Thistle spray finish

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What is Thistle Spray Finish?

Thistle Spray Finish is a gypsum setting plaster, its characteristics are very similar to British Gypsum’s other finishing plasters. The product has been designed for spray application by worm pump spray machines (e.g. m-tec’s M100-SC or PFT’s Ritmo). The product is applied as a skim coat to a thickness of 2mm.

What backgrounds can Thistle Spray Finish be applied to?


Thistle Spray Finish is designed for plasterboards and for backgrounds treated with Thistle Bond-it (e.g. MR boards, flat concrete etc). It is not designed to resist the suction from undercoat plasters.

What is the setting time of Thistle Spray Finish?


The setting time is a little longer than Thistle Multi-Finish by around 15 minutes. The longer setting time helps the plasterer keep control of larger areas covered. The set is very gradual allowing plenty of flexibility around the flattening and trowelling operations. The final trowel is carried out at around 110 minutes.

What is the coverage per bag of Thistle Spray Finish?

11m² per 25kg bag based on a 2mm thickness. The figure allows for some excess use e.g. in tapered edge joints etc, but it does not include waste. A small amount of waste is inevitable at the beginning and end of the day during machine setup and cleaning. Such waste material is likely to be used up for the more intricate areas of the job such as window reveals. The coverage of other Thistle finishing plasters (Thistle Multi-Finish, Thistle Board Finish and Thistle Durafinish) is 10m² per 25kg bag.

Can Thistle Spray Finish be applied by hand?


Thistle Spray Finish is equally at home being applied by hand or machine. Nearly all machine jobs will have some areas for which spray application is impractical (e.g. window reveals).

What is the colour of Thistle Spray Finish?


Thistle Spray Finish is light grey in colour. It is manufactured at our Kirkby Thore site in Cumbria, where the mined gypsum seams are grey, giving the product its colour. Plasters that are manufactured at our East Leake and Barrow plants in the East Midlands are pink in colour because the gypsum seams mined there incorporate pink marl.

Do you need to sand the surface down once the product has been sprayed onto the wall?


No. Thistle Spray Finish is a traditional gypsum setting plaster. Once it has been applied on the wall it is finished by trowelling the surface flat.

What treatment is required prior to painting?


None. Thistle Spray Finish is a traditional gypsum setting plaster. Once the surface has been trowelled flat it is left to dry. Once dry the surface can be painted in the usual way.

How much is a 25kg bag of Thistle Spray Finish?

Thistle Spray Finish is available from all good merchants and distributors. Please request a price from your local branch.

Can I spray Thistle Durafinish?


Yes. Thistle Durafinish can be applied by worm pump spray machines in the same manner as Thistle Spray Finish.

Can I spray Thistle Multi-Finish or Thistle Board Finish?


No. Thorough testing, both laboratory and practically based, prove that there is unacceptable risk of adhesion failure between the substrate and plaster.

 
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flynnyman

Well-Known Member
Can I spray Thistle Multi-Finish or Thistle Board Finish?

No. Thorough testing, both laboratory and practically based, prove that there is unacceptable risk of adhesion failure between the substrate and plaster.

well this is a load of bollox coz simplythebest has been saying for years he was told you could do, so this is wrong lol
 

antoni

New Member
Well all them machine systems using multi-finish on video on the net ad beta kill there thread then:RpS_scared:
could it go to a liable??????????????
 

spunky

Private Member
Could it **** I bet you're not meant to one coat or add dirty water but we all still do it
 

theblones

Active Member
its based on the fact that the multi finish dries in the air before hitting the wall the BG man told me. If you watch the m tech spraying it seems faster, when in fact it just has more air being sprayed at the wall and the ritmo video is using much less air
 

essexandy

The Lake Governor
I must just correct you on one part of your summary Danny, you say it doesn't need sanding but that demo wall we saw sprayed today would definitely have needed filling and sanding on one of my jobs lol.
 

flynnyman

Well-Known Member
its based on the fact that the multi finish dries in the air before hitting the wall the BG man told me. If you watch the m tech spraying it seems faster, when in fact it just has more air being sprayed at the wall and the ritmo video is using much less air


Hmmmm good answer but what about when its on the spotboard or on your trowel just before it hits the wall? I also thought multie was a two coat plaster ie rough on and laying down...............and yes spunky it can be done in one coat but we are going on the spec :)
 

theblones

Active Member
flinny you're picking holes in a string vest here:flapper:. What the BG guy explained was that with a small nozzle and high air output the plaster would atomise in the air and dry before hitting the wall. They more than likely didn't consider the ritmo spraying it with smaller airflow because most thin coat applications require lots of air. Obviously with smaller air flow and a bigger nozzle there is less chance of the material atomising.

I think :confused:
 
so is that a bit like when you use a spray can to paint and what doesnt hit the surface turns to dust?
 

Curry

Private Member
I must just correct you on one part of your summary Danny, you say it doesn't need sanding but that demo wall we saw sprayed today would definitely have needed filling and sanding on one of my jobs lol.

to be fair to bg that wall had about 10 people messing with it and people spraying for the first time
 

spunky

Private Member
Hand on heart do you think it would be quicker on a average site and what was the overspray like do you think it'd be alright in angles ?
 

essexandy

The Lake Governor
to be fair to bg that wall had about 10 people messing with it and people spraying for the first time

I know you're right but he also didn't even attempt to work neatly up to the ceiling line or to an angle bead. Personally I think a demo of this sort of product is only really worth watching if it's done in a true to life situation. On the other hand Stuarts dem of sprayed acrylic was really good.
 

essexandy

The Lake Governor
Hand on heart do you think it would be quicker on a average site and what was the overspray like do you think it'd be alright in angles ?

I would say that if you were on a job where you could get away with a less than 7/10 standard then yes once you've got used to the method it could save you time, but then we all know ways we could save a fair bit of time if you are willing to lower your standards. One thing I would say is that the BG spray plaster is very fine just like the old Carlite finish so could be of use hand applied to dry Browning or Hardwall.
 
I would say that if you were on a job where you could get away with a less than 7/10 standard then yes once you've got used to the method it could save you time, but then we all know ways we could save a fair bit of time if you are willing to lower your standards. One thing I would say is that the BG spray plaster is very fine just like the old Carlite finish so could be of use hand applied to dry Browning or Hardwall.

I actually disagree with that.. if you had someone spraying and then another man behind troweling it would be fine....
 

theblones

Active Member
i believe the key to the success of spray skim will be with the plasterer who will achieve a further 10 m2 approx per set without any great effort and put 3 sets on in a day. Whilst managing to keep the place nice and clean and his work standard very high That extra meterage does not sound impressive but realistically if you can achieve an extra 150 m2 a week that equates to at least £ 300 in your bin.

After he becomes more confident with the machine The plasterer can then train an apprentice up to a level where you are turning out only a bit less meterage of a 2 man gang, yet the plasterer will gain all the prophet and pay out a small cost in wages.

It will fail for the people who go diving in trying to achieve huge meterage and expect to trowel it up in the same time as a small set. All the while dropping their standards and chasing sets that have gone off all day.
 

Curry

Private Member
This finish is the future lads, it requires less attentionand is less effort. There is no way that you would get a finish with just a spat on multi.

As a one coat finish it is much better the multi hands down. Maybe the quality is lower then a 2 coat multi finish but you getting twice the meterage on!

Sites dont give a s**t amount quality nowadays so why cry that is not as good. This tech will allow us to earn a decent wage again, like we should!

I know if it was just me doing the whole process from start to finish im sure that the quality would be just the same with time.

We think that it will almost double the amount of work our three man team would do. Its a combo of the machine and spray plaster that will do this. So im sold!

The old man also said it was like Carlite and wants to get some on some Hardwall so you could well be right essexandy.



Im getting a Ritmo and a pallet of this spray finish anyway so we will let you know how we get on :RpS_thumbsup:
 
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spunky

Private Member
jerk.gif
 

Curry

Private Member
whats the face doing spunky???? looks perverted to me!

To make my view clear this finish is better for site work as it is a better one coat system and i know all you ruff conts are one coating to make it anywhere near pay.

BG know this thats why they have made this for us
 
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Curry

Private Member
im back on the 14th so will see what its all about 100%

southern i must say ur demo was the best of the day
 
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