Plasterer not happy with FeBond Blue Grit

[phatboy]

Hi,

Recently I have had a few rooms re-plastered over old. I haven'tused Thistle Bond It because it was so expensive. I have tried Bostik Stabalising primer, and Febond Blue Grit.

The plasterers have hated both, saying they are not reducing suction like Thistle Bond It would.

The Febond one also went on really unevenly.

Is this a general condition, and there is no decent substitute for the expensive Thistle product? I will be using this going forwards I think, but just wondered if the others are cheap imitations. Or maybe they are actually only designed to key the wall and not as a suction blocker?!

Cheers!

 

[stevethespreader]

Blue grit is good stuff aggregate is a bit bigger but it evens out the suction ok

 

[phatboy]

Blue grit is good stuff aggregate is a bit bigger but it evens out the suction ok

Plasterer didn't agree, said the suction on the plasterboard ceiling was terrible and he had to do 3 coats of plaster to get it right!

From my reading, it seems these products (With the possible exception of Thistle Bond It) are designed for LOW suction surfaces purely to provide a key for the new plaster.

 

[stevethespreader]

That's not the case they are designed to seal as well and tbh they are pretty much the same, suction on a plasterboard ceiling terrible? I've heard it all now just when you think you've heard every excuse in the book someone comes out with another classic, years ago when blue grit came out I was on a refurb job I had to even out the suction of old walls that included old render , new render and painted walls , it done the job a treat i even spoke to everbuild on the phone who told me it with even the suction which it did , I'm sorry I'm having a chuckle at the high/bad suction plasterboard ceiling comment but plasterboard is not high suction, oh here's a tip for your spread and anyone else that wants to use bluegrit and wants some extra time , mix it with SBR the skim holds back for ages , I turned upon a job once and the contractor had already bluegritted the walls and when I asked why it's a lighter colour he said it's mixed with SBr it gave me loads of time

 

[roughcaster]

I agree with Steve,,,
, and the "suction on a plasterboard ceiling bit,,,, needed an EXTRA COAT,,, , laughable!! Some people will make up any excuse, rather than admit they couldn't manage.

 

[phatboy]

Actually the job was really good and required very little filling. The ceiling is from 50's, and has in the past has polystyrene tiles attached, and later been papered and sized.

I had another room done by another plasterer and he said much the same!!

Blue grit didn't go in even at all, some bits were full of grit and others bare - as soon as the roller touched the wall that's where the grit stayed. The Bostik version I used before went on nice and evenly, but apparently suction was still a problem...

 

[stevethespreader]

Actually the job was really good and required very little filling. The ceiling is from 50's, and has in the past has polystyrene tiles attached, and later been papered and sized.

I had another room done by another plasterer and he said much the same!!

Blue grit didn't go in even at all, some bits were full of grit and others bare - as soon as the roller touched the wall that's where the grit stayed. The Bostik version I used before went on nice and evenly, but apparently suction was still a problem...

your supposed to mix it first did he mix it? If you don't mix it it will be uneven lol, so he was struggling with suction even using another grit?

 

[stevethespreader]

Actually the job was really good and required very little filling. The ceiling is from 50's, and has in the past has polystyrene tiles attached, and later been papered and sized.

I had another room done by another plasterer and he said much the same!!

Blue grit didn't go in even at all, some bits were full of grit and others bare - as soon as the roller touched the wall that's where the grit stayed. The Bostik version I used before went on nice and evenly, but apparently suction was still a problem...

your supposed to mix it first did he mix it? If you don't mix it it will be uneven lol, so he was struggling with suction even using another grit?

Actually the job was really good and required very little filling. The ceiling is from 50's, and has in the past has polystyrene tiles attached, and later been papered and sized.

I had another room done by another plasterer and he said much the same!!

Blue grit didn't go in even at all, some bits were full of grit and others bare - as soon as the roller touched the wall that's where the grit stayed. The Bostik version I used before went on nice and evenly, but apparently suction was still a problem...

your supposed to mix it first did he mix it? If you don't mix it it will be uneven lol, so he was struggling with suction even using another grit?

Also any good spread knows what backgrounds has bad suction plasterboard ceilings is not one of them, now if you was to mention bone dry hardwall or old lime render that they was having trouble with I could understand, also just as a note bluegrit has the largest of the aggregates and it insures that you get a nice thick coat may I ask how big your ceilings are?

 

[phatboy]

Actually the job was really good and required very little filling. The ceiling is from 50's, and has in the past has polystyrene tiles attached, and later been papered and sized.

I had another room done by another plasterer and he said much the same!!

Blue grit didn't go in even at all, some bits were full of grit and others bare - as soon as the roller touched the wall that's where the grit stayed. The Bostik version I used before went on nice and evenly, but apparently suction was still a problem...

your supposed to mix it first did he mix it? If you don't mix it it will be uneven lol, so he was struggling with suction even using another grit?

Actually the job was really good and required very little filling. The ceiling is from 50's, and has in the past has polystyrene tiles attached, and later been papered and sized.

I had another room done by another plasterer and he said much the same!!

Blue grit didn't go in even at all, some bits were full of grit and others bare - as soon as the roller touched the wall that's where the grit stayed. The Bostik version I used before went on nice and evenly, but apparently suction was still a problem...

your supposed to mix it first did he mix it? If you don't mix it it will be uneven lol, so he was struggling with suction even using another grit?

Also any good spread knows what backgrounds has bad suction plasterboard ceilings is not one of them, now if you was to mention bone dry hardwall or old lime render that they was having trouble with I could understand, also just as a note bluegrit has the largest of the aggregates and it insures that you get a nice thick coat may I ask how big your ceilings are?

It was 16 square meters.

Yes I mixed up the Febond, using a mixer in a drill.

 

[phatboy]

Another plasterer said he had suction issues using the Bostik version. Very similar room, but slightly smaller.

 

[stevethespreader]

I don't know what to say lol bad suction on pb ceilings using grit ? The mind boggles

 

[phatboy]

By way of an update... the same plasterer and a mate have done 2 more rooms for me in the last few weeks.

He said the existing plaster is seraphinite (sp) which is causing the suction.

Any comments welcome.....

 

[stevethespreader]

what kind of comments to your plasterers comment are you after?

 

[chappers]

Exactly.
It worries me that you say the ceiling was only 16sqm that is a walk in the park for any spread, even me and its not my trade. Also you say the ceiling didnt need much filling. It shouldnt need any. But what worries me the most is their lack of understanding and knowledge of the substrate they are applying to and the products they should be using.
You sure they don't have a dodgy load of plaster.

 

[phatboy]

So you can produce a ceiling that is simply ready to paint? No flicks of water, brush marks where it joins the walls and no trowel marks at all? How much do you charge per metre?