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PostPosted: Mon Jan 01, 2018 8:37 pm 
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Got a fair bit of 75mm cellotex to cut up...
I see them Bosch insulatin blades
seem to have resonable reviews....

Anyone here used them? I see theyve a few bad reviews about serious wandering, but with jigsaws- half the time the issue is the user....
Ive a good jiggy and a fairly compeent user... worth a go, of just use a handsaw?

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PostPosted: Mon Jan 01, 2018 9:06 pm 
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Hand saws can be bought for as little as three quid and cellotex (or similar) usually has lines at 100mm spacings on it, accuracy is not required.

I've recently done a load of 100mm PIR with a £2.49 + vat duratool saw & it never occurred to me to use a jigsaw! Mind you, a mask was beneficial.


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PostPosted: Mon Jan 01, 2018 9:13 pm 
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I did use a jigsaw on 50mm only last month and it cut perfectly into place each time. I didn't change the blade from the wood one in the tool.

You will have zero problem with a jigsaw except the mess! The insulation is not strong enough to wander the blade or it did not for me!


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PostPosted: Mon Jan 01, 2018 9:50 pm 
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Hitch, I've used those blades. Didn't have any wander and you don't get all the mess that you get with a normal saw blade. Be careful with them as they are bloody sharp

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PostPosted: Mon Jan 01, 2018 10:06 pm 
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I've always used a handsaw.

A word of warning, if you have contact lenses don't get any Celotex dust in your eyes, the last (and first) bloke I saw that happen to was off work for three days afterwards when the dust got behind his contacts.

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PostPosted: Tue Jan 02, 2018 1:12 pm 
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ayjay wrote:
I've always used a handsaw.


Me too , the idea of using power tools to cut it has never occurred in all honesty. I always keep old handsaws that are struggling with wood for just such jobs as I find it does take the edge of so I would never use a brand new saw . On one job where we were using 25mm celotex we used a couple of old bread knives.


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PostPosted: Tue Jan 02, 2018 2:46 pm 
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A old jack saw is all have ever used, machine cutting, I would concerned with the fine dust


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PostPosted: Tue Jan 02, 2018 3:24 pm 
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I have always used a fine tooth handsaw and found the result very accurate and a minimum of mess.( I believe the saw was about 10 TPI)
Never entered my head to use a machine saw! Found that I could cut 'em as fast as my mate could get the sizes to me.

Davyp1


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