K2 / Proflex Riders Group

General => Tech Forum => Topic started by: Thunderchild on October 17, 2012, 04:37:19 pm

Title: Resin used for Oz thermo plastic
Post by: Thunderchild on October 17, 2012, 04:37:19 pm

Anyone know the resin base for the Oz frame material?  I work at a university and spoke with one of an engineering professor who specializes in composites and he may be able to help with stabilizing my drifting bottom bracket.  He needs to know what the resin base is. 

Thanks
Thunderchild

Title: Re: Resin used for Oz thermo plastic
Post by: Spokes on October 18, 2012, 01:12:32 pm

I dont know the exact resin bit I know Araldite is a recomended repair for carbon. Araldite is a two part epoxy adhesive.
There must be something somewhwere on the Tinterweb about it? Everything is on there somewhere. Was it Shovelon who met someone from the Proflex company a short while ago? Didnt he get an early ali frame from him. Maybe he could contact him and ask if he knows or could point us in the direction of someone who does?

Chris

Title: Re: Resin used for Oz thermo plastic
Post by: Spokes on October 18, 2012, 01:38:35 pm

Found this in the Files section "carbon tech sheet"
http://idriders.com/proflex/files/carbon_tech_sheet.pdf (http://idriders.com/proflex/files/carbon_tech_sheet.pdf)
It says the frames were made from Thermoplastic carbon sheet in Vashon Island in the heart of Puget Sound. Maybe you could make inquiries for factory's in that area that could have manufactured the frames? Its a start??
The fact that the frame were made in America must make it easier to track the manufacturer down, surely?

Chris

Title: Re: Resin used for Oz thermo plastic
Post by: Spokes on October 18, 2012, 01:50:36 pm

Look up the uses Araldite has on Wikipedia! :o It should certainly be strong enough for our bike frames.

Chris

Title: Re: Resin used for Oz thermo plastic
Post by: fyrstormer on October 24, 2012, 12:28:56 pm

Is the problem that the metal BB shell is sliding around inside the carbon frame? If so, the way I'd solve the problem is to re-glue the BB shell in the correct position with epoxy, THEN use a high-speed diamond burr (included with most Dremel kits) to bore a hole through the outside of the frame into the midline of the BB shell, then tap the hole and drive a screw in to mechanically anchor the BB shell. That way the glue won't have to resist the shell's tendency to drift over time.

Title: Re: Resin used for Oz thermo plastic
Post by: spikebender on November 24, 2012, 12:20:48 pm

epoxy and a set screw would be the best fix. I have some epoxy made by Lock tight  that I've used on a few different applications. it drys clear and seems to be better than the old J B weld. its in two squeeze bottles and is more user friendly that those syringes