Eddie Walsh
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+xWell, hanaldo and me both tried convincing you not to use powder bound mat. Yes Thanks, Everyone advised after I had bought it and had already tried it ??, so why would ( Mat Supposedly a Staff Expert ??) on here or anyone else suggest using Powderbound ?? I suppose if you want to F##k someone over that is one way to do it, certainly got me, Regards DM
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oekmont
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Well, hanaldo and me both tried convincing you not to use powder bound mat.
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Eddie Walsh
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+x+x+xHow i do it: 166g Glass filament fabric for the first layer And then alternating between 600g roving fabric and 600g biaxial until the desired thickness is achieved. If you first use putty all like mat suggests, the first lighter cloth should not be necessary. But a medium weight like 280 should be ideal to minimise print through. Everything with "Roving" in it's description should usually be to rough in it's texture. Except rovings itself... Everything with "mat" usually hints that there is some csm content, as far as i know. I advice a standard medium weight glass filament fabric. between 200 and 300g. Hi and Thanks again, lots of new suggestions ?? Glass Filament Fabric?, Roving Fabric ? and Biaxial ?? what does all that mean. On my Mould so far I have put on 2 good coats of Tooling Gel, and just filled all the tight corners with Moulding paste, and 6 layers of 300Gm Powder GSM , and this afternoon I have ordered a 25 Mtr Roll of 280 GSM Woven Glass cloth, so will that do the trick, again Thanks for all your help I will get there eventually, Regards DM Hey eddie! Any updates on airbox? Hi, no very disappointing results, the advice I got on here was now helpfull at all as I first tried the Powderbound mat which was an absolute nightmare to work with just would not sit down and was full of air pockets which took hours of rolling to try and get rid of and so never looked perfect so I am sure if I tried to cure in an oven it would just explode, so really a waste of nearly £1k materials, so now I am looking for a Pro to make it for me, live and learn, Regards DM
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Furkan Yahsi
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+x+xHow i do it: 166g Glass filament fabric for the first layer And then alternating between 600g roving fabric and 600g biaxial until the desired thickness is achieved. If you first use putty all like mat suggests, the first lighter cloth should not be necessary. But a medium weight like 280 should be ideal to minimise print through. Everything with "Roving" in it's description should usually be to rough in it's texture. Except rovings itself... Everything with "mat" usually hints that there is some csm content, as far as i know. I advice a standard medium weight glass filament fabric. between 200 and 300g. Hi and Thanks again, lots of new suggestions ?? Glass Filament Fabric?, Roving Fabric ? and Biaxial ?? what does all that mean. On my Mould so far I have put on 2 good coats of Tooling Gel, and just filled all the tight corners with Moulding paste, and 6 layers of 300Gm Powder GSM , and this afternoon I have ordered a 25 Mtr Roll of 280 GSM Woven Glass cloth, so will that do the trick, again Thanks for all your help I will get there eventually, Regards DM Hey eddie! Any updates on airbox?
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Eddie Walsh
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Group: Forum Members
Posts: 52,
Visits: 294
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+xHow i do it: 166g Glass filament fabric for the first layer And then alternating between 600g roving fabric and 600g biaxial until the desired thickness is achieved. If you first use putty all like mat suggests, the first lighter cloth should not be necessary. But a medium weight like 280 should be ideal to minimise print through. Everything with "Roving" in it's description should usually be to rough in it's texture. Except rovings itself... Everything with "mat" usually hints that there is some csm content, as far as i know. I advice a standard medium weight glass filament fabric. between 200 and 300g. Hi and Thanks again, lots of new suggestions ?? Glass Filament Fabric?, Roving Fabric ? and Biaxial ?? what does all that mean. On my Mould so far I have put on 2 good coats of Tooling Gel, and just filled all the tight corners with Moulding paste, and 6 layers of 300Gm Powder GSM , and this afternoon I have ordered a 25 Mtr Roll of 280 GSM Woven Glass cloth, so will that do the trick, again Thanks for all your help I will get there eventually, Regards DM
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oekmont
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Group: Forum Members
Posts: 550,
Visits: 27K
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How i do it: 166g Glass filament fabric for the first layer And then alternating between 600g roving fabric and 600g biaxial until the desired thickness is achieved.
If you first use putty all like mat suggests, the first lighter cloth should not be necessary. But a medium weight like 280 should be ideal to minimise print through. Everything with "Roving" in it's description should usually be to rough in it's texture. Except rovings itself... Everything with "mat" usually hints that there is some csm content, as far as i know. I advice a standard medium weight glass filament fabric. between 200 and 300g.
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Eddie Walsh
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Group: Forum Members
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+xThat should be just a problem of using the wrong words/combination. There are eBay sellers for almost every weave you can think of. And for shure such common types. Roving weaves are heavy cloth with whole rovings as threats. they are great to get a lot of reinforcement onto your laminate quickly, but they are not good as first layer, as they leave a texture through the tooling coat, because of their rough surface. I do not understand what you are advising,what do I need Roving or Cloth, Thanks Regards DM
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oekmont
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Group: Forum Members
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That should be just a problem of using the wrong words/combination. There are eBay sellers for almost every weave you can think of. And for shure such common types.
Roving weaves are heavy cloth with whole rovings as threats. they are great to get a lot of reinforcement onto your laminate quickly, but they are not good as first layer, as they leave a texture through the tooling coat, because of their rough surface.
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Steve Broad
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+x+x+xAs far as I read, he did advice you to use 280g/m^2 woven material on top of the high temp moulding paste as a coupling coat. No word of csm. Although he didn't advice against it either. When trying new material, a quick test always works best. In case of your csm mat, a test, if it gets plyable when impregnated with epoxy. the powder test doesn't seem reliable to me. My csm is also powdery, but definitely not epoxy compatible. Below is the last line in the shopping list, so I just looked at what I got and went with the Powder bound CSM ??? Regards DM Choice of: 300gsm Powder Bound Chopped Strand Mat or/ 280gsm Woven Glass Cloth I have just been looking on Ebay for some "280 GSM Woven Glass cloth", and all I seem to find is " Woven roving mat" is that the same thing, as I do have some Woven Roving Mat which I have used for Poleyester Molds and Moldings ??, Regards DM https://www.easycomposites.co.uk/high-quality-gp-polyester-resin
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Eddie Walsh
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Group: Forum Members
Posts: 52,
Visits: 294
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+x+xAs far as I read, he did advice you to use 280g/m^2 woven material on top of the high temp moulding paste as a coupling coat. No word of csm. Although he didn't advice against it either. When trying new material, a quick test always works best. In case of your csm mat, a test, if it gets plyable when impregnated with epoxy. the powder test doesn't seem reliable to me. My csm is also powdery, but definitely not epoxy compatible. Below is the last line in the shopping list, so I just looked at what I got and went with the Powder bound CSM ??? Regards DM Choice of: 300gsm Powder Bound Chopped Strand Mat or/ 280gsm Woven Glass Cloth I have just been looking on Ebay for some "280 GSM Woven Glass cloth", and all I seem to find is " Woven roving mat" is that the same thing, as I do have some Woven Roving Mat which I have used for Poleyester Molds and Moldings ??, Regards DM
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