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Morells Barn • Park Lane • Lower Bognor Road • Lagness • Chichester • West Sussex • PO20 1LR
Telephone: 01243 265845 • Fax: 01243 267582
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| Code |
Grogs |
2.5kg
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5kg |
10kg |
12.5kg |
25kg |
50kg
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250kg |
| 5304 |
FIREBRICK GROG - 85's to DUST |
3.50 |
6.22 |
11.08 |
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20.80 |
36.64 |
170.10 |
| 5308 |
MOLOCHITE - 30's |
7.44 |
11.56 |
19.08 |
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38.18 |
74.70 |
346.20 |
| 5309 |
MOLOCHITE - 50's to 80's |
7.46 |
11.70 |
19.68 |
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39.90 |
72.26 |
325.30 |
| 5310 |
MOLOCHITE - 120's |
7.67 |
12.06 |
20.28 |
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40.17 |
77.10 |
357.90 |
| 5311 |
MOLOCHITE - 200's |
7.67 |
12.06 |
20.28 |
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40.17 |
77.10 |
357.90 |
| 5312 |
MOLOCHITE - 80's |
7.67 |
12.06 |
20.28 |
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40.17 |
77.10 |
357.90 |
| 5315 |
CORDIERITE - +50's |
4.10 |
7.86 |
14.72 |
17.43 |
20.62 |
37.08 |
176.00 |
| 5316 |
CHAMOTTE - -1.00 +0.5mm |
3.64 |
6.86 |
12.88 |
15.28 |
17.10 |
30.78 |
146.00 |
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| 5304 - FIREBRICK GROG - 85's to DUST |
| Chemical Analysis: |
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Details to follow.
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| Health & Safety Data |
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Pack size: 2.5kg (5kg and 10kg are supplied as multiples of this pack size) and 25kg.
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| 5308 - MOLOCHITE - -30's |
| Chemical Analysis: 37% Al2O2 48% SiO2 |
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Cornish sourced grog, used to introduce texture to white bodies. Calcined china clay.
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| Health & Safety Data |
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Pack size: 2.5kg (5kg and 10kg are supplied as multiples of this pack size) and 25kg.
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| 5309 - MOLOCHITE - 50's to 80's |
| Chemical Analysis: 37% Al2O2 48% SiO2 |
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Cornish sourced grog, used to introduce texture to white bodies. A graded version that should little dust compared to other versions available. Calcined china clay.
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| Health & Safety Data |
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Pack size: 2.5kg (5kg and 10kg are supplied as multiples of this pack size) and 25kg.
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| 5310 - MOLOCHITE - -120's |
| Chemical Analysis: 37% Al2O2 48% SiO2 |
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Cornish sourced medium to fine sized grog for white bodies.
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| Health & Safety Data |
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Pack size: 2.5kg (5kg and 10kg are supplied as multiples of this pack size) and 25kg.
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| 5311 - MOLOCHITE - -200's |
| Chemical Analysis: 37% Al2O2 48% SiO2 |
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Cornish sourced. A high temperature calcined china clay (kaolin) used to raise maturing temperature of glazes. Reduces crawling tendency in glazes which have a high clay content.
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| Health & Safety Data |
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Pack size: 2.5kg (5kg and 10kg are supplied as multiples of this pack size) and 25kg.
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| 5312 - MOLOCHITE - -80's |
| Chemical Analysis: 37% Al2O2 48% SiO2 |
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Cornish sourced grog, used to introduce texture to white bodies.
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| Health & Safety Data |
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Pack size: 2.5kg (5kg and 10kg are supplied as multiples of this pack size) and 25kg.
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| 5315 - CORDIERITE +50's |
| Chemical Analysis: N/A |
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Made from crushed virgin kiln shelves. These grogs do not suffer from the "lime-popping" problems that have been associated with firebrick grogs in the past.
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| Health & Safety Data |
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Pack size: 2.5kg (5kg and 10kg are supplied as multiples of this pack size), 12.5kg and 25kg.
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| 5316 - CHAMOTTE -1.00 + 0.5mm |
| Chemical Analysis: N/A |
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A grog that fires off-white and has similar properties to molochite, but is less expensive
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| Health & Safety Data |
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Pack size: 2.5kg (5kg and 10kg are supplied as multiples of this pack size), 12.5kg and 25kg.
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Architectural ceramics made by Mick Pinner at West Meon Pottery includes various grades of grog.
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WHAT ARE GROGS?
Grog is a material that is added to clay bodies to aid plastic strength and refractoriness. It can also assist with warp resistance in the manufacture of flat or slab work.
The common grogs available are:
Chamotte
These grogs fire off-white and have similar properties to molochite, but are less expensive than molochites.
Cordierite
Made by crushing virgin kiln shelves,they are currently the alternative to firebrick grog. These grogs do not suffer from the "lime-popping" problems that have been associated with firebrick grogs in the past.
Silica Sand
These can be sourced in various grades and with varying iron content. We supply a medium white and buff sand. See under Raw Materials.
Molochite
Made by calcining china clay. Fine grades can be added to slips to reduce shrinkage. Fine to medium grades are added to white bodies to aid plastic strength and refractoriness. Coarse grades are added to white bodies to impart texture and thermal shock properties. |
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