[Mark C.]

Hi Mark,

I actually found this post on my first try, from the last time we
discussed this on clayart. the quote below is to the best of my
memory from John Britt:



REMET Corporation
301 Turner Street
Utica NY 13502
Contact: Ed or John
Phone: 315-797-1845


Scott Martin - Inside Sales
REMET Corporation
Phone: (800) 445-2424 ext 277
Fax: (315) 797-4848
smartin@remet.com

I have used it for mending jobs. This note below on clayart late '06 that
sent me looking for it. I used it mixed with EPK to glue kaoboard pieces
together.

Best,

Eleanora

Please note, you all! The most effective "RIGIDIZER" for any application

using ceramic fiber is "collidial silica" which is produced through

ionization of "sodium siclica" I have used clear

liquid collidal silica for endless applications for more than 4 decades.

For example, one of my electric kiln lids, started to crack. I simple

applied collicial silica into the crack; after the next firing, Bingo! The

lid is repaired totally, no more cracking or shifting movement of the kiln

lid. I could do an entire list of related applications.

Yes milled zircon is zircopax-just ground up more.

This coating will work well with coating kao-board

I use it at cone 11 on brick and fiber

Where did you get your gallon of colloidal silica?

Laguna Clay Co. sells milled zircon as well.

Mark

On Jun 4, 2012, at 7:01 AM, Eleanora Eden wrote:

Hi Mark,

This is such a welcome idea. I bought a gallon of colloidal silica

a few years ago and have used a tiny bit of it combined with I think

kaolin and flint for a surface treatment and as a glue. I will be trying

your recipe very soon. I googled zircon powder and it seems it is

zircopax. Correct?

I have lots of things to use this on but my most immediate quest is

for a better kiln wash for glass. Especially my little kao-board microwave

glass cooker. I coated the outside with itc 200 (I think) immediately as the

outsides seemed to degrade when you look at it, and that has worked very

well indeed. Now I want a better coating for the firing surface. I hate firing

on the kaowool paper and have been using regular kiln wash but that doesn't

stick worth squat. I bet this will work very well.

Am just putting in a ^04 kiln firing and am thinking of making up a tiny bit,

applying it to a scrap of kao-board, and seeing how it goes.

Any comments?

Thanks,

Eleanora

I agree with Mel's post on ITC-really great stuff-I have used it a bunch

Here is another coating that I have use a lot as well.

This stuff sticks and stays stays put even in fireboxes.

I got this recipe from a glassblower who coated his glory hole of soft

brick and fiber and have coated both with it with good results.

Liquid COLLOIDAL SILICA mixed with milled ZIRCON

1 gallon is plenty of the liquid is plenty to buy.

start out by vacuuming kiln then spray all soft brick with water via a

mister bottle so its slightly damp. if its warm out only do the area

ahead of your application.

Start with a small say cereal bowl 1/2 full of colloidcal silica about

3/4 cup -This will be your learning curve batch-

add milled zircon powder to this until its like heavy cream (this

liquid absorbs a huge amount of powder)-use a wider brush and apply a

coat to damp area bricks- coat kiln -let dry then bisque fire.

This mix works as the best coating I have ever seen or used-Its a bit

hard to brush and will ruin your bowl and brush but will stick to just

about anything-It can be sprayed as well. Work it into all cracks as

its acts like a glue as well.

Use a respirator when spraying. It covers my soft bricks and rarely

spalls (comes off)

You will not find this pre made and must make your own from scratch.

Good luck-this stuff works. Its about 100% better than any other wash

you may want to apply to a kiln.

These ingredients are a bit harder to find but worth it.I still use

and like ITC but this stuff also has its place.

Mark Cortright