ronfire Posted October 30, 2015 Report Share Posted October 30, 2015 I was thinking of trying to use a pressure washer to clean off the old kiln wash from the shelves. Has anyone tried this? Does it work well. I know it would remove the loose flakes but not sure of the rest. I have sanded and ground them but makes a nasty amount of dust, even outside. Link to comment Share on other sites More sharing options...
Mark C. Posted October 30, 2015 Report Share Posted October 30, 2015 water is not something that you want in a shelve. The loose flakes will come off but you need to snad or grind the tough stuff-use a good mask-its just another process.My guess is presure wash will be a bust.Its just good practice to keep your shelve dry. Mark Link to comment Share on other sites More sharing options...
DirtRoads Posted October 30, 2015 Report Share Posted October 30, 2015 water is not something that you want in a shelve. The loose flakes will come off but you need to snad or grind the tough stuff-use a good mask-its just another process.My guess is presure wash will be a bust.Its just good practice to keep your shelve dry. Mark water is not something that you want in a shelf Link to comment Share on other sites More sharing options...
Marcia Selsor Posted October 30, 2015 Report Share Posted October 30, 2015 I use a right angle grinder and wear a mask. You can get the loose flakes with a wire brush. Don't use water as stated above. Marcia Link to comment Share on other sites More sharing options...
Min Posted October 30, 2015 Report Share Posted October 30, 2015 Kiln wash shouldn't be flaking off. After you get the old stuff off then change your wash recipe / application. Use 1/2 calcined clay so the wash doesn't shrink (and crack) so much. 50 alumina hydrate, 25 epk, 25 calcined epk. I use a small touch up paint roller, don't apply it too thick, no flaking. Other recipes out there that are good also, just don't put it on too thickly. Link to comment Share on other sites More sharing options...
Bioman Posted October 30, 2015 Report Share Posted October 30, 2015 Ditto the RA grinder. Works faster than scrapers but you need to do it outdoors. Link to comment Share on other sites More sharing options...
TJR Posted October 31, 2015 Report Share Posted October 31, 2015 Do not use ball clay in your kiln wash. It shrinks and cracks. T. Link to comment Share on other sites More sharing options...
ronfire Posted October 31, 2015 Author Report Share Posted October 31, 2015 Thanks, will stay away from the water. I as thinking of letting the shelves dry for a couple of days before using them anyway. So far I am using the kiln wash that was remade from greenhorn pottery supplies. Link to comment Share on other sites More sharing options...
Mark C. Posted October 31, 2015 Report Share Posted October 31, 2015 Throw away bad cheap kiln wash its not worth the suffering. Mark Link to comment Share on other sites More sharing options...
Rex Johnson Posted November 9, 2015 Report Share Posted November 9, 2015 Hope this is on topic. I've been having a problem with my kiln wash (Laguna) flaking off. I don't remember this being a problem in the past. Any ideas? Link to comment Share on other sites More sharing options...
neilestrick Posted November 9, 2015 Report Share Posted November 9, 2015 Hope this is on topic. I've been having a problem with my kiln wash (Laguna) flaking off. I don't remember this being a problem in the past. Any ideas? Try applying it in thinner layers. Otherwise you'll have to switch to a different formula. Link to comment Share on other sites More sharing options...
Mark C. Posted November 10, 2015 Report Share Posted November 10, 2015 Give up on commercial washes and make you own. Do a search as this has been written about before. Mark Link to comment Share on other sites More sharing options...
Tim T Posted November 10, 2015 Report Share Posted November 10, 2015 Also if you have glaze drips that have got through the wash and stuck to the shelf, don't try chipping them off as some people recommend - they often come off OK, but take a divot of the kiln shelf with it. And if it is really bad and you get carried away with the hammer, even if striking near parallel to the kiln shelf, you can end up with 2 half shelves, which may not be what you planned. It is noisy and dusty, but go for the angle grinder. Link to comment Share on other sites More sharing options...
oldlady Posted November 10, 2015 Report Share Posted November 10, 2015 got the angle grinder, ready to tackle shelves but cannot find previous posts re which disc is best. a new harbor freight opened recently HOORAY! and i can get the right one if you tell me which it is. Link to comment Share on other sites More sharing options...
Mark C. Posted November 10, 2015 Report Share Posted November 10, 2015 From memory I think the masonary ones are # 1771 for 4 inch-also a diamond blade is nice as well. Mark Link to comment Share on other sites More sharing options...
oldlady Posted November 10, 2015 Report Share Posted November 10, 2015 do i remember someone saying "the green one"? and how would i use a diamond blade? Link to comment Share on other sites More sharing options...
Mark C. Posted November 10, 2015 Report Share Posted November 10, 2015 do i remember someone saying "the green one"? and how would i use a diamond blade? If your grinder is a 4 inch the 1771 discs which come in a 10 pack for masonary grinding (not steel) work fine the green one is for bench grinders and grinding glaze on pots not shelves The dimond disc is morte for harder shelves than mulite electrics kiln ones. Now you did say you are tired of green glazes if I recall? Mark Link to comment Share on other sites More sharing options...
oldlady Posted November 11, 2015 Report Share Posted November 11, 2015 yes, not only tired but apparently it can be toxic Link to comment Share on other sites More sharing options...
Chantay Posted November 14, 2015 Report Share Posted November 14, 2015 Yes, apply kiln wash thin. Thicker is not better. Link to comment Share on other sites More sharing options...
katesbeads Posted February 12, 2016 Report Share Posted February 12, 2016 I have some kiln shelves with blobs of old glaze on them, can I just put more bat wash on top of the glaze and will this stop things in the next firing from sticking to the glaze? Many Thanks Kate Link to comment Share on other sites More sharing options...
Benzine Posted February 12, 2016 Report Share Posted February 12, 2016 Kate, That is not recommended. The glaze will continue to melt, and eat into the shelves. Grind as much as possible and carefully chisel the rest. It's not ideal to have gouges in the shelves, but it's better than to leave the glaze. Link to comment Share on other sites More sharing options...
Mark C. Posted February 12, 2016 Report Share Posted February 12, 2016 No you cannot do that -you need to chisel or grind that glaze off as it will just reflux and drift more into the shelve at high temps. The last point is since Batman passed away years ago and the estate sold the Bat mobile where did you get that Bat wash? I think the Batman museum whole love that Bat Wash. Link to comment Share on other sites More sharing options...
Chilly Posted February 12, 2016 Report Share Posted February 12, 2016 I've found (sometimes) that kiln wash over glaze blobs makes it easier to dig the glaze out after the next firing. I don't always have the tools to remove the blobs at the time. Link to comment Share on other sites More sharing options...
frankbonatelli Posted December 2, 2016 Report Share Posted December 2, 2016 Can any one state whether I need to fire my newly washed shelves before first use? I have trolled extensively and not been successfully in finding this piece of the procedure. Link to comment Share on other sites More sharing options...
Dick White Posted December 2, 2016 Report Share Posted December 2, 2016 I do not pre-fire the newly washed shelves, but I do make sure the wash is completely dry. Link to comment Share on other sites More sharing options...
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