Dremel 876 Specifications download pdf (Page 24)

23

Problems & Solutions

Reds fade in the firing, turning white

to dark gray.

a. Glaze was applied too thinly.

b. Insufficient ventilation in kiln

during firing.

c. Fired too hot or slow.

a. Reds need 4 coats of glaze. If this

has happened to you before, start

applying the extra coat before firing.

Allow to dry completely between

coats.

b. Allow extra room around the piece

in the kiln. Vent the kiln until the

kiln has been turned or gone to high.

c. Fire quicker than normal to shelf

cone 06. Sometimes can be reglazed

and re-fired to correct.

White or black spots in red glaze.

Contamination from salts or something

in the brush.

Make sure your hands, the brush and

the piece are clean before glazing. Do

not use the same brush for stains and

glazes. Reserve brushes specifically for

red glazes. This is difficult to correct

after firing.

Clear Matte is milky.

Glaze was applied too heavily. Thin the glaze to a milk consistency

and apply 2-3 coats. Sometimes firing

hotter will reduce the milkiness, but the

matte glaze will be shinier.

Problem Cause Solution

Dipping glaze has purple or green

line down piece.

Dipping glaze too heavy in one spot,

where glaze has been overlapped while

dipping.

Dip each side to a 1/4" of each other

and brush the clear glaze together with

a fan brush.

Glaze rolls back.

a. The glaze was applied too heavily,

without sufficient drying time

between the applications of color.

b. Piece was fired when it was too wet.

c. Glaze not adhered to previous

coat(s).

d. Oil or grease on piece.

a. Allow glaze to dry between coats,

applying thinner coats.

b. After glazing allow 24 hours before

firing.

c. When applying dots make sure color

has made sufficient contact to piece.

d. Make sure the surface of ware is

clean; wipe down with a damp

sponge before decorating and make

sure hands are clean. Sometimes

corrected by sanding down

rollback, reapplying color,

reglazing and refiring.

Purple Stroke & Coat colors are

discolored or gray looking.

a. Water vapor escaping during the

firing process is trapped in glaze.

b. Use of non-toxic clear glaze on

top of colors.

a. Allow the piece to dry completely

before firing. Use a slow ramp speed

for the temperature.

b. Some non-toxic clear glazes react with

purple, producing a white hazy look.

Sometimes refiring will help clear up

the color. To achieve the best color

development, clear glaze with either a

leaded clear glaze or Mayco’s non-

toxic, lead-free dipping glaze, SC-209.

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