Zhejiang Longyou GD Chemical Industry Co., Ltd is founded in January 2004. As a high-tech private corporation, it is specialized in research, production, application and sales of environment-friendly and halogen-free ammonium polyphosphate series flame retardants. Our chief products are as following:

1,GD-APP101 Crystalline II ammonium polyphosphate(APP) with high polymerization degree flame retardants,
2,GD-APP102 Melamine cladding ammonium polyphosphate flame retardants,
3,GD-APP103 Epoxy resin cladding ammonium polyphosphate flame retardants,
4,GD-APP104 Non-Halogen Intumescent Flame Retardant For Polyolefines (Compounding ammonium polyphosphate) .

Ammonium polyphosphate with high polymerization degree is a high-quality non-halogenated flame retardant for intumescent coatings,paints and engineering plastics.The pruduct is largely insoluble in water and completely insoluble in organic solvent. It is white, non-hygroscopic and non-flammable,whose crystalline form is II,n>1000.

Our company insists on the service attitude of scheming for customers, has a professional marketing team. Our products have first class quality in the world (especially GD-APP101 ammonium polyphosphate with high polymerization degree ,this product equivalent to Clariant GmbH's Exolit AP 422 and 423 ) and competitive prices in the market, which qualifies the needs of customers at home and abroad. Our products have been sold to Europe, North American and South-east Asia countries. We also has established good business relation with many producer of different provinces in china.

We manages the enterprise according to ISO9001:2002 standard, it has a high-tech researching and development team, and establishes tight coorporation with many research agencies, universities and enterprises in researching, development and application. It has built subject lab, application lab and modification lab. There are advanced and complete analysis instruments in our company, such as laser grain-size instrument, different temperature analysis instrument, cigarette density instrument, viscidity instrument, white degree instrument , moisture content analysis instrument, SEM electric scanning instrument, volume resistance instrument etc.

"Quality, Prestige and Service" is the foundation and guarantee of realizing the innovation and great-leap-forward development of our company. The more concern to us, the more repayment and value to you.