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redlig
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Just started lower seat and larger tank for crf230 and will be gluing the cover onto the ally pan can anyone suggest the actual name of a good contact adhesive please. Thanks !
Could anyone suggest a decent pair of tinsnips to purchase as my 50 year old ones have seen better days as have my hands.
Could anyone suggest a decent pair of tinsnips to purchase as my 50 year old ones have seen better days as have my hands.
Screwdriver
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Received wisdom tells me you don't need a particularly strong glue for your foam layers. They should be held in place by the vinyl and then you're going to sit on it anyway. A firm strong glue can be counterproductive when layered onto soft foam.... 
Wiss tinsnips. Good set of secondhand ones. I previously bought some cheap Chinese things and they're so bad I'd be quite happy to send them to you. They are useless though...
<edit> re: glue. If you've ever taken apart an old Japanese seat, the first thing you notice is it's not stuck down to anything. Just a perfectly shaped expanded foam and it simply sits on the bare seat pan.
Wiss tinsnips. Good set of secondhand ones. I previously bought some cheap Chinese things and they're so bad I'd be quite happy to send them to you. They are useless though...
<edit> re: glue. If you've ever taken apart an old Japanese seat, the first thing you notice is it's not stuck down to anything. Just a perfectly shaped expanded foam and it simply sits on the bare seat pan.
Morrisman
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In the past I’ve used carpet underlay foam. It’s half inch thick, made from chipped foam, so stiff enough to sit on without squishing right down. And it’s cheap, experiments can be done building up in layers.
redlig
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I was thinking more about the " outer " cover not the foam . Which arrived today and is self adhesive on one side which might be a mixed blessing.Received wisdom tells me you don't need a particularly strong glue for your foam layers. They should be held in place by the vinyl and then you're going to sit on it anyway. A firm strong glue can be counterproductive when layered onto soft foam....
Wiss tinsnips. Good set of secondhand ones. I previously bought some cheap Chinese things and they're so bad I'd be quite happy to send them to you. They are useless though...
<edit> re: glue. If you've ever taken apart an old Japanese seat, the first thing you notice is it's not stuck down to anything. Just a perfectly shaped expanded foam and it simply sits on the bare seat pan.
Many thanks for your offer of a pair of chineesium snips but as I've already got 3 sets of well worn ones I feel I must decline .
keithski122
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Where I used to work we used alpha an189 contact adhesive.At home I use contact fix aht100 from as trim which is a bit thin as its sprayable, they do a brushable version though you can't buy it in smaller quantities, not really had a problem with brushing the sprayable one though, worth giving it two coats as it does soak in.
Screwdriver
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Yes. Unless the self adhesive strip is itself elastic, as soon as you make a divot in the top layer it will pull the lower layers towards the deformation rather than stretch and allow the foam to distort. If it can't pull the sides in so to speak then it will stiffen up and act like a plank on top of the foam...
My cheapo Chineseums are virtually new and unused. I tried to use them but since they didn't actually do anything except flex apart, they're still as good as new (i.e. as bad).
Found a nice set of Wiss on eBay and they are awesome.
oldbikedavey
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Been using a section of a memory foam wheelchair cushion on the seat of my Beeza for some while now, and it works rather well..
Admittedly a hybrid layer that also involves medium density seat foam and sheepskin, but it does work most effectively....
Screwdriver
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Yes it will conform to your body but on a motorcycle, you bounce up and down a lot. By the time you come down, the memory foam will still be compressed, hence the need for springy foam.
oldbikedavey
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Seems to work pretty well thus far.....
Used the stuff on the basis that if anyone needs a comfortable cushion, it's someone in a wheelchair ( speaking from experience ).
It has other layers , as detailed, with the upper layer being sheepskin, wool side down.
Got to be good if they wrap sheep in it.....
Morrisman
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I had an AirHawk seat cushion and a sheepskin on my Beemer, for long trips. I did several 500 mile days back when I was still going across the channel several times a year.
Screwdriver
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Yes of course. That is true which Is why I said the same thing above. You can use memory foam alongside regular upholstery foam. Just saying what the drawbacks are and why you can't use memory foam exclusively for motorcycle seats specifically.
Once I have tested the fit for this seat on the bike, I will still need to come up with a fixture front/rear before I get around to sculpting the foam. That's awkward in this case because the owner has done all the fun stuff getting the gross parts of the construction without detailing any issues such as how the tank will be secured, how the seat hump is fitted, where the wiring loom goes, battery etc. etc. So I sort of have to design around these missing essentials and leave some wiggle room for whatever the owner wants to do. Chances are, he'll leave that to me also...
oldbikedavey
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My backside, my rules....
Multiple layers of sheepskin may have much to recommend them....
Screwdriver
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No sorry. I have remade seats for my own bikes but this one is for a customer so I'm getting it done by someone who does know...
FWIW, if I was doing it myself, I'd want some physical connection too - like staples. You can't staple aluminium but you can permanently bond a wood/plastic strip inside the pan to allow for staples.
Morrisman
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I used this stuff, to glue the felt lining in my last hot rod. Also used it to glue rubber to an aluminium radiator. It still sprayed, even after spitting on the shelf for over two years.
It has an adjustable spray and once you get a feel for the spray pattern you can put the glue down pretty accurately.
keithski122
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Aerosol contact adhesives don't hold to a high temp, personally I would only use them for temp tacking something together.
If its self adhesive surely you don't need a glue.
If its self adhesive surely you don't need a glue.
redlig
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I looks like I'm going to have to draw a picture.
selectedgrub
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