PERSPEX

KenF

Gold forum user
Messages
397
Okay, I did something totally unnecessary today to my Tiger, but I did it anyway. I must be getting bored.

A couple years ago I replaced the hardtop side windows. My old windows (I assume they’re the originals) had PERSPEX A.S.4. branded on the bottom leading edge. The UK trademark name Perspex is comparable to the US Plexiglas, both acrylic. Not sure what the AS4 represents. The new ones from SS might be Lexan polycarbonate, don’t know. Weird thing is each side window was stamped on both the outside and inside. I’m not sure who Rootes thought would be in the back “seat” that would need to be able to read it unreversed. So the windows are the same shape, but stamped in mirror images of each other. The front lettering appears readable from the outside, rear lettering from the inside.

Here's a pic of my old right and left (broken) showing the lettering and position.
IMG_7266.jpg


I ordered a branding iron from some nice gal on Etsy, who was great in that she sent me exactly what I requested: brass, 2 rows, 7/8” wide, 3/8” high, 12-point Arial Rounded font, and the 4 positioned below the P above it. Also ordered a power regulator so I could dial down the heat to get a better impression. I found 3-5 seconds at 350 worked good for me, above 400 tends to go deep, fast.
IMG_7273.jpg


I practiced a few times with the temperature, timing, positioning, etc., before attempting to do my windows. I did remove them (5 screws) since there is the lower frame rubber gasket in the way of doing the inside. It wasn’t until reinstalling windows I realized I could have just lifted the rubber seal off the frame and use the frame to level the inside stamp first, then do the outside. So, really no need to remove the windows. Here's the finished right side. Look at those scratches already. The spacing between the outside and inside letters is about an 1/8" too much.
IMG_7272.JPG


Also, the back window is factory stamped from the inside, lower left corner, different branding tool than used on the side windows.
IMG_7270.JPG


Yeah, I know, I'm crazy! :rolleyes:
 
Looks good and great detailing. Ive seen a few people replicate the original perspex lettering
 
Awesome the BMW 3.0 CSL had the same manufacturer of the rear window on there street/track model. The BaT auction site has some pictures of the stamping on the BMW's but I don't recall seeing the AS4. Nice touch for sure great job.
 
Ken was nice enough to send me the stamping/branding tool after he sold his car! I went through my raft of useless old bits and found 2 sets of original qtr. windows. One set is surface branded (like Ken's car) on both the inside and outside "PERSPEX A.S 4", and the other set is reverse branded. "PERSPEX M1 AS-4" I also have the back glass from the same hardtop and it is also reverse branded "PERSPEX M1 AS-4"

So now I'd appreciate some guidance on which cars (or years) received which brand. I'm also going to get a die made for the alternate wording.
P5101956.JPG
 
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