckering, lifting of edges, etc, such as with the thicker numbers. Will test this weekend, but my impressions are very positive so far! If you don't mind tracing and cutting out your own numbers, this is a good option! Much more convenient when swapping numbers in multi-driver cars!
Totally unrelated - if anybody is looking for magnetic 7s, 1s, As, or Ss that are mirrored, let me know!
#20