Calcium Borate Frit
- Sku - 2268
Typical analysis for Calcium Borate Frit 2268:
Al2O3 4-6% B2O3 48-52% CaO+MgO 25-28%…* This price has been rounded to the nearest pence.
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Description
Calcium Borate Frit
- Long established as the substitute for colemanite in glazes.
- Damp, coarse frit
- Specific gravity 2.58
- Viscous flow (% at 1050c) 85-115
- Typical Firing Range 800-1100c (not suitable for fast firing)
Typical analysis for Calcium Borate Frit 2268:
- Al2O3 4-6%
- B2O3 48-52%
- CaO+MgO 25-28%
- SiO2 16-19%
Technical notes regarding frits
Most frits, with the exception of lead based ones, can be used in stoneware glazes because the typical % addition would be less than 70%, quite often around 10-20%. Frits when manufactured are smelted at temperatures above 1200C so stoneware firing presents no problem. Our HT Borax frit 2265 is designed for use in primarily stoneware glaze as a major constituent where the higher additions are possible. The frit would typically by part of a recipe also containing feldspars etc. Stoneware glazes would not normally be based entirely on frits. The quoted firing ranges for frits are estimates of the usable range over which the frit could be used as the only component of a glaze, which almost never happens.
See our Technical Information Sheet "Safe Handling of Powdered Ceramic Materials"
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Delivery & Returns
Delivery & Returns
Full Delivery & Returns information at this link>
DELIVERIES
Current Delivery Times: Please check the latest update at this link>
Delivery Costs: Your carriage charge will be calculated at checkout based upon the volumetric weight of your order, and your location. If for any reason your delivery charge cannot be calculated at checkout, you will see a message explaining that our sales team will contact you with a quote. You will be under no obligation to accept this and have the right to cancel your order.
We deliver throughout the UK and overseas using a trusted third-party distribution network. Delivery is to kerbside or letterbox only.
Although carriers will endeavour to deliver within the agreed timeframe, unexpected delays due to weather conditions, breakdowns, traffic and other factors may cause some disruption to schedules.
IMPORTANT INFORMATION
We are bound by the terms and conditions of our carriers therefore we cannot pursue a claim if these instructions are not followed:-
Special Delivery Conditions: You must inform us at point of order of any special conditions such as restricted access or opening times, otherwise you will be liable for any consequential costs incurred.
Damage/Missing Items: You must check your delivery carefully before providing a ‘clear’ signature to the driver. Outward signs of damage/disruption to packaging must be noted alongside your signature. You must notify Potclays of damage or missing items within 24 hours of delivery.
RETURNS
Returned Goods (Non-faulty): Subject to our prior consent having been obtained, products can be returned to us in an unused condition within 30 days of invoice date. An administrative charge will be levied of 10% of the nett value plus transport, but subject to a minimum charge of £2.00.
Returned Goods (Faulty): If merchandise is returned because of some defect or due to error on our part, full credit/refund will be given. However, customers must contact us in advance so that making methods and user error can be ruled out.
