$30 Sandblaster + Coffee Mug = CHALKBOARD Coffee Mug

[@Markomyt1]

I love how you jumped when the glass broke and the puzzled expression... been there, done that!

[@glennwyant9533]

The word you are looking for is 'glaze'. The colored part of the mug is called glaze.

[@KeithsTestGarage]

Glenn Wyant thanks! To be clear, that includes both the colored part and the gloss?

[@MaxDSquires]

@@KeithsTestGarage Yeah, the glaze turns glossy in the extremely high heat it is fired in.

[@KeithsTestGarage]

@@MaxDSquires Thank you.

[@glennwyant9533]

@@KeithsTestGarage The glaze is applied to the surface of the ceramic before it is fired in the furnace. The glaze melts, resulting in the glossy surface. You should be aware though, that some glazes include lead, which helps enhance the color and sheen of the glaze. Not all glazes have lead, but you might want to get a test kit and see if there is any in the cups you have blasted already.

[@HunGredy]

@@KeithsTestGarage The material scientist in me was smiling with joy when you were looking that up. I realized my field of study is still not general knowledge :D

[@HansFormerlyTraffer]

Yay, thanks for an informative video. Now I know that sandblasting is not an impossible dream.

[@KeithsTestGarage]

Hans Pcguy yeah it’s cheaper than most say...at least on a small scale. Definitely try to find the fine sand if you get a sand blaster like I have. It’ll work with the medium sand (at least from the monument company) but sort of gulps a bit more.

[@Pooky1973]

@@KeithsTestGarage what about adding some sort of two way port so one is buried in the sand and the other is outside it to acquire more air?

[@Pooky1973]

Or some perforation maybe

[@Pooky1973]

Dude you're awesome! Love your channel. You're like the neighbor every got wishes he had. Only... Less creepier than that may have read yet not at all in my head

[@alex.quiniou]

Great vidéo man

[@HansFormerlyTraffer]

Fired earthenware. Glazed fired earthenware. Glaze is glass particles in a slurry that is fired on to a clay pot. Sandblasting the surface actually weakens the cup (a tiny bit)

[@KeithsTestGarage]

That would make sense. If the blasting doesn’t go past the enamel, is all good?

[@DigitalArchmage]

I'm probably going to get this sand blaster (dangit! and thanks!) -- I'm curious, however, if removing the glaze removes the "food safe" aspect of a mug. If there's something the glaze is preventing you from leeching chemical x (I mean, it made the powerpuff girls, it can't be that bad), then...bad? Note: I speak completely from the lack of knowledge, not from having any.

[@KeithsTestGarage]

DigitalArchmage somebody else brought this up elsewhere and my research has led me to believe that since I’m not removing the glazing there is no issue.

[@bethechangeme2233]

Sand blasting the inside of a mug would make it considered not food safe. Even when we use matte glazes on pottery it fails the "food safe" test if its used anyplace food or drink will be in contact and this is for numerous reasons. One issue is we do not know what kind of glaze has been used to glaze the cup. Some cups might use lead glaze, considering all the products that are coming from China these days its definitely possible the cup your using was glazed using a lead glaze. Sandblasting this would not be a good idea as lead and other not so nice particulates would be released. Sandblasting the outside of the mug however is not a problem.

[@Pooky1973]

@@bethechangeme2233 excellent points

[@felixdietzCGN]

I want the stop dissing plastic Video please 😊

[@KeithsTestGarage]

It will likely fit in nicely with the series that's coming up after the in-progress dust collection / jet fuel video.

[@hauptmanndosman]

Be very careful when sandblasting. You don't want to get silicosis.

[@filozofraf]

1. Why don't make a voiceover to protect your lungs? 2. You might make some kind of a chamber for this sandblaster :) It'll be a 30 bucks sandblaster, but steel - cheap :D Cheers!

[@KeithsTestGarage]

1) Time. 2) Space. 3) I don't sandblast and record audio at the same time often enough (probably never again) so a mask works. But, a sensible person who does this on a regular basis would be wise to follow your advice.

[@TomGarner99]

🤣😂