Dremel 876 Specifications download pdf (Page 25)

24

Problems & Solutions

Problem Cause Solution

Dipping glaze is too thick.

Dipping glaze loses water with use

through evaporation.

Add small quantities of distilled water

to glaze after dipping multiple pieces.

Cover glaze when not in use.

Smeared colors after firing.

a. Colors not dry prior to dipping or

brushing.

b. Color dragged or disturbed while

brushing clear glaze.

c. Incompatibility of other

manufacturer's product.

a. Allow colors to dry completely before

dipping or brushing.

b. Remove excess water from brush

before dipping in glaze. Water creates

a barrier between bristles and glaze.

Water softens the underlying colors,

enabling it to smear as it is brushed.

c. Some manufacturer’s glazes are

heavier and as a result, pull the colors

down into the glaze during the firing.

Pencil marks or lines left in fired color.

a. Pencil too sharp and carves into

surface of ware or color.

b. Wax type of pencil used.

c. Pencil or marking instrument was

used on wet greenware or color.

d. Top color did not cover or fill in

design.

a. Never use a freshly sharpened

pencil. Dull the tip on a piece of

paper by scribbling several times.

b. Some pencils have a waxy base

which cause the colors resist (i.e.

red marking pencil.)

c. Apply design on top of dry color or

greenware. Use a # 2 soft lead pencil

for best results.

d. Make sure when you fill in a design,

you go over the design line slightly.

Grit in glaze.

Fired or unfired clay dust in glaze. a. Before the bisque firing, remove

excess dust with a dusting brush

and a slightly damp sponge. Wipe

down ware before decorating with a

damp sponge.

b. Strain dipping glaze using 80 mesh

or finer sieve. Keep glaze tank

covered when not in use.

Fine black specks in flat ware.

a. Dirty thermocouples.

b. Soot being trapped glaze.

c. Aluminum filings from drying

racks.

a. Clean and vacuum kiln, wipe down

thermocouples periodically.

b. Allow more space between kiln

shelves. Vary the size and shapes of

pieces on the shelves.

c. Use non-metal shelving for drying

ware. As the shelves are pulled in

and out, the metal surfaces grind and

deposit filings on flat surfaces .

Dipping glaze too thin.

Dipping glaze over thinned. Dipping

glaze not stirred well.

Only add small quantities of distilled

water to thin glaze. Do not add

chemicals to thicken; let water

evaporate to thicken the glaze. Mix for

10 minutes using a mechanical drill

with glaze mixing blade.

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