Doncaster Tel: 01709 770801

Simba Materials Limited t/a

CTM Potters Supplies Co Reg No 05659119

   Doncaster Fax : 01709 770803

doncaster@ctmpotterssupplies.co.uk     Unit 8 Broomhouse Lane Industrial Estate, Edlington, Doncaster DN12 1EQ

Delivery charges and VAT will be added on to all orders. Prices on this website and in all downloads are net of VAT. Prices are subject to change without notice.

Exeter Tel: 01395 233077

   Exeter Fax : 01395 233905

admin@ctmpotterssupplies.co.uk            Unit 19 Hogsbrook Units,Greendale Ind Estate EAST, White Cross Road, Woodbury Salterton, Exeter EX5 1PY

All prices are in GBP - often per kg - and need delivery and VAT to be added. For some items there are pictures or more information if you press on the link. You can order by email, phone, fax but but you cannot pay online - please see ORDERING

Please Note

Not all Brush-On’s are available in Powder but all Powder glazes are available as a Brush-On.  

The Earthenware Brush-On page has all the Brush-On’s including the ones on this page

Terracolor Earthenware Brush-On

These 1020-1060oC Earthenware glazes are mainly stain based but some have other materials in to create texture, speckle etc - so if you do sieve make sure that you put the speckles back in. Like most glazes two or three layers are better than one layer to create depth of colour.

All of these glazes are available as Brush-On’s - but not all Brush-On’s are available in Powder. So on this Terracolor Earthenware Brush-On page we have listed all of the Brush-On’s including the ones already shown on the Powder page.

# Where the colour is available as a powder the brush on pots are mixed by CTM Potters Supplies and not by Terracolor         VAT TO BE ADDED TO ALL PRICES

VAT to be added on to all Glaze Prices

Glaze Mixing

We recommend sieving the powder before mixing to break it up, adding back any speckles for speckled glazes.

We recommend using a powered hand mixer (drill with paddle spiral mixer or hand held blender for smaller lots) then sieve to ensure no agglomerated dry powder remains, and then rest it for two hours to allow any air to be absorbed and not create bubbles, pin holes when fired. For some glazes it is best to soak the powder with a little water first.

Dipping: Mix S/ware to double cream or slightly thinner to match the porosity of the bisque. Mix E/ware to single cream.

Typical dipping recipe is E/ware 750/790gm liquid to 1000gm powder; S/ware 690/700gm liquid to 1000gm powder.

 Recommended liquid is 85% water to 15% medium or 2% SCMC cellulose solution.

If you have problems keeping in suspension add 2% bentonite to the dry powder next time.

Brush On: Typical brush on recipe is 100gm powder to 40gm water and 50gm medium or 90gm of 2% SCMC Cellulose solution. For some dense glazes you may have to put in as much as 105gm of liquid.

If you have already mixed a quantity of glaze and it is falling out of suspension then you can use calcium chloride as a flocculent, particularly in E/ware glazes. Dissolve one flake in a small amount of hot water and then add to slop one drop at a time.

BROWSE - RING or EMAIL

We will price it up for you. Pay over the phone or you can do a bank transfer!

Wipe away the salts that are produced during bisque firing - they can reboil during glaze firing causing problems and also block the pores stopping a glaze from sticking.

Fast bisque firing can trap gasses in the piece which then expand during the glaze firing and split the piece to escape or cause underglazes to peel off, glazes to blister and leave pin holes behind. Slow bisque firing - especially from 750 - 950oC can work wonders in improving glaze firing problems.