Commercial Clear Recommendations Needed

[Evezamora]

Can anyone recommend commercial cone 6 gloss clear and satin clear with and without zinc?

 

I've used Amaco HF9 with good results except it fails over mason stains that need zinc.

 

I've used Amaco HF12 with poor results.  It picks up underglaze colors.  For example I had a pot that was underglazed white with one circle of blue underglaze on greenware.  I applied HF12 to the bisque and it came out looking like I had applied a blue colorwash.  The blue circle was still distinguishable, but the white portions were also covered in blue.

 

Basically I need three clears: satin w/out zinc; satin w/zinc; gloss w/zinc.

 

Thanks,

Eve

 

 

[firenflux]

No idea if these have zinc or not, but I use both Coyote clear and Mayco stoneware clear over underglaze with much success.