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Creative
Glazes
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Duncan Overglazes ~ Precious Metals and Lusters
Each precious metal or luster should have its own
brush! Mark each gold brush and Mother of Pearl brush to avoid contamination by
other paints.
Apply to surfaces that are free of dust, skin oils and
lotions to ensure proper adhesion. Wipe the surface with rubbing alcohol prior
to applying the overglaze (except when using over crackle glazes). Use only in
properly ventilated areas. Noxious fumes can be offensive. Be sure underlying
glaze is overglaze compatible. When using precious metals and lusters on the
same piece, apply and fire the metallics first.
Clean brushes with
Essence.
| OA901 | Essence Cleaner for brushes which are used with overglazes. Use a separate bottle of Essence for each overglaze product. Mark the bottles according to which overglaze product was used. Contamination can result if brushes and/or Essence used with one product come in contact with brushes and/or Essence used with another. For example, if you use Bright Gold and clean your brush in one bottle of Essence, then clean a brush used with Mother of Pearl in that same bottle of Essence, contamination will result and compromise all subsequent firings. |
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| OG801 Precious Metal |
Bright Gold - fire to cone 019-018 |
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| OG802 Precious Metal |
White Gold - fire to cone 019-018 |
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| OG803 Luster |
Mother-of-Pearl
- fire to cone 020 |
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| OG805 Precious Metal |
Premium Gold
- fire to cone 019-018 |
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Overglaze Tips & Techniques
These products are extremely prone to contamination.
Even sneezing near the open bottle will allow water to become encapsulated in
the product and affect the fired outcome.
1. Work in a well ventilated
area, not windy or dusty.
2. Because metals always settle, turn bottle over
and allow metals to fall, to mix the product to an even suspension. Do not
shake vigorously. This can cause tiny air bubbles which may look like black
spots on your fired gold.
3. Use a NEW or previously used brush dedicated to
that product only. For example, keep the brush for OG 805 clearly marked and
use only for OG 805.
4. Clean up with OA 901 Essence. Clean the brushes
thoroughly and allow them to air dry. Each overglaze should have its own
clearly marked bottle of Essence. Using the same bottle of Essence can cause
cross contamination and affect the fired outcome.
5. A second coat of gold
re-fired over the first one will improve the richness of the look.
6. In
cold weather, when the ware is cold or damp to the touch, heat up the pieces in
the oven to approximately 150 degrees and then apply the gold.
7. To apply
Mother of Pearl, use a cotton tipped swab. For small areas, wrap a small amount
of cotton on a toothpick and apply in the same manner, using a swirl or
circular motion. Simply discard, no brush to clean up!
Unfired Brite
Gold has a red appearance.
Unfired Premium Gold is dark amber.
Unfired
White Gold is dark green.
Unfired Mother of Pearl (MOP) is light
blue.
If fired hotter than recommended, MOP will have a frosted
appearance. Cooler firing leaves the color shiny and iridescent. If applied
over Satin glaze the MOP will be iridescent matte.
If fired hotter than
recommended Gold can result in a cracked or webbed finish. With a cooler firing
gold may rub off.
Simple, Secure, Convenient - Creative Glazes.
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