Product Description

Product Name: Schott Borofloat 33 borosilicate glass

Glass Type: High borosilicate glass

Size: 2inches=50.8mm. Or contact us for customization.

Thickness:0.4/0.5mm. Or contact us for customization.

Product Name

BF33 Glass Sheet

Component

SiO₂ 81%, B2O3 13%, Na₂O/K₂O 4%, Al₂O₃ 2% 

Product tolerance

±0.1mm

Transmittance

325nm-2000nm >90%

Thermal expansion coefficient α (20~300 ℃)

3.25*10-6/K

Glass transition temperature Tg

525℃

Refractive index

1.4714(nd)

transmissivity

92.7τ γD65in%

Abbe

1064nm

Density ρ

2.23g/cm3

Young's modulus E

64Kn/mm2

Poisson's ratio

0.20

water resistance

HGB1(DIN ISO 719)

Acid resistance

S1(DIN12116)

Alkali

A2(DIN ISO 595)

Dielectric constant ε r @ 1GHz

4.5

Loss factor tanδin10-4@1GHz

51

Features: Outstanding thermal resistance; Exceptionally high transparency; High chemical durability; Excellent mechanical strength.

Application: experimental exploration, technological products, electronic products, optical instruments, etc.

Contact Us: 

(1). If there's any problem, please do not hesitate to contact us by ebay message, we will reply you within 1 business day(not include Public holiday).

(2). Work Hours: Monday to Friday(8:30-17:30)

(3). If you don't get response within 1-2 business days, please check your eBay email or My Messages in case your email provider has an overly-aggressive spam filter blocking eBay or my emails. Please add us in your contact and email us again.

Payment Terms

1. There is any VAT tax that happens during import in the buyer's country, it should be paid by the buyer.

2. Payment must be received within 7 business days of auction closing.

3. All our items will be shipped to buyer's payment address. So please check your shipping address before you make the payment.

Shipping Terms

1. Normally, we will arrange the shipment within 5 business days of receipt of payments.

2. A tracking number will be update to the buyer at the time of shipment.

3. The default shipping method is Orange Connex SpeedPAK. Please kindly contact us if you would like express way which will take about 1 weeks in transmit, we will tell you how much extra fee you need to pay.

Feedback

When you receive the item and satisfied with the product, please leave us positive feedback and 5 scores DSR. We will leave 5 Scores DSR feedback for you. 

 

If for any reason you are not satisfied with your purchase, please contact us via Ebay Message and we will do our best to resolve it .

Return & Refund policy:

(1). We fully guarantee our items. All items are in brand new condition unless specified otherwise elsewhere in the description.

(2). All returns -  defective or otherwise - have to be pre-authorized. Please contact us to  get an authorization and returning address before sending the item back.

(3). In all cases,  buyers pay shipping fees at their own cost to return products for  exchange or refund. We will be responsible for the postage of  replacements.

(4). Replacement will be made upon receipt of the returned item.