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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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blackboard paint
Hi. Can anyone tell me what is the difference between matt black paint
and blackboard paint? I already have this matt black paint: http://www.international-paints.co.u...matt_black.jsp How is it different from this blackboard paint? http://www.international-paints.co.u...oard_paint.jsp I would like to make a blackboard and was wondering if I could save a trip to the shops by using what I already have? Thanks in advance. |
#2
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blackboard paint
On Jan 14, 4:23*pm, Fred wrote:
Hi. Can anyone tell me what is the difference between matt black paint and blackboard paint? I already have this matt black paint:http://www.international-paints.co.u..._coat_matt_bla... How is it different from this blackboard paint?http://www.international-paints.co.u..._coat_blackboa... I would like to make a blackboard and was wondering if I could save a trip to the shops by using what I already have? Thanks in advance. course you can. Worst case is it scratches up and you end up getting the right stuff. NT |
#3
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blackboard paint
On Thu, 14 Jan 2010 16:23:41 +0000, Fred wrote:
Hi. Can anyone tell me what is the difference between matt black paint and blackboard paint? I already have this matt black paint: http://www.international-paints.co.u...matt_black.jsp How is it different from this blackboard paint? http://www.international-paints.co.u...oard_paint.jsp Hmm, wonder if the kosher stuff is thinner? I got some black paint for our stairs that's supposedly very hard wearing, and it's really runny stuff - I suspect it acts more as a stain than a layer of paint. |
#4
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blackboard paint
In article ,
Fred wrote: Hi. Can anyone tell me what is the difference between matt black paint and blackboard paint? I already have this matt black paint: http://www.international-paints.co.u...matt_black.jsp How is it different from this blackboard paint? http://www.international-paints.co.u...oard_paint.jsp From memory (I made a few blackboard and easels yonks back for a local school) proper blackboard paint is less black - more dark grey/green. It also was more matt than the matt paint I used first. Very very matt... Normal matt paint just didn't seem to work as well with the chalk - leaving a "crayon on gloss" type effect if you get what I mean. The proper stuff worked really well but as someone else said, was thin and needed a few coats. Then you rub chalk all over it before using it (stick of chalk on it's side and then rub it in with a duster) or whatever you write on it first will be there for a long time :-) I would like to make a blackboard and was wondering if I could save a trip to the shops by using what I already have? Thanks in advance. Give it ago if you have matt - as I say, the matt black I tried was disappointing Darren |
#5
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blackboard paint
In an earlier contribution to this discussion,
Fred wrote: Hi. Can anyone tell me what is the difference between matt black paint and blackboard paint? I already have this matt black paint: http://www.international-paints.co.u...matt_black.jsp How is it different from this blackboard paint? http://www.international-paints.co.u...oard_paint.jsp I would like to make a blackboard and was wondering if I could save a trip to the shops by using what I already have? Thanks in advance. If you read the descriptions in the two links above, they are *very* similar - including a bit for the ordinary matt black which says "ideal . . for blackboards"! I'd just try it. If it doesn't work for any reason, you can always over-paint it with the 'proper' stuff. -- Cheers, Roger ______ Email address maintained for newsgroup use only, and not regularly monitored.. Messages sent to it may not be read for several weeks. PLEASE REPLY TO NEWSGROUP! |
#6
Posted to uk.d-i-y
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blackboard paint
Fred wrote:
Hi. Can anyone tell me what is the difference between matt black paint and blackboard paint? I already have this matt black paint: http://www.international-paints.co.u...matt_black.jsp How is it different from this blackboard paint? http://www.international-paints.co.u...oard_paint.jsp I would like to make a blackboard and was wondering if I could save a trip to the shops by using what I already have? Thanks in advance. It's not just "matt black" - it's "course black". Blackboard paint is rough like fine sandpaper. It is also very hard wearing and totally waterproof (you will want to clean off the chalk with water now and then). From what I remember, it also seems to use an unusual solvent. I'm not sure if that has anything to do with its roughness. -- Jason |
#7
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blackboard paint
Fred wrote:
Hi. Can anyone tell me what is the difference between matt black paint and blackboard paint? I already have this matt black paint: http://www.international-paints.co.u...matt_black.jsp How is it different from this blackboard paint? http://www.international-paints.co.u...oard_paint.jsp I would like to make a blackboard and was wondering if I could save a trip to the shops by using what I already have? Thanks in advance. Would the politically incorrect please note that there is no such thing as 'blackboard paint'. It is chalkboard paint. OTOH there are whiteboards and whiteboard markers :-) Malcolm (ducks flames) |
#8
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blackboard paint
On 14 Jan, 16:23, Fred wrote:
Hi. Can anyone tell me what is the difference between matt black paint and blackboard paint? Matt black paint is gloss black paint, with enough filler in it to make it look matt for reflected light, hidden under a smooth-feeling surface Blackboard paint is similar, but with sufficient voodoo added (maybe just more of the same filler) that it looks the same, but the surface is mechanically rough enough to allow chalk to write on it. If you paint a blackboard with matt black paint, you get something that looks exactly like a blackboard, except that the chalk won't stick! You can also paint something with blackboard paint, then wax polish over it (e.g. MDF video racking shelves). This gives you a very black semi-matt surface (good for Goths and '80s retro fans) that looks good and wears better than plain matt paint. |
#9
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blackboard paint
On Thu, 14 Jan 2010 19:35:17 -0000, "Roger Mills"
wrote: I'd just try it. If it doesn't work for any reason, you can always over-paint it with the 'proper' stuff. Thanks everyone. I had a reply from International Paints saying the two were very similar but they had not tried chalk on the matt black paint, so like you, they suggested try a small area and see. They did also say the blackboard paint was specially formulated to hold chalk on the surface, as other posters have said. I will let you know what happens, when I get round to it. |
#10
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blackboard paint
In article ,
Fred wrote: Thanks everyone. ... Fred: my question is: where you gonna get your chalk? Eh? I worked in a University for a long time. About 10 years ago I realised that there wasn't a stick of chalk in the place. John |
#11
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blackboard paint
In article ,
Owain wrote: On 16 Jan, 22:10, John L wrote: Fred: *my question is: *where you gonna get your chalk? *Eh? http://www.ehow.com/how_5191558_make...ard-chalk.html or buy it from Rapid http://www.rapidonline.com/productin...x?catref=76844 Or, for somewhere on the highstreet, the Early Learning Centre certainly sold it recently. I suspect they still do. Darren |
#12
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blackboard paint
In article ,
Owain wrote: On 17 Jan, 08:04, (D.M.Chapman) wrote: From my younger days I seem to remember that play chalk was a lot 'grittier' than teachers' chalk, as well as the sticks being thinner and breaking more easily. Dunno - SWMBO didn't complain and being a teacher she is used to school chalk. Seemed ok to me but I'm hardly and expert Darren |
#13
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blackboard paint
On 17 Jan, 14:41, Owain wrote:
From my younger days I seem to remember that play chalk was a lot 'grittier' than teachers' chalk, as well as the sticks being thinner and breaking more easily. "School" chalk is usually anti-dust, which is a coating over the sticks. This has a detrimental effect on fingernails, making them brittle one reason why teachers had short fingernails. Nowadays I mostly use french chalk (welding shop), as it draws on hot steel. |
#14
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blackboard paint
On 14 Jan, 23:32, Malcolm wrote:
Would the politically incorrect please note that there is no such thing as 'blackboard paint'. *It is chalkboard paint. OTOH there are whiteboards and whiteboard markers :-) ITYF they're called 'penboards' by the PC brigade, though the pens I have in front of me just say 'Dry Wipe Marker', conveniently avoiding the mention of any type or colour of board. |
#15
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blackboard paint
On Mon, 18 Jan 2010 13:45:42 -0800, pcb1962
wibbled: On 14 Jan, 23:32, Malcolm wrote: Would the politically incorrect please note that there is no such thing as 'blackboard paint'. Â*It is chalkboard paint. OTOH there are whiteboards and whiteboard markers :-) ITYF they're called 'penboards' by the PC brigade, though the pens I have in front of me just say 'Dry Wipe Marker', conveniently avoiding the mention of any type or colour of board. Ours were called "Nobo", helpfully pronouced by Dennis (our physics teacher's nickname" as "KNOB-O" just to ensure even the dimmest pupil didn't fail to spot the hilarity ;- -- Tim Watts Managers, politicians and environmentalists: Nature's carbon buffer. |
#16
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blackboard paint
On Mon, 18 Jan 2010 22:07:30 +0000 (UTC), Tim Watts
wrote: Ours were called "Nobo", helpfully pronouced by Dennis (our physics teacher's nickname" as "KNOB-O" just to ensure even the dimmest pupil didn't fail to spot the hilarity ;- How did he pronounce "No"? |
#17
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blackboard paint
On Fri, 15 Jan 2010 01:21:41 GMT, wrote:
And chalkboards are verboten on H&S grounds anyway.# eh? -- |
#18
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blackboard paint, an UPDATE
On Fri, 15 Jan 2010 03:40:14 -0800 (PST), Andy Dingley
wrote: Blackboard paint is similar, but with sufficient voodoo added (maybe just more of the same filler) that it looks the same, but the surface is mechanically rough enough to allow chalk to write on it. If you paint a blackboard with matt black paint, you get something that looks exactly like a blackboard, except that the chalk won't stick! Hello, A long time ago, I asked whether blackboard paint and matt black paint were the same. The confusion was because International paints sold two different tins but then contradicted themselves by advertising the matt black paint as "suitable for blackboards"! I asked International what the difference was between the two and even they didn't know! It was suggested here that blackboard paint was more abrasive, so that the chalk rubbed off onto it. Someone else said try some and see and let us know, so sorry for the delay but I have finally tried rolling some matt black paint onto an off cut of mdf and the chalk works perfectly. Since then I have seen a number of other manufacturers selling one tin for both matt black and blackboard use, so I think e can conclude that the two are pretty much the same. HTH |
#19
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blackboard paint, an UPDATE
"Fred" wrote in message ... On Fri, 15 Jan 2010 03:40:14 -0800 (PST), Andy Dingley wrote: Blackboard paint is similar, but with sufficient voodoo added (maybe just more of the same filler) that it looks the same, but the surface is mechanically rough enough to allow chalk to write on it. If you paint a blackboard with matt black paint, you get something that looks exactly like a blackboard, except that the chalk won't stick! Hello, A long time ago, I asked whether blackboard paint and matt black paint were the same. The confusion was because International paints sold two different tins but then contradicted themselves by advertising the matt black paint as "suitable for blackboards"! I asked International what the difference was between the two and even they didn't know! It was suggested here that blackboard paint was more abrasive, so that the chalk rubbed off onto it. Someone else said try some and see and let us know, so sorry for the delay but I have finally tried rolling some matt black paint onto an off cut of mdf and the chalk works perfectly. Since then I have seen a number of other manufacturers selling one tin for both matt black and blackboard use, so I think e can conclude that the two are pretty much the same. HTH How do they compare for marks? I recall things I used to paint with matt black, looked good so long as one didn't brush against them: didn't actually need chalk to write on them! S |
#20
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blackboard paint, an UPDATE
...Since then I have seen a number of other manufacturers
selling one tin for both matt black and blackboard use, so I think e can conclude that the two are pretty much the same. Hmmm - dunno about that Fred: I have an old tin of blackboard paint, and whereas ordinary paint would solidify over the course of time (in this case: about 30 years! :-) ) this paint has separated out, into a liquid layer of thin black stuff, over what seems to be black concrete. I'm impressed with it: I'd like to make a blackboard now, just so I could try it out. John |
#21
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blackboard paint, an UPDATE
Another John wrote:
...Since then I have seen a number of other manufacturers selling one tin for both matt black and blackboard use, so I think e can conclude that the two are pretty much the same. Hmmm - dunno about that Fred: I have an old tin of blackboard paint, and whereas ordinary paint would solidify over the course of time (in this case: about 30 years! :-) ) this paint has separated out, into a liquid layer of thin black stuff, over what seems to be black concrete. I'm impressed with it: I'd like to make a blackboard now, just so I could try it out. John I guess if blackboard made of matt paint wouldnt last very long in a school with lots of writing on and rubbing off. [g] |
#22
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blackboard paint, an UPDATE
On Mon, 14 Jun 2010 17:34:08 +0100, Another John
wrote: I have an old tin of blackboard paint, and whereas ordinary paint would solidify over the course of time (in this case: about 30 years! :-) ) this paint has separated out, into a liquid layer of thin black stuff, over what seems to be black concrete. Trying to answer two posts at once: I haven't got a tin of blackboard paint, only a tin of matt black paint so I haven't been able to make two boards and compare them for scuff-resistance. So far I haven't noticed a problem but it is early days and not in a position where it gets knocked easily. Nor have I had the tins for thirty years, so I can't say if there are any differences further down the line. I certainly don't consider myself an expert so I am happy to be proven wrong. This all began when I bought a tin of International black matt paint which said "suitable for blackboards" but then I noticed they sold a special blackboard paint. I asked them what the difference was and even they weren't sure! Since then I have seen some shops selling one tin (of other brands) that is labeled as both matt black/blackboard so for those manufacturers the matt black and blackboard paint is one and the same. Clearly with other manufacturers, e.g. International, they are two different products. The suggestions here that blackboard paint should contain an abrasive made sense and perhaps that is the sediment you saw? But who knows how the formulations have changed in the last thirty years? As far as the international paints go, neither they nor I could really tell a difference but YMMV! I painted onto mdf with a roller if that makes any difference? |
#23
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blackboard paint, an UPDATE
On Mon, 21 Jun 2010 22:46:36 +0100, Fred
wrote: On Mon, 14 Jun 2010 17:34:08 +0100, Another John wrote: I have an old tin of blackboard paint, and whereas ordinary paint would solidify over the course of time (in this case: about 30 years! :-) ) this paint has separated out, into a liquid layer of thin black stuff, over what seems to be black concrete. Trying to answer two posts at once: I haven't got a tin of blackboard paint, only a tin of matt black paint so I haven't been able to make two boards and compare them for scuff-resistance. So far I haven't noticed a problem but it is early days and not in a position where it gets knocked easily. Nor have I had the tins for thirty years, so I can't say if there are any differences further down the line. I certainly don't consider myself an expert so I am happy to be proven wrong. This all began when I bought a tin of International black matt paint which said "suitable for blackboards" but then I noticed they sold a special blackboard paint. I asked them what the difference was and even they weren't sure! Since then I have seen some shops selling one tin (of other brands) that is labeled as both matt black/blackboard so for those manufacturers the matt black and blackboard paint is one and the same. Clearly with other manufacturers, e.g. International, they are two different products. The suggestions here that blackboard paint should contain an abrasive made sense and perhaps that is the sediment you saw? But who knows how the formulations have changed in the last thirty years? As far as the international paints go, neither they nor I could really tell a difference but YMMV! I painted onto mdf with a roller if that makes any difference? Of course you aren't allowed by the PC police to have 'blackboards' these days... ;--) I'd have thought that blackboard paint would contain some material much harder than chalk to break down the chalkstick without being degraded itself. In reality very few 'blackboards' were actually totally black, especially after being wiped by those unfortunate school pupils nominated to "clean the board" :-) Are roller blackboards such as molished by 'Wilson & Garden' still in use, or are they all now replaced by those 'interactive' white boards (which sound just as much non-PC) -- Frank Erskine |
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