Grit fail

[John j]

Grit is designed to be used on surfaces with little or no suction such as tiles & smooth concrete for example, and the grit gives the key to enable the plaster to adhere to it. If the grit is dry and does not contain sufficient grit the plaster hasn’t got anything to grip to. With tacky PVA the Gypsum crystals that grow during the setting process can grow in to the PVA.
Hope that answers your question.

For record is skimming dry pva bad practice

 

[MakeItSmooth]

For record is skimming dry pva bad practice

With bonding or with multi?

 

[John j]

With bonding or with multi?

Multi

 

[MakeItSmooth]

With bonding or with multi?

Multi

 

[essexandy]

How long you been plastering

35 minutes

 

[The Apprentice]

For record is skimming dry pva bad practice

The only thing I can say is what does it say on the instructions. BG spec tacky for gyprime

 

[John j]

The only thing I can say is what does it say on the instructions. BG spec tacky for gyprime

I.ve skimmed loads dry never had a prob . (That I know of) skimmed a stair case I pva.d last week tomoz lol

 

[Retired Spread]

I think you'll find that any plastering PVA will say on back of tubs to plaster onto it when tacky

 

[algeeman]

I.ve skimmed loads dry never had a prob . (That I know of) skimmed a stair case I pva.d last week tomoz lol

I've glued pillers of concrete
in Chelsea hotels

and Manchester office blocks

skimmed few weeks later

it's fine

 

[ChrispyUK]

I’ve bought a microscope recently, so when I’ve finished analysing COVID I’m gonna see what’s going on with the bond between tacky and dry pva

 

[MakeItSmooth]

I’ve bought a microscope recently, for the bedroom, so when I’ve finished analysing COVID I’m gonna see what’s going on with the bond between tacky and dry pva

 

[John j]

Bit of a up date
Seems a load of damp soots come down . Personally not.blaming that but takes a bit.of blame of me

 

[ChrispyUK]

Bit of a up date
Seems a load of damp soots come down . Personally not.blaming that but takes a bit.of blame of meView attachment 63172

Looks a bit thrifty with the grit.

 

[John j]

Looks a bit thrifty with the grit.

It's all in plaster what's on floor

 

[ChrispyUK]

It's all in plaster what's on floor

 

[John j]

View attachment 63174

He said he stirred it.


s**t happens going.fri to patch it and do few bits extra .

 

[ChrispyUK]

He said he stirred it.


s**t happens going.fri to patch it and do few bits extra .

looks like rest will shell off easily.

 

[John j]

looks like rest will shell off easily.

Says he.s pulled loose off

 

[ChrispyUK]

Says he.s pulled loose off

horrible that John.

Dont slam door on way out

 

[John j]

horrible that John.

Dont slam door on way out

I did.say if it fails.again it's a overboard job

 

[zombie]

I did.say if it fails.again it's a overboard job

Pay peanuts get jonkys

 

[MakeItSmooth]

I did.say if it fails.again it's a overboard job

I'd say it was an overboard job before it failed!

 

[Monkey Boy]

Pay peanuts get jonkys

 

[paulf]

looks like rest will shell off easily.

John's a canny lad, he'll wait until artex is back in fashion and charge them to strip the rest off.

 

[Cockney]

He said he stirred it.


s**t happens going.fri to patch it and do few bits extra .

Disaster waiting to happen.

Keep us updated.

 

[John j]

Disaster waiting to happen.

Keep us updated.

Will do . . I.m covered now as I said if it fails again its over boarded

 

[carys]

Did a full house over artex . Used bostik cementone . Two bits have come away on two ceilings gonna go back and sort it for kid. Buy just wondered if anyone's got compensation when they have had a fail after using a certain product

Yes only time grit or pva will fail if backround not sound. But sometimes it hard to say. Strip ceiling over board full guarantee . Or round the conner guarantee for over skim!

 

[Stevieo]

I hope nobody’s suggesting John would scrape a potential asbestos filled artex ceiling are they?

Thats what laboureris for

 

[thomas odonnell]

I've had a lot of trouble last couple of years with pva not doing it's job, as in the skim separating, and sliding. Can anyone recommend a good brand of pva.

 

[John j]

I've had a lot of trouble last couple of years with pva not doing it's job, as in the skim separating, and sliding. Can anyone recommend a good brand of pva.

If its sliding your putting skim on when it's still to wet

 

[thomas odonnell]

Was touch dry, one I'd pva'd the day before?

 

[thomas odonnell]

Like I said PVA is King

What brand/make do you use.

 

[Monkey Boy]

College teacher told me PVA is PVA and it doesn’t matter which one you get
That may be true in a chemical factory but it gets stamped on as it passes through the dealers
Amsterdam always had purer stuff imo

 

[ChrispyUK]

Don’t do much over skims, but tend to buy the unibond super concentrated in the black container now. I think a few thin coats first are better than lashing on thick coats straightaway.

 

[John j]

Don’t do much over skims, but tend to buy the unibond super concentrated in the black container now. I think a few thin coats first are better than lashing on thick coats straightaway.

I think all pva needs less water lately. Even good stuff