CTM Potters Supplies of Doncaster & Exeter              

Microkilns

Home Up

When choosing a size remember that the microkiln needs 2” headroom between the top of the kiln and the microwave ceiling.

A small kiln fires faster and cools down faster than a large one.

May be more efficient to run with two small ones

See below for ideas, hints and safety tips

Microwave not included in price

All Prices require delivery and VAT to be added. Prices are subject to change without notice.  

Code

Microkiln

External Dimensions

Internal Dimensions

£

MK1

Small Microkiln

120 mm diameter x 85 mm high

70 mm diameter x 40 mm high

£55.00

MK2

Medium Microkiln

170 mm diameter x 87 mm high

110 mm diameter x 45 mm high

£75.00

Code

Glass Frit Colour

200 g Pot

MK17-054

Black

£8.00

MK17-078

Opal Yellow

£8.00

MK17-061

Opal White

£8.00

MK17-134

Opal Brown

£8.00

MK17-075

Opal Green

£8.00

MK17-091

Opal Blue

£8.00

MK17-110

Crystal Clear

£7.00

MK17-121

Opal Red

£8.00

 

Code

Pack of 25 Squares

£ Pack

MK10

Clear Glass 25 x 25 mm

£3.00

MK11

Transparent Colours 25 x 25 mm

£3.00

MK12

Opaque Colours 25 x 25 mm

£3.00

MK13

Clear Glass 38 x 38 mm

£3.25

MK14

Transparent Colours 38 x 38 mm

£3.25

MK15

Opaque Colours 38 x 38 mm

£3.25

Code

Pack of 25 Squares

£ Pack

MK10

Clear Glass 25 x 25 mm

£3.00

MK11

Transparent Colours 25 x 25 mm

£3.00

MK12

Opaque Colours 25 x 25 mm

£3.00

MK13

Clear Glass 38 x 38 mm

£3.25

MK14

Transparent Colours 38 x 38 mm

£3.25

MK15

Opaque Colours 38 x 38 mm

£3.25

Code

Plaster Moulds

£

MK22-343

Triangle

£3.95

MK22-344

Heart

£3.95

MK22-345

Square

£3.95

MK22-346

Circle

£3.95

MK22-347

Star

£3.95

MK22-348

Oval

£3.95

MK22-349

Rectangle

£3.95

MK22-350

Octagon

£3.95

 

Code

Glass Fusing Mould

£

MK23-919

Jewellery Blank — Diamond

£5.95

MK23-920

Jewellery Blank — Oval

£5.95

MK23-921

Jewellery Blank — Bowtie

£5.95

MK23-922

Jewellery Blank — Long Triangle

£5.95

MK23-923

Jewellery Blank — Long Rectangle

£5.95

MK23-924

Jewellery Blank — Square

£5.95

MK23-925

Jewellery Blank — Hexagon

£5.95

MK23-926

Jewellery Blank — Triangle

£5.95

MK23-927

Jewellery Blank — Round

£5.95

MK23-928

Jewellery Blank — Teardrop

£5.95

MK23-929

Jewellery Blank — Trapezium

£5.95

MK23-930

Jewellery Blank — Heart

£5.95

Raku Tips with a Microkiln

Often used to do a comparison test of glazes on bisque tiles, a very fun use for microkilns is to make Raku Jewellery.

You can make Raku Jewellery by using a brush-on raku glaze such as our Spectrum range on bisque—firing at 800w for 3 minutes taking straight out of the kiln and placing straight into combustable materials in a biscuit tin

You can use the plaster moulds and the heat resistant hooks on the next page. It is a good idea to fire both earings at the same time and the pendant as well if you have room. Perhaps can use size 1 stilt to enable you to glaze both sides at the same time?

To cope with the thermal shock we would recommend that the bisque be made with Scarva Paperclay or a Porcelain clay.

Let your microwave kiln cool down fully between firings. Some schools use two/three microkilns but you should still let the microwave cool down as well every now and then.

You do not need to use ceramic fibre paper under bisque.

PLEASE READ THE SAFETY TIPS

Safety Tips

Let your microwave kiln cool down fully between firings and let the microwave cool down periodically as well.

We recommend using a refractory post under the kiln when it is firing in the microwave.

It will be very hot—so please be very careful when picking it up.

Always take the microkiln out of the microwave to cool down (approximately 20 minutes) —do not leave it in the microwave.

Adjust the firing time to the wattage being used. So if it takes 330 seconds at 900w it probably takes 270 seconds at 1100w, 370 seconds at 800w and 495 seconds at 600w. We do not recommend using over 1100w .

Always have at least 2” of clearance between the top of the microkiln and the ceiling of the microwave.

Always clean the inside of the microwave if you are going to use it for food afterwards—we recommend buying a second cheap one.

Small microkilns are quicker than medium or large microkilns. Be careful not to overfire.

After firing place the microkiln on a heat resistant batt or something similar ; do not place it under any cabinets or next to any combustable materials.

Do not leave the microkiln while it is in the microwave—there is a very slight danger of a flame extending out of the top hole—if it does shut down the microwave and carfully remove the microkiln.

When fusing place a cut piece of fibre paper on the bottom of the kiln so that any drips etc do not damage the microkiln.

PLEASE REMEMBER this is not a toy and should be used sensibly.

Customer Supplied Tips when Fusing Glass

Round the corners of a base which will be capped with a piece of glass with larger dimensions (an overhanging edge). This will help prevent shattering at the edges where the cap slumps over the corners.

Often better to use lower wattage and longer time for thicker pieces to prevent thermal shock.

When fusing place a cut piece of fibre paper on the bottom of the kiln so that any drips etc do not damage the microkiln.

Close the microwave door very carefully so your stacked project won't move!

You can safely affix small pieces of glass to be fused together as a stack of three pieces using a small portion of glue. When the glue dries the glass will not slide or topple over.

A stacked project generally should be maximum of 1/8" high. There is more control when you fire the bottom two layers , let the microkiln cool down and then add whatever else needs to be added and then refire.

A 1"x1" stack of 2 thin layers will eventually turn into a round, domed button if overfired. As you fire a 1"x1" square and then add another layer and fire, the corners of your project will "round" and a third firing will round it even more.

If you roll a small piece of fibre paper into a small roll (tube) and put it between two pieces of glass with the edges sticking out on both sides, it will make a channel that you can string chain through.

Dichroic glass requires hotter temperatures to melt than regular fusible glass.

 

All Prices require delivery and VAT to be added. Prices are subject to change without notice.

See Delivery & Terms & Conditions page for delivery charges etc

DONCASTER:

Open for collection 9.30am - 4.30pm Mon -Fri and from 10.00am to 3.00pm on the 1st Saturday of each month (check re: January) - if possible please ring your order through the previous working day.

Unit 8, Broomhouse Lane Ind Estate, Edlington, Doncaster DN12 1EQ

Tel : 01709 770 801 Fax: 01709 770 803 doncaster@ctmpotterssupplies.co.uk 

EXETER: 

Open for collection 9.30am-4.30pm Mon-Fri and from 10.00am to 3.00pm on the 1st Saturday of each month (check re: January) - if possible please ring your order through the previous working day.

Unit 10A, Millpark Ind. Estate, White Cross Road, Woodbury Salterton, nr Exeter EX5 1EL

Tel: 01395 233 077   Fax: 01395 233 905  admin@ctmpotterssupplies.co.uk  
 

Doncaster Branch - Telephone 01709 770 801 Fax 01709 770 803

Exeter Branch - Telephone  01395 233 077  Fax 01395 233 905

Although you must treat the prices and information on the site and catalogue as a guide only as prices and availability can change at any time - this is the latest May 2013 catalogue 2013A Potters Supplies CATALOGUE pdf .

CTM Potters Supplies is a trading name for Simba Materials Limited www.simbamaterials.co.uk - Co Reg No 5659119; VAT No GB873606309

Send mail to doncaster@ctmpotterssupplies.co.uk  in Doncaster with questions or comments about this web site.
Last modified: January 30, 2013