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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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Hi all
We got front gates made about 3 years ago and the finished gates powder coated in black. The finish was fairly matt rather than high gloss, and they have been fine up until now. When the brighter evenings came along, I began to notice they looked very dull and almost grey. So tonight I went out, armed with a bucket with Flash in it and a sponge pot scourer thing. I gave them a good wash but as they dried I realised that it has made very little difference, apart from removing a bit of grey-green dust from around the bottom. They almost look like an old car that needs T-Cut. Is this the case, and if so, would T-Cut for black cars be off any use? TIAAA Suzanne |
#2
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![]() "Suz" wrote in message ... Hi all We got front gates made about 3 years ago and the finished gates powder coated in black. The finish was fairly matt rather than high gloss, and they have been fine up until now. When the brighter evenings came along, I began to notice they looked very dull and almost grey. So tonight I went out, armed with a bucket with Flash in it and a sponge pot scourer thing. I gave them a good wash but as they dried I realised that it has made very little difference, apart from removing a bit of grey-green dust from around the bottom. They almost look like an old car that needs T-Cut. Is this the case, and if so, would T-Cut for black cars be off any use? TIAAA Suzanne If you want glossy black, then give them a coat of Hammerite Enamel Black. Lasts for years, but looks cheap and cheesy on wrought iron gates, in my personal opinion. Your gate were more than likely given a matt coat to make them look rich and antique. Were they? |
#3
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![]() We got front gates made about 3 years ago and the finished gates powder coated in black. The finish was fairly matt rather than high gloss, and they have been fine up until now. When the brighter evenings came along, I began to notice they looked very dull and almost grey. So tonight I went out, armed with a bucket with Flash in it and a sponge pot scourer thing. I gave them a good wash but as they dried I realised that it has made very little difference, apart from removing a bit of grey-green dust from around the bottom. They almost look like an old car that needs T-Cut. Is this the case, and if so, would T-Cut for black cars be off any use? TIAAA Suzanne If you want glossy black, then give them a coat of Hammerite Enamel Black. Lasts for years, but looks cheap and cheesy on wrought iron gates, in my personal opinion. Your gate were more than likely given a matt coat to make them look rich and antique. Were they? I choose the matt black because the glossy black reminded me too much of the council's bins - and I agree is a bit cheesy too. But the problem is this white 'bloom' that gives an extremely dull look and makes them look grey rather than black. I don't want very shiny, but I would like them as black as possible. Maybe the glossy finish is more hard wearing? Would Hammerite stick to powder coating? And I am ****ed off as the whole point of the powder coating was to avoid any painting. And it wasn't cheap as we had 7 individual bits to get done. Suz |
#4
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![]() "Suz" wrote in message ... We got front gates made about 3 years ago and the finished gates powder coated in black. The finish was fairly matt rather than high gloss, and they have been fine up until now. When the brighter evenings came along, I began to notice they looked very dull and almost grey. So tonight I went out, armed with a bucket with Flash in it and a sponge pot scourer thing. I gave them a good wash but as they dried I realised that it has made very little difference, apart from removing a bit of grey-green dust from around the bottom. They almost look like an old car that needs T-Cut. Is this the case, and if so, would T-Cut for black cars be off any use? TIAAA Suzanne If you want glossy black, then give them a coat of Hammerite Enamel Black. Lasts for years, but looks cheap and cheesy on wrought iron gates, in my personal opinion. Your gate were more than likely given a matt coat to make them look rich and antique. Were they? I choose the matt black because the glossy black reminded me too much of the council's bins - and I agree is a bit cheesy too. But the problem is this white 'bloom' that gives an extremely dull look and makes them look grey rather than black. I don't want very shiny, but I would like them as black as possible. Maybe the glossy finish is more hard wearing? Would Hammerite stick to powder coating? And I am ****ed off as the whole point of the powder coating was to avoid any painting. And it wasn't cheap as we had 7 individual bits to get done. Suz The powder coating is expensive, but it does look great. The Hammerite range comes in a matt black as well, so you could use that instead of shiny gloss. |
#5
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On Wed, 11 May 2005 17:58:43 GMT, "BigWallop"
wrote: If you want glossy black, then give them a coat of Hammerite Enamel Black. It doesn't last ten minutes on thin steel gates (Hammerite is too stiff, and doesn't like the bending). Over powder coat you won't even get five minutes. |
#6
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![]() "Andy Dingley" wrote in message ... On Wed, 11 May 2005 17:58:43 GMT, "BigWallop" wrote: If you want glossy black, then give them a coat of Hammerite Enamel Black. It doesn't last ten minutes on thin steel gates (Hammerite is too stiff, and doesn't like the bending). Over powder coat you won't even get five minutes. Gates are handmade and aren't thin - the metal used is about twice standard gates - a friend's husband has a forge in his backyard for a hobby, so money went into the materials. Any ideas on the dulling? |
#7
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On Wed, 11 May 2005 23:18:38 +0100, "Suz" wrote:
Gates are handmade and aren't thin If you can move the weight, they're thin! Hammerite is _rubbish_ stuff, that has never worked anything like as well as its reputation claimed. Smoothrite is little better. One particular defect in it is that it's very stiff and has poor adhesion - so any bending of the substrate (which is pretty inevitable on a gate) encourages it to crack off. Any ideas on the dulling? I hate powder coat - I've never seen it look good when it's more than a year or two old. This crappy "matt" finish is even worse - it's just not leaving it in the fuser for long enough. Unless you've done the ironwork carefully and either broken all the sharp edges or made it from hot-rolled, you can see problems with splitting along the edges too. Then you get the usual powder-coat problem, which is rusting underneath. But you could try silicone oil pervert polish - as used on rubberwear. |
#8
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#9
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Suz wrote:
We got front gates made about 3 years ago and the finished gates powder coated in black. The finish was fairly matt rather than high gloss, and they have been fine up until now. When the brighter evenings came along, I began to notice they looked very dull and almost grey. Black boot polish? T-cut? Clean it up and spray on black cellulose? |
#10
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![]() "Suz" wrote in message ... Hi all We got front gates made about 3 years ago and the finished gates powder coated in black. The finish was fairly matt rather than high gloss, and they have been fine up until now. When the brighter evenings came along, I began to notice they looked very dull and almost grey. So tonight I went out, armed with a bucket with Flash in it and a sponge pot scourer thing. I gave them a good wash but as they dried I realised that it has made very little difference, apart from removing a bit of grey-green dust from around the bottom. They almost look like an old car that needs T-Cut. Is this the case, and if so, would T-Cut for black cars be off any use? Might be worth trying some of that Back To Black stuff used for car bumpers Regards Jeff |
#11
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In article , Jeff
writes "Suz" wrote in message .. . Hi all We got front gates made about 3 years ago and the finished gates powder coated in black. The finish was fairly matt rather than high gloss, and they have been fine up until now. When the brighter evenings came along, I began to notice they looked very dull and almost grey. So tonight I went out, armed with a bucket with Flash in it and a sponge pot scourer thing. I gave them a good wash but as they dried I realised that it has made very little difference, apart from removing a bit of grey-green dust from around the bottom. They almost look like an old car that needs T-Cut. Is this the case, and if so, would T-Cut for black cars be off any use? Might be worth trying some of that Back To Black stuff used for car bumpers I was going to suggest that, but it doesn't last very long. It's mostly silicone oil which is good for a quick tarting up but would weather off quickly. You'd have no chance of painting on top of it either, if you later wanted to try paint. -- Tim Mitchell |
#12
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On Thu, 12 May 2005 07:16:48 +0100, Paul Mc Cann
wrote: Powder doesn't really differ from ordinary paint with the exception of the use of an electrostatic charge to assist the particles adhere to the surface prior to stove enamelling. That's electrostatic spraying. You're applying what's basically standard paint, but the static charge improves coverage especially round the back, on corners and in shadowed areas. For flat sheet it's no better than a simple spraygun, but it's a good improvement for complex shapes (such as gates). Powder coating is "coating with a powder", pretty much by definition. A slightly sticky _powder_ is sprayed with an electrostatic gun, then it's heated in a stove enamelling oven and only then does the powder fuse. If you limit this fusion time, there's enough fusion to make it stick, but not enough to make the surface glossy. You're thus a bit at risk of operator skill here - too little fusion gives a guaranteed matt without shiny patches, but it can also be porous (usually on the bottom edges of rails) Dipping is similar to powder coating, but it's done by dipping in a fluidised bed of powder (a bucket, with air blown through the bottom). It's reasonable to describe either as "powder coating", unless specified in more detail. The problem with powder coating is similar to that of Hammerite - the coating itself is far stronger than the adhesion to the substrate. If you annoy it, it loses the bond and you get the coating peeling off wholesale. Dipping gives a thicker coat, so it's more prone to this. However sprayed powder coatings can be thin on edges, so they may be more susceptible to wear and the first delamination starting. Personally I'd much rather hot-dip galvanise a gate, then let it weather on its own. -- Cats have nine lives, which is why they rarely post to Usenet. |
#13
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#14
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On Thu, 12 May 2005 20:01:11 +0100, Paul Mc Cann
wrote: The powder is only a type of paint in a powder form. Its a mixture of resins and colouring compounds. (i.e.) Paint. It flows out when heated. Paint is generally taken to mean a liquid, with either a resin which cures on exposure to air, or a solvent which evaporates. If you want to term a non-flowing, non-curing, non-dissolved powder as "paint" then you can of course have words mean anything you like. But that's like Alice talking to Humpty Dumpty. Its not rocket science any half trained operator can control the application. But you need a conscientious operator. Skimping on spray time around the corners, or fusing it for a bit too short a time to stop glossies, all improve throughput but they reduce quality. Personally we use several different commercial sprayers to spray and stove enamel steel frames, I'm loath to say that "stove enamel" can't apply to powder coating, because it's certainly stoved, but the name is usually applied to a wet paint process that's stoved, not powder. No. Your confused again. Dipping is mereley dunking in paint. Of course it is. But we're talking about powder coating, not paint. You can obviously dip in paint (your paintbrushes), or in liquid rubbers (plier handles) or in powder. Shouting "You're wrong, I was talking about Nutella dip, yah boo" is just playground sophistry. And for that matter, you can powder dip either hot or cold (electrostatically). Hot dip is the one for the thick coatings, electrostatic dip is the one that can have problems with sharp edges, if you're too careless withdrawing from the bath (too roughly, too early). Electrostatically applied coatings excel on edges due to the nature of the application Yes, but the flow afterwards tends to reduce this. Over stove a powder coat and the edges thin out as surface tension pulls the coating inwards. |
#15
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We got front gates made about 3 years ago and the finished gates powder
coated in black. The finish was fairly matt rather than high gloss, and they have been fine up until now. When the brighter evenings came along, I began to notice they looked very dull and almost grey. So tonight I went out, armed with a bucket with Flash in it and a sponge pot scourer thing. I gave them a good wash but as they dried I realised that it has made very little difference, apart from removing a bit of grey-green dust from around the bottom. They almost look like an old car that needs T-Cut. Is this the case, and if so, would T-Cut for black cars be off any use? A further point to this: if you scratch a tiny area with your nail, it looks like there is a shiny surface underneath. the "scratch" mark stays there, but if you rub it with your thumb is goes and looks evenly dull again. Whatever this top layer is, is seems to smudge around in a circle easily. This has two implications: 1. This layer may be removeable if it is identifiable, but what is it? 2. If it can't be removed, will it cause a problem for painting over? Any ideas on these specific points please? Suzanne |
#16
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#17
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Oi you 2!
What about a direct answer to my points rather than a discussion on the vagaries of powder coating and associated terms? See the last post. |
#18
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Suz wrote:
We got front gates made about 3 years ago and the finished gates powder coated in black. The finish was fairly matt rather than high gloss, and they have been fine up until now. When the brighter evenings came along, I began to notice they looked very dull and almost grey. So tonight I went out, armed with a bucket with Flash in it and a sponge pot scourer thing. I gave them a good wash but as they dried I realised that it has made very little difference, apart from removing a bit of grey-green dust from around the bottom. They almost look like an old car that needs T-Cut. Is this the case, and if so, would T-Cut for black cars be off any use? A further point to this: if you scratch a tiny area with your nail, it looks like there is a shiny surface underneath. the "scratch" mark stays there, but if you rub it with your thumb is goes and looks evenly dull again. Whatever this top layer is, is seems to smudge around in a circle easily. This has two implications: 1. This layer may be removeable if it is identifiable, but what is it? 2. If it can't be removed, will it cause a problem for painting over? Any ideas on these specific points please? Suzanne How about complaining to the suppliers of the paint finish? |
#19
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On Fri, 13 May 2005 18:48:05 +0100, "Suz" wrote:
A further point to this: if you scratch a tiny area with your nail, it looks like there is a shiny surface underneath. the "scratch" mark stays there, but if you rub it with your thumb is goes and looks evenly dull again. Whatever this top layer is, is seems to smudge around in a circle easily. This has two implications: 1. This layer may be removeable if it is identifiable, but what is it? 2. If it can't be removed, will it cause a problem for painting over? Any ideas on these specific points please? Suzanne Hi, Sounds like the paint is chalking due to UV, is it as faded on the underside of the gate or not? Maybe a gentle scrub with T-Cut or something harsher like Ajax or Vim would remove it. If so a try on somewhere inconspiciosu would be best, also not ploshing across the corners of the metalwork. cheers, Pete. |
#21
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Posted to uk.d-i-y
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replying to Suz, RB13013 wrote:
I had powder coated gates installed in Oct 2015. I have tried various way to clean them but nothing seems to work. This Morning I gave the gates a scrub with soapy water and then hosed them off - no good left the black coating dull with grey streaks. This afternoon I made a Mixture of used sunflower oil and white spirit. 50/50, poured into a hand spray, sprayed onto the gates and used a paint brush to coat the nooks n crannies. - Looks a treat. I last did this about a year ago but using only sunflower oil. Hope this helps you. -- for full context, visit https://www.homeownershub.com/uk-diy...ng-177985-.htm |
#22
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Posted to uk.d-i-y
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posted on May 11, 2005, 5:41 pm
Brian -- ----- -- This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please Note this Signature is meaningless.! "RB13013" m wrote in message ... replying to Suz, RB13013 wrote: I had powder coated gates installed in Oct 2015. I have tried various way to clean them but nothing seems to work. This Morning I gave the gates a scrub with soapy water and then hosed them off - no good left the black coating dull with grey streaks. This afternoon I made a Mixture of used sunflower oil and white spirit. 50/50, poured into a hand spray, sprayed onto the gates and used a paint brush to coat the nooks n crannies. - Looks a treat. I last did this about a year ago but using only sunflower oil. Hope this helps you. -- for full context, visit https://www.homeownershub.com/uk-diy...ng-177985-.htm |
#23
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Posted to uk.d-i-y
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In article , briang1
@blueyonder.co.uk says... I had powder coated gates installed in Oct 2015. I think your time machine has developed a fault, Brian, or Home Owners Club has because that post is about something which, according to you, occurred ten years in the future! Quote "I had powder coated gates installed in Oct 2015." -- Terry --- This email has been checked for viruses by AVG. https://www.avg.com |
#24
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Posted to uk.d-i-y
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On Wed, 22 May 2019 16:43:46 +0100
Terry Casey wrote: In article , briang1 @blueyonder.co.uk says... I had powder coated gates installed in Oct 2015. I think your time machine has developed a fault, Brian, or Home Owners Club has because that post is about something which, according to you, occurred ten years in the future! Quote "I had powder coated gates installed in Oct 2015." Which was replying to a post made on May 11, 2005 |
#25
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Posted to uk.d-i-y
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On 22/05/2019 16:43, Terry Casey wrote:
In article , briang1 @blueyonder.co.uk says... I had powder coated gates installed in Oct 2015. I think your time machine has developed a fault There is no fault. The OP posted in 2005. |
#26
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Posted to uk.d-i-y
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Was not that what the post was saying, at least I commented on that in a
post on that site. I think its finally lost it. Bit like Hal in 2001. Brian -- ----- -- This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please Note this Signature is meaningless.! "Rob Morley" wrote in message news:20190601223729.7705c42f@Mars... On Wed, 22 May 2019 16:43:46 +0100 Terry Casey wrote: In article , briang1 @blueyonder.co.uk says... I had powder coated gates installed in Oct 2015. I think your time machine has developed a fault, Brian, or Home Owners Club has because that post is about something which, according to you, occurred ten years in the future! Quote "I had powder coated gates installed in Oct 2015." Which was replying to a post made on May 11, 2005 |
#27
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Posted to uk.d-i-y
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Yes as I say, most odd.
Maybe its the heat? Brian -- ----- -- This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please Note this Signature is meaningless.! "Fredxx" wrote in message ... On 22/05/2019 16:43, Terry Casey wrote: In article , briang1 @blueyonder.co.uk says... I had powder coated gates installed in Oct 2015. I think your time machine has developed a fault There is no fault. The OP posted in 2005. |
#28
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Posted to uk.d-i-y
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On Sun, 2 Jun 2019 07:48:22 +0100
"Brian Gaff" wrote: Was not that what the post was saying, at least I commented on that in a post on that site. I think its finally lost it. Bit like Hal in 2001. Brian Daisy, Daisy ... |
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