Results 1 to 11 of 11
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10-01-2017, 01:05 AM #1
Can you add material to widen Instaprint forefoot?
Maybe it isn't a big deal, but it comes down to this. I got some QST 120 boots last year that are great, except the toe box has always been too narrow (my forefoot measures 111mm across). I got instaprints made and I kept asking for punches in the toe.
Then I realized the liner is just too narrow in the front, which is really what is causing the discomfort.
I want to try some new liners, but the insoles are trimmed super narrow. I don't know much about Instaprint posting, can you add more material to the sides? Is it necessary?
I would go back to the shop but I'm currently 2000 miles away...
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10-01-2017, 07:52 AM #2
odds are it will be fine.
get the liner stretched (same system as stretching a shell)
you can heat the footbeds and stretch them out by hand a bit if neeed
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10-01-2017, 10:57 AM #3
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10-01-2017, 11:01 AM #4
If you need to add material to a footbed (for example to use a footbed built for a performance fit boot with a touring boot 1 mondo size larger) you can simply trace the toe shape on some Bontex (thick dense cardboard) and duct tape it on.
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10-01-2017, 01:13 PM #5
You can ignore the foot (or not), but the bootfitter actually did stretch the liner - seemingly the same way they punched the boots, but it didn't do much. The material in the toe area seems less stretch-worthy to me on this liner, but I don't really have a good reference.
Have any of you guys ever tried to stretch a liner using this tool? https://www.amazon.com/gp/product/B000PMNS3E/
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10-01-2017, 01:22 PM #6
That works for my street shoes, not so much for ski boot liners. You need to heat the bottom and side of the liner until the heat set glue gets soft, peel the black laminate off, stretch the crap out of it, then stick the sole laminate back on before it cools completely. Typically the seams where the liner is sewn together will be partly exposed after stretching. I use a 6" extension on the boot press for the stretch, but you could use a broom handle or dowel in a vise just as well. Be careful around the seams at the fifth met area so you don't tear them.
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10-01-2017, 01:53 PM #7
Got it, so basically just stretch the crap out of it with a rounded end after pulling the laminate off.
I'll get myself a heat gun and give'r a try.
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10-01-2017, 02:41 PM #8Rod9301
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The easiest way is to make a longitudinal cut in the bottom of the liner, this will allow the liner to widen. Then put dinner duct tape at the bottom, making sure that the edges of the cut are spread.
I've done this on every liner for the past 10 years, resort or Backcountry, and it works well. No drawbacks.
I've never had luck with stretching the liner.
Sent from my Moto G (5) Plus using TGR Forums mobile app
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10-01-2017, 02:58 PM #9
So you basically rely on the footbed to support the bottom of the liner. That's an interesting concept, I thought about the idea of sewing additional material on.
I'll probably try the stretching some more first before I start operating on my liner.
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10-01-2017, 04:40 PM #10
That's what they teach at Masterfit, and will get you even more room. If you heat the black laminate and pull the whole thing off down to the midfoot then re-attach it, you can dispense with the duct tape (usually you have to contact cement it back on). FWIW, I have pretty good luck with stretching liners every day in the shop.
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10-01-2017, 05:13 PM #11
Thanks guys for the info! I will report back, starting with stretching. Cutting the liner will be next...But I'll have to get on the snow first
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