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Old 09-05-2009, 08:33 AM   #1
scott anthony
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Grout bag tricks

I was doing some grout work on stone veneer this week. I was using the premix version sand / mason. Everything looked fine but there's got to be a better way than that dam bag. Often the bag would get clogged and the flow completely stopped, I then tracked outside to empty thin and start over, I can't count how many times this happened. Luckily it was only a 70 ft fireplace.
For those who may have used this app, how do keep the flow?
And yes I did cut the end to about a bit less than a dime, and the consistency was that of apple sauce, and still clogged.
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Old 09-05-2009, 08:57 AM   #2
John Bridge
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Hi Scott,

I hate it as badly as you do. I learned a little about cement hydraulics back in my home building days -- pumping concrete and grout. The mix has to be rich. Try 1 cement to 2 sand, and keep it loose. Also, don't fill the bag. About half full is right. That way you can keep squeezing it around, keeping it mixed, as you're pumping it through. Ain't easy, but you know that.
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Old 09-05-2009, 09:03 AM   #3
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yep, as john has stated dont fill the bag. I like to cut my tip just larger then the size of joint im pumping and I generally will fill the bag less then half full. It sucks having to fill the bag a bunch but it dont clog. also, instead of twisting the top of the bag, i just fold it over i think it helps with air flow and keeps the mix moving
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Old 09-05-2009, 09:14 AM   #4
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All good advice. If you can, wash out the bag before refilling. Sometimes it may be too messy to do this inside the house but even having a bucket of water handy to dunk the bag into helps.
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Old 09-05-2009, 10:58 AM   #5
ceramictec
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buy a good bag also. some are junk.

I also like my my grout pretty loose when I use a bag. letting it slake and well mixed helps too.
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Old 09-05-2009, 11:24 AM   #6
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Grout bags vs Large caulking guns.

Morning fella's and Happy Labor day.
I was having trouble years ago grouting a very porous stone with epoxy.
What we did was purchase one of those very large Industrial caulking guns.
They have available several nozzle sizes, but what worked best was the standard metal nozzle slightly shape with a few small blows from a hammer.
WE have since used it to grout thin brick veneer, faux stone veneer.
various other types of porous rocks.
You caulk it in until the joint is very full, then take your putty knife or float and strike off the joints, then clean as usual. Works so well.
There is also a mechanical hopper type that fits on the end of a drill.

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Old 09-05-2009, 07:26 PM   #7
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Scott
This tool works well for pointing grout, whips a bag all day. I don't know what you're trying to push through it but it might handle it.

http://www.contractorsdirect.com/Til...r-Grout-Mortar
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Old 09-09-2009, 08:43 PM   #8
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All of this may have been mentioned but here goes.

Good grout bag ones in masonry area are better than tile ones. cut just a hair shy of 1/4" off end fill bag about 1/2 way fold end then twist when holding upright lay bag over knuckles and gently work tip with other hand kind of like pinch and release to keep flow going. but the best trick of all and old and I mean old mason told me to put 2 or 3 drops of Dawn dish liquid in your bucket when you mix grout. yep put it in the grout. Have never had any issues yet done this with both natural and dyed materials. but besides that maybe eat some spinach. I know my arms are dragin after a day of bagin.
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Old 10-24-2010, 09:02 AM   #9
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Bad QUIKRETE Type S premix!

Have had some bad problems with this product using it to apply stone veneer to my house.
I have several bags that will NOT go thru a grout bag.
Talked to stone manufactures and the QUIKRETE rep., all said I was using the right product.
Tips I tried, making it so wet it was unusable, spraying Pam inside the bag, screening the premix thru a very fine sieve, enriching the mix with pure
type S, new bag, with the metal tip,without the metal tip.
I did almost my entire house with stone without a problem,
got near finished and the mortar would not flow. have many bags left out of
more than 2 pallets of it that will not work.
Went to a different lumber yard and bought 2 individual bags , ( pulled one bag from one pallet and another bag from a different pallet.)
Still neither one would flow. It was from a new shipment of mortar too , just arrived there. Fresh as it gets.
Most of the grout I did do was with left over mortar from applying stone and it flowed well even near as thick as peanut butter, and during the heat of the summer.
So any suggestions?
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Old 10-24-2010, 09:10 AM   #10
Chad Deiter Construction
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I have not yet had problem with any certain brand. Biggest thing for me is to keep the bag pumping. When you stop to go to another side or other joints when it clogs usually. Consistancy is also very important.

ALso one of the home made bucket trowels is great for filling the bag.
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Old 10-24-2010, 09:54 AM   #11
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Bags?

home made bucket trowels ?

I used Marshalltown bags, both new, I like them without the metal tip in place, that way I can easily squeeze it down to what size I need.
I always know when it will grout well, as you fill the bag it will run out the tip.
When it does not run out the tip , you might as well dump it , it is not work fooling with.
Even the heavy mortar when the right formula will weep out the tip when filling.
The sorry gout even when runny and have to fill with a can will immediately plug the tip and will not flow out when filling.
I have even let the mix "slump" and re-stir and tried it, no use.
I am not near a big box lumberyard, (100+ miles one way).
I have to use what they sell near me.
Am thinking of trying sand topping mix tomorrow.
I would like to stay with the type S but now am about to give up.
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Old 10-24-2010, 10:16 AM   #12
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Quikrete brand!

I wanted to stay with the Type S for it strength and stickiness , the Sand Topping mix is made with just Portland.
I first thought the trouble I was having was from a lack of portland or lime in the mix, but after enriching it with type S , I believe it lies in the sand type.
The clogging in the bag tip can only be the sand.
thus the use of the sieve, but even as fine as my sieve was it would not filter it enough.
So I have to lay it on the type of sand.
I know that Quickrete must have several batching plants around the states that make this and I happen to live in an area that is getting the same old run every time.
I also encountered some bags that were so saturated with gravel I could have used them as concrete.
It became noticeable when my "buttered" stone would not stick and I would have to dig the gravel off the backs of the stone to get it to squeeze to the wall.
After this I would dump each bag into a metal trash can and if I heard gravel hitting the can I would screen it before mixing.
I felt like these bags were at the first of a run after batching some concrete and the conveyer belts still had gravel on them?
If there were any other brand that was sold near me other than Quikrete I would use that .
I do not recommend Quickrete as there is nothing more annoying and messy than have a load of ready to go mortar and up on a chimney and find out that it wont work.
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Old 10-24-2010, 10:31 AM   #13
ceramictec
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Hey Ron,

there's an additive you can add to your mortar to help it flow easier.

http://rapidset.com/Flow_FAQ.asp

I also think theres something called " Plasticizer " you can add.
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Old 10-24-2010, 10:57 AM   #14
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If you're making your own grout mix use a little more type n masonary mix. It make the mix slicker and it flows better.
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Old 10-24-2010, 11:42 AM   #15
Chad Deiter Construction
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Bucket Trowel

I made one out of a ten inch brick trowel and just used the grinder to cut off about 3-4" of it so it's flat across. There in some of the Schluter videos seem to be more popular in Europe.
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