Superfine microcrystalline Black silver Powder for Solar Back Electrode
Company Introduction
Founded in 2011, Hunan Guoyin New Materials Co., Ltd. is a high-tech enterprise specializing in the research, development, production and sales of high-performance silver powder and silver paste. Our factory is located in Wangcheng Economic Development Zone, Changsha City, Hunan Province.
We have advanced production and testing equipment, and has established testing methods similar to customers and a complete quality assurance system. And with more than 10 national invention patents, it has completely independent intellectual property rights. NSM care about the environmental protection and our future. Our products meet the EU's RoHS and REACH standards.
We adhere to "Quality first, Service first, Customers first". And got ISO9001: 2015 QMS certification, ISO14001: 2015 EMS certification & intellectual property management system certification, and all process of our production line is normalized and controllable. The outgoing quality rate of our products should be 100% to guarantee the best quality. Our high quality of products and service bring us the trust and faith of our customers.
Our products
Our main products are ultrafine microcrystalline silver powder, flake silver powder, solar cell positive / back electrode silver paste, 5G ceramic filter silver paste, chip component silver paste, glass ceramic series resistor / electrode paste, piezoelectric ceramic Silver paste, low-temperature flexible line silver paste and touch screen silver paste, etc.
Production Flowchart
Our certificates
Packing & Delivery
Below are our standard pacakge. Customized pacakge is available if special needed.
For the delivery, we normally choose DHL as long term partner due to the fastest delivery and smooth custom clearance.
And if you have better delivery way, it is also available. Please advise us.
| Product Description: black powder | |
| Recommended application:Solar back electrode silver paste, piezoelectric ceramics, conductive silver paste, etc. | |
| Index | Range |
| Tap Density(g/cm3) | 1.7-2.3 |
| Apparent density(g/cm3) | 0.7-1.3 |
| Specific area(m2/g) | 2.0-3.0 |
| Weight Loss 110(%) | ≤0.1 |
| Weight Loss 538(%) | ≤1.0 |
| Size Distribution(Malvern Mastersizer 2000) | |
| D50(μm) | ≤0.8 |
| D99(μm) | ≤10.0 |
Company Introduction
Founded in 2011, Hunan Guoyin New Materials Co., Ltd. is a high-tech enterprise specializing in the research, development, production and sales of high-performance silver powder and silver paste. Our factory is located in Wangcheng Economic Development Zone, Changsha City, Hunan Province.
We have advanced production and testing equipment, and has established testing methods similar to customers and a complete quality assurance system. And with more than 10 national invention patents, it has completely independent intellectual property rights. NSM care about the environmental protection and our future. Our products meet the EU's RoHS and REACH standards.
We adhere to "Quality first, Service first, Customers first". And got ISO9001: 2015 QMS certification, ISO14001: 2015 EMS certification & intellectual property management system certification, and all process of our production line is normalized and controllable. The outgoing quality rate of our products should be 100% to guarantee the best quality. Our high quality of products and service bring us the trust and faith of our customers.
Our products
Our main products are ultrafine microcrystalline silver powder, flake silver powder, solar cell positive / back electrode silver paste, 5G ceramic filter silver paste, chip component silver paste, glass ceramic series resistor / electrode paste, piezoelectric ceramic Silver paste, low-temperature flexible line silver paste and touch screen silver paste, etc.
Production Flowchart
Normally the typical steps for the electronic paste manufacturing is as below.
1) Raw materials inspection(mainly Ag and Al metal powder); 2) Materials adjust mixed and dispersion; 3) Rolled pulp; 4) Vacuumize; 5) Function Test(including Viscosity, fineness, conductivity, adhesion, solderability, etc.); 6) Package.
Our certificates
Packing & Delivery
Below are our standard pacakge. Customized pacakge is available if special needed.
For the delivery, we normally choose DHL as long term partner due to the fastest delivery and smooth custom clearance.
And if you have better delivery way, it is also available. Please advise us.