Dear List Members:
I received many helpful responses to my question (included below) regarding material for AK flexible liners. Most respondents recommended that I try Proflex with silicone from Filluar, which is claimed to have the properties that I am looking for. Thanks to all who responded. I’ve included two other recommendations after my original post.
John Brinkmann, CPO, FAAOP
Original Post:
Awhile back I submitted a question about flexible inner liner materials for AKs. The responses were very helpful, and I have been using Bioelastic (Northvane from Endolite) on AKs since then. There are several things I like about this material: the ability to drape mold since the material is self-adhesive, the ease of adjustability when heated, and the stiffness that allows the frame to be cut down significantly in key areas. What I don’t like about it is: the weight (I’ve been using 1/4″), and the tackiness of the material (makes it harder to don). I’ve also been told that long term the Bioelastic will discolor.
My current question is: What material would provide sufficient stiffness to allow cut down of the frame proximally (and still support the proximal tissues), allow drape molding (be self-adhesive), BUT be less tacky? I’ve used thin polyethylene prior to the Bioelastic, but like the thicker, softer material.
Responses:
Try Duraflex from Guard Industries, Inc. It sticks well to itself during drape molding, is fairly rigid (even 3/16″ thickness has been working pretty well for me) and it is known for being less tacky. They can be reached at 800 535-3508.
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I use Otto Bock Thermolyn Soft 12mm thickness for AK’s I don’t think it will drape mold well and we blister mold it. I feel that the plastic performs extremely well and justifies the slightly added labor to produce it. It is not tacky and if firm enough to leave the brim low for flexibility in the top of the socket.
