Using different coe enamels

[Lynne Smith]

Before I try this and waste good glass. I have a box of samples of Thompsons enamels for window glass. If I used these on either moretti or bullseye would it meant I would have a compatability problem or would the 15% theory apply. I can't see me ever using them for window glass now and it seems such a pity to let them go to waste.
Thanks,
Lynne S

[Steve Wright]

Lynne,

Those enamels have a COE in the 60s, not close enough to use with either Bullseye or Effetre.

Steve

[Lynne Smith]

thanks Steve. I suppose I will have to dig deep into the pocket to get the right ones.Its such a pain getting supplies to South Africa.
Lynne S

[Alan Cross]

Arn't those ones closer to 80 so you might be able to have some luck with them on Sys 96.....I just took this off there site.
Medium Temperature - Low Expansion Enamels for Window Glass and
400 Series (Magnetic) Stainless Steel
Normal firing temperature range for fusing: 1350-1450F
For slumping: 1500-1550F
Coefficient of expansion: Approx. 80 linear expansion
Available in 80 mesh powder, three sizes of frit
(small ~ 0.5-1.4mm; medium ~ 0.9-3.4mm; large ~ 2.4-4.8mm)
or Unground, unsifted enamel (size varies - approx. 1/8" to 2").


Alan :)