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Tips for Grout Issues from CMA

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This was in an email sent to members of CMA (Contemporary Mosaic Art) website…

A message to all members of CMA

CMA Member News Reporter

Submitted by Tricia Huffman

May 14, 2011

Grouting Continued..

Since this is the finishing touch to your hard work, I am expanding on the issue of grout issues from last report to address some questions that came to me as a result.
I went to the experts whom manufacture these products, with my questions about it; here is what they said. “Over mixing or adding too much water to the mix would indeed weaken the strength of the grout joint and cause pin-holes and possibly efflorescence. If mixed according to manufacture instructions, adding more dry grout would not be needed. ( Though some artists use this technique when water supplies are limited, and have claimed great success with it.)
As far as using pigment to over-colour cured, unsealed ,non-epoxy grout joints, he indicated that using dry (French) pigments mixed with a tiny amount of water would indeed be permanent, and would have the same effect as grout stains currently on the market .
The last issue to address this month would be efflorescence, which is a white, chalky haze that sometimes appears on grout after it has cured. Here is a list of some of the causes.
1. Too Much Water was used when grout was mixed.

2. Concrete substrate had not fully cured or had a moisture vapor issue prior to adhering mosaic.

3. Water used in mixing or cleaning the grout was high in chlorine or had a high mineral content.( Pond water or home water softeners and city water that is heavily chlorinated or has a high mineral content can contribute to efflorescence.)

4   Temperatures were too cold while grout was curing.

5. Grout joints were wiped excessively during initial cleanup.

6. Standing water was left in empty grout joints prior to
grouting.

7 Tile was especially dense and nonporous.

8 Grout was prematurely exposed to heavy amounts of water before it had a chance to cure.

Always consult manufacture instructions for your particular needs.

Have you read?

Knit a Classic Aran Cardigan with this Free Knitting Pattern

Not too long ago I did a test knit for another designer that was for a cabled cardigan. It’s really cozy and nice but it just about broke me in a ton of different ways. I couldn’t get gauge, which I suppose is my own problem, but mainly I was somehow both bored and forced to pay attention at the same time. 

Because it used the same cable all over, I always had to know what row I was on, but nine out of ten of those rows, nothing in particular was going on. So I couldn’t stop paying attention, but what I needed to attend to was boring. 

It may have ruined me for knitting cabled sweaters, but maybe I just need something that’s more engaging. Like this Modern Aran Cardigan pattern from Lion Brand Yarn. 

This is a reworking of an old pattern from their archives, and you can tell that form the classic look of the cables and the oversized feel (nothing cropped about this one!). It has allover cables, but like a classic Aran sweater it’s not the same cable, so you’ll have to pay attention to what row you’re on and what cable turns happen for which cables on that row. 

Because of this, it’s considered an intermediate knitting pattern, but if you’re comfortable working from multiple charts at once it shouldn’t be a problem for you. There are three different charts and seven different cable moves. 

Also because the pattern is so big and boxy there are only two sizes available, with a finished chest measurement of either 49 or 63 inches (that’s 124.5 or 160 cm). It’s up to you to decide how much ease you would like and whether that will work for your body. 

The pattern uses worsted weight yarn (and calls for another classic, Lion Brand Fisherman’s Wool). It calls for six buttons and includes pockets to make it extra cozy. 

This one looks like a great winter project to make and to wear if you’re up for a bit of a challenge. You can grab the free pattern or buy a kit with the yarn needed direct from Lion Brand Yarn. 

[Photo: Lion Brand Yarn]