TOPIC:

You're making good progress - although it makes me pretty happy that I've got through this part of my build

Progressing nicely Wookie.

Not too long now and you'll be calling on another old friend: Mr. "Pain-ting" !!!
Ultimately, our favourite buddy will show up... Mr. "Ride-ding" ! 

H.

Nice work! i recognise the fine "dust of the sanding that gets everywhere and is a pain to clean up" oh so well.

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Nice work! i recognise the fine "dust of the sanding that gets everywhere and is a pain to clean up" oh so well.

Ain't that the truth, it was a lot of work to make a relatively small change but I think visually the difference is significant and it now looks like it belongs there (IMHO)
Glad I was wearing a mask, I had more white powder on my face than "Carlitto" 

Wookie those ducts are brilliant! Very well done and an idea I may steal in the future!

So another weekend of plastic and fibereglass draws to an end. Been making good progress with the seat pan and a few minor tweaks to the tailpiece but nothing picture worthy at the moment. I had to narrow the rear of the seat pan which is done now and I have started constructing the extension piece for the back which reaches over the tailpiece. Once I am happy with the seat and tailpiece I can make the planned mods to the side panels ( nothing radical, I just want them to fit better than they do now) I have run into a bit of a hold up (other than waiting for adhesive and resin to set !!) All the research I did and the materials I bought are "ABS" however it appears the pan is "polypropylene" there seems to be very few adhesives suitable for polypropylene and even less to join it with "ABS" 
I have found a "hot glue" product that claims to be suitable but it is an industrial product that comes in 43mm slugs - the gun for this is approx £400 which obviously I am not going to buy to use once ( maybe again in the future but don't tell my wife) so I need to find out how long it stays fluid after heating, the plan is to melt with a heat gun then apply with a spatchula if it stays workable long enough. All part of my education " every day is a school day" 

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it appears the pan is "polypropylene"

It's very hard to get anything to stick to polypropylene.  I would think that anything in the hot glue category seems unlikely to give great results. Look for products targeted for "low surface energy" plastics.

I have use this 3M product, DP8010. It has some scary warnings on the label, but it did work for our project.

www.3m.com/3M/en_US/p/d/b40066429/
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it seems like automotive bumpers might be PP.  Perhaps there are some bumper repair products that might also work.

Edit:. 3m also make low surface energy VHB tape.  Depending on the geometry of the pieces you're trying to stick together, that might be an option.

www.3m.com/3M/en_US/vhb-tapes-us/lse-series/

wrote:

wrote:

it appears the pan is "polypropylene"

It's very hard to get anything to stick to polypropylene.  I would think that anything in the hot glue category seems unlikely to give great results. Look for products targeted for "low surface energy" plastics.

I have use this 3M product, DP8010. It has some scary warnings on the label, but it did work for our project.

www.3m.com/3M/en_US/p/d/b40066429/
​​​​​​
it seems like automotive bumpers might be PP.  Perhaps there are some bumper repair products that might also work.

Edit:. 3m also make low surface energy VHB tape.  Depending on the geometry of the pieces you're trying to stick together, that might be an option.

www.3m.com/3M/en_US/vhb-tapes-us/lse-series/


 

Thanks for the info, a lot of car parts are like bike bodywork (ABS) which is easy to bond (and reinforce with scraps dissolved in acetone to make a paste/filler) I will have a look at these products. below is what I have been looking at but I need to call them tomorrow - it says it has a long "open time" but I need to know how long it is workable before I can even consider it

 

wrote:

wrote:

it appears the pan is "polypropylene"

It's very hard to get anything to stick to polypropylene.  I would think that anything in the hot glue category seems unlikely to give great results. Look for products targeted for "low surface energy" plastics.

I have use this 3M product, DP8010. It has some scary warnings on the label, but it did work for our project.

www.3m.com/3M/en_US/p/d/b40066429/
​​​​​​


 

The 3M product looks really good, I have however gone with the below which appears to be a very similar product from a UK firm. The adhesive is a similar price but when you factor in the applicator gun and nozzles etc the 3M works out about 40% more expensive. Hope "it does what it says on the tin" 
 

Looking good! 

Wookie,  Just read through your thread.  Can't believe I missed this but hey someone else spoke of riding season.   Seriously, Really like your build and your process.  Am I reading right, that you are going to use this as a vintage racer or for track days?  All I know is that this is really cool and wish you success.  Subscribed!  

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Wookie,  Just read through your thread.  Can't believe I missed this but hey someone else spoke of riding season.

  Seriously, Really like your build and your process.  Am I reading right, that you are going to use this as a vintage racer or for track days?  All I know is that this is really cool and wish you success.  Subscribed!  

Thanks Forrest, no intention of racing (I haven't had a bike for 20 years so just staying "shiny side up" will be my main focus) I am trying to be subtle with the mods and use as many OE parts as possible from a selection of bikes to hopefully end up with something that "looks right" works better than original and at a passing glance " could always of been that way" If I can hide the fact that it was "nailed together in a shed by a Luddite with a big hammer collection" I will have achieved my goal