Holds the Key Ingredient... Contents
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2016 holds the key ingredient... Contents About Us 3 How To Choose The Right Clay For You 4 Our Clays 6 Terracotta 6 Alex Shimwell Stoneware 7 Earthstones 10 Professional 13 Porcelain 16 Earthenware 17 French Regional Clays 18 Paper Clays 18 Powdered Clays 19 Slips 21 Casting Slips 21 Pouring Slips 21 Decorating Slips 21 Raw Materials 22 China/Ball Clays 22 Raw Clays 22 Fluxes 22 Oxides 23 Groggs 23 Plasters 23 Deflocculants 23 Sundry Materials 24 Custom Clay Formulas & Special Order Clays 25 Warranties & Responsibilities 25 Technical Information 26 Jane Wheeler 2016 Price List 30 Distributors 34 Front cover images are provided by... Top: Clare Wakefield Bottom: Beverley Gee, Garry & Pollie Uttley, Susanne Luckacs-Ringel 2 INFO About Us In the heart of the potteries over the past 36 years over 90 clay bodies to choose from Valentine Clays has Valentine Clays, a family run manufacturer, has worked ensured that there is a product to suit a potters every directly with the studio potter community formulating need whether you are a beginner or a professional. and fine tuning clays using the best possible ingredients. For advice or help with any technical issues please call This close working relationship enables the world-leading 01782 271200 or email [email protected] clay manufacturer and raw materials supplier; based we will be only too pleased to help. in Stoke-on-Trent, to successfully develop ceramic clay bodies to suit the specific requirements of a long list of renowned British and International potters. The team at Valentine Clays prides itself on constant development of new and innovative clays bodies using Kind regards, the latest ceramic manufacturing equipment; with The Valentine Clays Team Thank you to the studio potters whose images, taken from our online gallery, have been used in this brochure. Our online gallery is a showcase of talented artists that use Valentine clay’s products. To join our gallery please visit www.valentineclays.co.uk/join-our-gallery Hayley-Jay Daniels 3 INFO How to choose the right clay for you With so many options currently in the market, whether you are a beginner or professional Potter choosing the right clay can be a difficult decision. Over the past 30 years we have worked directly with the studio potter community formulating and fine tuning clays using the best possible ingredients. This close working relationship has enabled us to identify 7 key areas that should be considered when making your decision. 1. 3. Firing range of your kiln Size of your work The firing range of your kiln should be the first Another key area is the size of work you plan to create, consideration for any potter, as this will determine which larger pieces often require a more heavily grogged type of clays you will be able to use. Lower temperature clay whereas smaller pieces of work can require more kilns are more suitable to earthernwares where as higher plasticity. temperature kilns can accommodate porcelains and stonewares. The glaze you use with your chosen clay body is also affected by the temperature of your kiln. 4. Texture you would like to create 2. Texture of the clay body you choose is equally as vital Application you plan to use when identifying the best clay for use. The feel and look of the ceramic piece you are creating is affected by the The type of work that you intend to create is also an amount of grogg within the clay body. No grogg will important factor when considering the most appropriate result in a smooth polished finish, a fine grogg will give clay. What methods you choose to use whether it will be some strength and stability, or by increasing the grogg thrown, handbuilt, sculptured or modelled will dictate size and percentage within the clay you will be able to this in the same way the end use of ornamental, inside achieve a coarser finish and high strength result. or outside use, functional, domestic or oven to tableware will. 5. Fired colour a key factor From Terracottas to Porcelains and now black clays there is even more choice for the studio potter. As most clay bodies can also vary with temperature the decision is even more difficult. 4 INFO Firing range - Jim Robison unloads kiln Application of work - Kevin Millward Size of work - Jim Robison making a Rufford vase 6. Other useful tips: Glaze compatibility and application Technical Information Chart On page 26 the technical information chart has been Glaze compatibility and application can be a technical designed to help you when making your decision on process and is important to test with the clay you choose. what clay is right to use. The chart offers information The temperature of your kiln is also a contributing on chemical analysis, contraction, thermal expansion, factor when considering the most appropriate clay and texture & fired colour. Some or all of these factors may be compatible glaze. important to you and the project you are creating. If you need help to make your decisions, call our technical team on 01782 271200 or email [email protected] 7. Clay Hardness Samples and Testing Our clays are produced to a medium consistency of 6.5 – 7 as measured by a Penetrometer (clay hardness tester): The most important key area is testing as this will determine the ideal clay for use. Once the appropriate Clay Hardness Rating clay bodies have been chosen based on the above key areas then samples are the best method for testing. Description Hardness Soft 6.0 – 6.5 Contact us Medium 6.5 – 7.0 Firm 7.0 – 8.0 For technical advice, further information or free samples (plus £11.50 + VAT postage & packaging) please call 01782 271200 or email [email protected] 5 CLAYS TERRACOTTA CLAYS Our Clays An extremely popular range of general purpose clays based on a blend of Etruria Marls. The 7 key areas described previously are incorporated into our list of over 90 clay bodies to help when choosing Standard Red Terracotta the right clay for you. Categories to choose from include: CATEGORY: Terracotta METHOD: Throwing, Modelling, • Terracotta • Earthenware Casting • Stoneware • French Regional Clays COLOUR: Red TEXTURE: Smooth • Earthstones • Paper Clays FIRING RANGE: 1080°C - 1180°C • Professional • Powdered Clays • Porcelain An extremely popular general purpose clay based on a blend of Etruria Marls. With Method, Colour, Texture, and Firing Range also included in each clay description as a further guide to Standard Red Terracotta Grogged help. - 10% CATEGORY: Terracotta To order please call 01782 271200 or visit our online METHOD: Throwing, Modelling shop at www.valentineclays.co.uk COLOUR: Red TEXTURE: Smooth Textured FIRING RANGE: 1080°C - 1180°C The addition of grogg (10%) in this body improves strength in throwing and increases resistance to cracking and warping especially on larger pieces. Standard Red Terracotta Grogged - 20% CATEGORY: Terracotta METHOD: Throwing, Modelling, Hand building COLOUR: Red TEXTURE: Medium Textured FIRING RANGE: 1080°C - 1180°C The addition of grogg (20%) in this body improves strength in throwing and increases resistance to cracking and warping especially on larger pieces. Terracotta Fine 120s CATEGORY: Terracotta METHOD: Throwing, Casting COLOUR: Red TEXTURE: Very Smooth FIRING RANGE: 1080°C - 1180°C Emma Rodgers 6 CLAYS A general blend of Etruria Marls produced to a much finer Stoneware V9G degree giving a pleasing smooth finish. CATEGORY: Stoneware METHOD: Throwing, Modelling COLOUR: Buff Terracotta V636 TEXTURE: Smooth Textured CATEGORY: Terracotta FIRING RANGE: 1120°C - 1280°C METHOD: Throwing, Modelling, Casting The addition of grogg gives good resistance to cracking COLOUR: Red and warping. V9G behaves well under oxidising and TEXTURE: Smooth reduction conditions. FIRING RANGE: 1080°C - 1160°C A very well behaved clay resulting from a blend of Etruria Stoneware HT Marls and Shropshire Fire Clays. CATEGORY: Stoneware METHOD: Throwing, Modelling, Casting Terracotta Sculpture Clay COLOUR: Buff CATEGORY: Terracotta TEXTURE: Smooth METHOD: Modelling, Hand building FIRING RANGE: 1120°C - 1280°C COLOUR: Red TEXTURE: Coarse Textured This stoneware body is especially recommended for FIRING RANGE: 1080°C - 1220°C reduction and contains a fine grogg free of dust faction. A newly developed clay containing a good degree of medium to coarse grogg. Gives open texture yet retaining Stoneware HTG a good degree of plasticity and has a good resistance CATEGORY: Stoneware to thermal shock. Suitable for large sculptural work, METHOD: Throwing, Modelling gardenware, slab work etc. COLOUR: Buff TEXTURE: Smooth Textured FIRING RANGE: 1120°C - 1280°C STONEWARE CLAYS Same as Stoneware HT but with the addition of a mesh graded dust free grogg. Produced using a blend of fireclays, ball clays and china clays - Stoneware clays have a wide firing range and are suitable for a variety of uses. Stoneware HT Special CATEGORY: Stoneware METHOD: Throwing, Modelling Stoneware V9A COLOUR: Buff CATEGORY: Stoneware TEXTURE: Smooth METHOD: Throwing, Modelling, FIRING RANGE: 1120°C - 1280°C Casting COLOUR: Buff Same as Stoneware HT but contains TEXTURE: Smooth extra additives to increase resistance of thermal shock. FIRING RANGE: 1120°C - 1280°C Suitable for oven to tableware. An excellent general purpose modelling clay, which contains Shropshire & South Staffordshire Fire Clays with a fine graded dust free grogg. 7 CLAYS Stoneware Delta Stoneware B17C Grogg CATEGORY: Stoneware CATEGORY: Stoneware METHOD: Throwing, Modelling, METHOD: Throwing, Modelling, Hand Casting building COLOUR: Buff COLOUR: Off White TEXTURE: Smooth Textured TEXTURE: Smooth Textured FIRING RANGE: 1120°C - 1280°C FIRING RANGE: 1120°C - 1280°C A pronounced speckle will appear through glaze under Same as Stoneware B17C but with the addition of a mesh oxidising conditions. graded dust free grogg. Stoneware Special Fleck Stoneware Millennium White CATEGORY: Stoneware CATEGORY: Stoneware METHOD: Throwing, Modelling METHOD: Throwing, Modelling, COLOUR: Buff Casting TEXTURE: Smooth Textured COLOUR: White FIRING RANGE: 1120°C - 1280°C TEXTURE: Smooth FIRING RANGE: 1080°C - 1260°C A carefully blended natural stoneware which speckles attractively under normal conditions.