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Glue for scary sharpening

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Glue for scary sharpening

Postby Deejay » 19 Oct 2014, 09:21

Morning all

I thought I'd try this scary sharp malarkey, where you glue wet or dry paper onto a flat surface.

I used an aerosol contact adhesive which worked OK, but was a bit messy (overspray) and a beggar to clean off the glass.

Can anyone recommend an alternative glue?

Cheers

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Re: Glue for scary sharpening

Postby Andyp » 19 Oct 2014, 09:33

Dave,
I use 3M Photo Mount Spray. I spray the backs of the wet 'n' dry over some newspaper then stick to the glass, no overspray. With the amount of honing I do I find that I only need to replace paper once a year, if that. Removal can be a bit messy but white spirit, IIRC, does the job.
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Re: Glue for scary sharpening

Postby RogerS » 19 Oct 2014, 11:54

I quite like scary sharp. The main problem I have is the edge digging in and scraping up the paper.
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Re: Glue for scary sharpening

Postby Andyp » 19 Oct 2014, 12:06

RogerS wrote:I quite like scary sharp. The main problem I have is the edge digging in and scraping up the paper.


Then pull and don't push
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Re: Glue for scary sharpening

Postby RogerS » 19 Oct 2014, 12:36

Andyp wrote:
RogerS wrote:I quite like scary sharp. The main problem I have is the edge digging in and scraping up the paper.


Then pull and don't push


But then I'll get a rounded bevel :eusa-whistle:
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Re: Glue for scary sharpening

Postby Andyp » 19 Oct 2014, 12:42

RogerS wrote:
Andyp wrote:
RogerS wrote:I quite like scary sharp. The main problem I have is the edge digging in and scraping up the paper.


Then pull and don't push


But then I'll get a rounded bevel :eusa-whistle:


Why? If the paper is stuck down it will be flat and the bevel will be flat. In fact I think I saw the chap who sells the fine 3M films for scary sharp advocate pulling only.

Here you go
[youtube]CBZ8446KqkM[/youtube]
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Re: Glue for scary sharpening

Postby RogerS » 19 Oct 2014, 14:17

'twas supposed to be 'ironic' !! Good video, thanks.
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Re: Glue for scary sharpening

Postby Andyp » 19 Oct 2014, 15:57

RogerS wrote:'twas supposed to be 'ironic' !! Good video, thanks.


Oh Sorry
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Re: Glue for scary sharpening

Postby Deejay » 19 Oct 2014, 16:06

Thanks Andy, I'll give it a try.

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Re: Glue for scary sharpening

Postby 9fingers » 19 Oct 2014, 16:55

It only takes a few sharpening posts for the misunderstandings to come out :lol:

Play nicely boys!! :lol:

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Re: Glue for scary sharpening

Postby Woodbloke » 19 Oct 2014, 18:05

I've used the 3M PSA self-ahesive films now from Matt at WH for severial years now and for moi, personally, they're the best thing for honing I've ever used. The coarser grits need sticking to the glass (60 & 100 micron) with a few strips of d/s tape. Remove the old PSA films by peeling and then clean off the goo with white spirit and hot water over the kitchen sink. I pull and push and yep, they will tear but they're surprisingly robust with a bit of care. It's the very finest grits (3 micron) which will tear most easily -Rob
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Re: Glue for scary sharpening

Postby Peter Sefton » 19 Oct 2014, 19:45

We have moved over to Industrial Scary sharp as it is more robust, PSA backed from 80 micron down to 9 micro and then 3 micron PSA lapping film for the finest finish.
I have a You Tube video on my tool shop under Scary sharpening if anyone is interested. This shows how I lay it on water to minimise air bubbles which can cause problems if you do not lay it correctly.
We do use other sharpening methods but feel this is the most cost effective for the quality of edge you can achieve.
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Re: Glue for scary sharpening

Postby Woodbloke » 19 Oct 2014, 20:55

Peter Sefton wrote:We have moved over to Industrial Scary sharp as it is more robust,

Agreed, yes it is, but I've still got a lot of the old stuff to use up before I re-order - Rob
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Re: Glue for scary sharpening

Postby Peter Sefton » 19 Oct 2014, 21:25

Woodbloke wrote:
Peter Sefton wrote:We have moved over to Industrial Scary sharp as it is more robust,

Agreed, yes it is, but I've still got a lot of the old stuff to use up before I re-order - Rob


Me too, that's why we are selling the old stuff off! But some people still prefer using it.
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Re: Glue for scary sharpening

Postby Frank » 19 Oct 2014, 22:39

Andyp wrote:
RogerS wrote:I quite like scary sharp. The main problem I have is the edge digging in and scraping up the paper.


Then pull and don't push



A good friend of mine took me a couple of years ago to an event where this type of sharpening system was being shown, the chap demonstrating, like the fellow in the video did all the sharpening using a pull stroke presumably to counter the problem RogerS raises.
There was no doubting the results but I have never seen a slower method of sharpening, it appeared that the finer the grit the greater the care he took & as a result the slower he sharpened.

I'm afraid it didn't impress me very much.


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Re: Glue for scary sharpening

Postby Woodbloke » 20 Oct 2014, 09:13

RogerS wrote:I quite like scary sharp. The main problem I have is the edge digging in and scraping up the paper.


The problem occurs if there's a minute burr or a bit of debris trapped between the film and the bevel being honed. If there is, the film will tear if the blade is pushed or pulled. If there isn't, then the blade can be pushed and pulled across the film. Even so, if I do get a tear, I just work round it or reverse the glass plate so I use the other end - Rob
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Re: Glue for scary sharpening

Postby riclepp » 21 Oct 2014, 22:29

Must be honest, in all the time I've been using scary sharp (salute to Mr Sefton :) ), I have only had on time where a small tear occured. I use the push and pull stroke, but at an angle. I have only found it slow when flattening the backs of chisels or irons; but the honing only takes a few minutes. I also have stacks of the normal type to use, before I upgrade to the newer stuff.
I use Peter (Sefton's) trick of a piece of acetate and a large rare earth magnit to pick up all the swarf and filings every few minutes, works like a charm.

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Re: Glue for scary sharpening

Postby Peter Sefton » 24 Oct 2014, 20:38

Great news you found some of my techniques helpful Richard :!:

We trailed a lot of abrasives and backings in the school and shop before we opted for our new Industrial Scary sharp.

I teach around 150 woodworkers sharpening each year and find this the most cost effective and repeatable technique to get great sharpening results.
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Re: Glue for scary sharpening

Postby Bungle » 24 Oct 2014, 21:53

I bought some of peters self adhesive industrial sheets at his last open day in the summer. They have performed well in a busy shop and we haven't had to change the papers yet . They seem very resistant to tearing and give a fine edge.

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Re: Glue for scary sharpening

Postby Peter Sefton » 25 Oct 2014, 21:17

That's good to hear Bungle, when I was testing them a couple of years ago I gave some to a student who finished with us in July.
He started a new job as a maker the following week and when I caught up with him at our November open day he was still using the same sheet I gave him.
The only thing I don't know is if he sharpened his tools after he left us :|
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