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Notice: We are committe that all glass is made of borosilicate glass.
Please distinguish ordinary glass, tempered glass, high borosilicate glass. Some Sellers list ordinary glass or tempered glass as borosilicate glass sales.Keep in mind that borosilicate glass cannot be that cheap.
Borosilicate heat resistant glass is a kind of "cooked glass", the cost is very expensive, fully meet the international environmental protection standards. Due to the requirements of the performance of heat resistance and instantaneous temperature difference, high boron silicon material to replace the "glass" in a large number of lead, zinc and other harmful heavy metal ion composition, so its brittleness and weight is far less than the common life in the "glass", but also ensures the instantaneous temperature changed under the condition of not the crack phenomenon, compared to contain large amounts of heavy metal ions in the weight on the "glass" to be lighter and more, in appearance like ordinary glass also have the difference, the vision from the "glass" hard and brittle feeling.
1, raw material composition: high borosilicate glass, containing three oxidation of two boron and silica content, ordinary glass is higher, boron content can even reach 14%, containing silicon amount to 80%. Ordinary flat glass of silicon content of about 70%, ordinary glass, usually without boron, but sometimes the most plus 1%
2, glass features: high Peng glass coefficient of expansion is low, softening point high, cold resistance, quick heating performance is good. Its expansion coefficient is about 32~33*10 (-7), the average glass is about 80-100*10 (-7), and the resistance to hot and cold can reach 200~300 degrees celsius.
Product specification:
300*300*3 high borosilicate glass, refined grinding edge processing, do not worry about safety when applying it
Specifications 1:300*300*3 mm Shinny Finish
Specification 2:300*300*3 mm One Side Matte Finish
The advantages of borosilicate glass compared to tempered glass:
1: high boron silicon material, high transparency
2: suitable for high temperature equipment observation mirror. High pressure resistance
3: corrosion resistance. In addition to hydrofluoric acid, high borosilicate glass almost does not react with other acids. Its acid resistance is 30 times of that of ceramics. 150 times of stainless steel,
The chemical stability, especially at high temperatures, is unmatched by any other engineering material.
4: good thermal stability. The high borosilicate glass has a very small coefficient of thermal expansion, and can withstand severe temperature changes. The borosilicate glass is heated to about 500 degrees centigrade,
5: good light transmission performance. The high borosilicate glass has better transmittance in the whole spectrum range of ultraviolet to infrared, and the transmittance of visible light is above 93%,
Especially in the UV spectrum, the maximum transmittance is above 80.
6: high borosilicate glass is widely used in electric light source, semiconductor, optical communication, war industry, metallurgy, building material because of its excellent physical and chemical properties,
Chemical, mechanical, electrical, environmental and other fields.
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Return Policy
If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service
On-time Delivery: If you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).Hurry! New Funssor 3D printer large-size printing glass plate 300*300*3mm borosilicate glass heating bed
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