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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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Hairline crack
What is the easiest way to seal with a hairline crack in the overskim of a
plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) |
#2
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Hairline crack
On Saturday, 13 April 2019 09:35:27 UTC+1, DerbyBorn wrote:
What is the easiest way to seal with a hairline crack in the overskim of a plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) filler & a finger. Do not rake it out, that always makes it worse, wastes time & achieves nothing. NT |
#3
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Hairline crack
Once many years ago a bloke I knew fixed it with... Balsawood cement and a
finger. 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.! wrote in message ... On Saturday, 13 April 2019 09:35:27 UTC+1, DerbyBorn wrote: What is the easiest way to seal with a hairline crack in the overskim of a plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) filler & a finger. Do not rake it out, that always makes it worse, wastes time & achieves nothing. NT |
#4
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Hairline crack
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#6
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Hairline crack
DerbyBorn Wrote in message:
What is the easiest way to seal with a hairline crack in the overskim of a plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) Rake it out if you like, to allow filler to get down to the bottom of the crack & adhere to each side & the base. Filler "daubed on" with a finger tends to just rest on the surface, doesn't adhere to the sides & falls out in short order. Ultimately what caused it to crack will crack it again unless addressed. -- Jim K ----Android NewsGroup Reader---- http://usenet.sinaapp.com/ |
#7
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Hairline crack
In article ,
Jim K.. wrote: DerbyBorn Wrote in message: What is the easiest way to seal with a hairline crack in the overskim of a plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) Rake it out if you like, to allow filler to get down to the bottom of the crack & adhere to each side & the base. Filler "daubed on" with a finger tends to just rest on the surface, doesn't adhere to the sides & falls out in short order. Ultimately what caused it to crack will crack it again unless addressed. I've got an old ceiling with cracks between the plasterboard. Was originally lath and plaster, and could be the joist deflection is greater than a modern plaster skim allows. Filled them last time with a decent decorator's caulk, which is flexible. But also shrinks as it dries, so took several goes to get it level. That has been successful. -- *I got a job at a bakery because I kneaded dough.* Dave Plowman London SW To e-mail, change noise into sound. |
#8
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Hairline crack
On Saturday, 13 April 2019 09:35:27 UTC+1, DerbyBorn wrote:
What is the easiest way to seal with a hairline crack in the overskim of a plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) Probably a joint with no scrim. If so, it will come back whatever you do. |
#9
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Hairline crack
On 13/04/2019 09:35, DerbyBorn wrote:
What is the easiest way to seal with a hairline crack in the overskim of a plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) The last professional seeing to an issue like this widened the crack and filled with flexible caulk to take up any movement. |
#10
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Hairline crack
On 13/04/2019 09:35, DerbyBorn wrote:
What is the easiest way to seal with a hairline crack in the overskim of a plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) I paint over with PVA a couple of times to bond the crack, then, if it's beyond what paint will fill, a smear of fine filler. -- Email does not work |
#11
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Hairline crack
On 13/04/2019 11:32, Tim Watts wrote:
On 13/04/2019 09:35, DerbyBorn wrote: What is the easiest way to seal with a hairline crack in the overskim of a plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) I paint over with PVA a couple of times to bond the crack, then, if it's beyond what paint will fill, a smear of fine filler. I've found mixing 'polyfilla' (the powder stuff) with a mix of water and some PVA, I guess the mix, works well- provided it isn't too wet when applied. It is hard to sand down, so don't leave too proud. |
#12
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Hairline crack
On Saturday, 13 April 2019 11:46:24 UTC+1, Brian Reay wrote:
On 13/04/2019 11:32, Tim Watts wrote: On 13/04/2019 09:35, DerbyBorn wrote: What is the easiest way to seal with a hairline crack in the overskim of a plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) I paint over with PVA a couple of times to bond the crack, then, if it's beyond what paint will fill, a smear of fine filler. I've found mixing 'polyfilla' (the powder stuff) with a mix of water and some PVA, I guess the mix, works well- provided it isn't too wet when applied. It is hard to sand down, so don't leave too proud. Don't leave it proud at all would be more sensible Plasterboard is prone to move a bit, reappearance later is fairly likely. You won't prevent that. NT |
#13
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Hairline crack
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#14
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Hairline crack
In article ,
wrote: On Saturday, 13 April 2019 11:46:24 UTC+1, Brian Reay wrote: On 13/04/2019 11:32, Tim Watts wrote: On 13/04/2019 09:35, DerbyBorn wrote: What is the easiest way to seal with a hairline crack in the overskim of a plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) I paint over with PVA a couple of times to bond the crack, then, if it's beyond what paint will fill, a smear of fine filler. I've found mixing 'polyfilla' (the powder stuff) with a mix of water and some PVA, I guess the mix, works well- provided it isn't too wet when applied. It is hard to sand down, so don't leave too proud. Don't leave it proud at all would be more sensible Plasterboard is prone to move a bit, reappearance later is fairly likely. You won't prevent that. This is the problem, hence needing a flexible filler. That also grips well to the board. -- *The first rule of holes: If you are in one, stop digging! Dave Plowman London SW To e-mail, change noise into sound. |
#15
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Hairline crack
Dave Plowman (News) wrote:
In article , wrote: On Saturday, 13 April 2019 11:46:24 UTC+1, Brian Reay wrote: On 13/04/2019 11:32, Tim Watts wrote: On 13/04/2019 09:35, DerbyBorn wrote: What is the easiest way to seal with a hairline crack in the overskim of a plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) I paint over with PVA a couple of times to bond the crack, then, if it's beyond what paint will fill, a smear of fine filler. I've found mixing 'polyfilla' (the powder stuff) with a mix of water and some PVA, I guess the mix, works well- provided it isn't too wet when applied. It is hard to sand down, so don't leave too proud. Don't leave it proud at all would be more sensible Plasterboard is prone to move a bit, reappearance later is fairly likely. You won't prevent that. This is the problem, hence needing a flexible filler. That also grips well to the board. Assuming it flexes, true, but then Id expect more cracks. A bit of silicone sealer is good for small cracks if you need it to flex. |
#16
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Hairline crack
On Sunday, 14 April 2019 11:27:49 UTC+1, Dave Plowman (News) wrote:
In article , tabbypurr wrote: On Saturday, 13 April 2019 11:46:24 UTC+1, Brian Reay wrote: On 13/04/2019 11:32, Tim Watts wrote: On 13/04/2019 09:35, DerbyBorn wrote: What is the easiest way to seal with a hairline crack in the overskim of a plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) I paint over with PVA a couple of times to bond the crack, then, if it's beyond what paint will fill, a smear of fine filler. I've found mixing 'polyfilla' (the powder stuff) with a mix of water and some PVA, I guess the mix, works well- provided it isn't too wet when applied. It is hard to sand down, so don't leave too proud. Don't leave it proud at all would be more sensible Plasterboard is prone to move a bit, reappearance later is fairly likely. You won't prevent that. This is the problem, hence needing a flexible filler. That also grips well to the board. Flexible filler won't solve it, the percentage of movement in a hairline crack is too large. Filling it at painting time is trivial. NT |
#17
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Hairline crack
Brian Reay Wrote in message:
On 13/04/2019 11:32, Tim Watts wrote: On 13/04/2019 09:35, DerbyBorn wrote: What is the easiest way to seal with a hairline crack in the overskim of a plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) I paint over with PVA a couple of times to bond the crack, then, if it's beyond what paint will fill, a smear of fine filler. I've found mixing 'polyfilla' (the powder stuff) with a mix of water and some PVA, I guess the mix, works well- provided it isn't too wet when applied. It is hard to sand down, so don't leave too proud. Indeed as some fillers shrink when setting/drying, leaving it proud to sand a little is a sensible move. -- Jim K ----Android NewsGroup Reader---- http://usenet.sinaapp.com/ |
#18
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Hairline crack
On Sat, 13 Apr 2019 08:35:25 GMT, DerbyBorn wrote:
What is the easiest way to seal with a hairline crack in the overskim of a plasterbaord covered wall. Do I need to rake it out or can I apply something that will penetrate and fill it (Creeping Crack Cure?) Captain Tollys Creeping Crack Cure is really for sealing "cracks" that are no more than break in non absorbant materials that still have capillary action. Personally I follow the line of the crack with the point of a trowel, making the crack wider and a few mm deep. Mix up some ordinary powder filler, fairly stiff, spray the raked out crack with water to reduce the suction, apply filler to crack with a flexible spatula filling knife/blade, making sure the crack is fully filled. Leave very slightly proud, layer of filler on surrounding plaster translucent thin but not critical if there are some thicker lines from the edge of the knife. Wait 10 mins, until the filler is partially set, wet the flexible filling knife and smooth the the lot leaving just a residue around. Leave to dry fully wipe of residue with damp cloth. If the crack was caused by known movement that can't be sorted out rather than just a random crack I'd be tempted to use decorators caulk. Normally reserve that for timber/wall gaps, though more recently have used powder filler as above and again fairly stiff for that and it's not cracked, yet... -- Cheers Dave. |
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