1.       B301 lithopone

Voluntary standards: GB/T1707-1995

Characteristics: White pigment, zinc sulfate content is 28%. Hiding power is stronger than zinc oxide,lower than titanium dioxide,good heat endurance.

Range of application: Coating, paint producing, printing ink, plastic,rubber, paper making, enamel etc..

Packing: Plastic weaving bag with polyethylene liner or paper bag,50kg or 25kg per bag

 

  Specification:

Sumtotal of zinc(base on zinc sulfate and barium sulfate (m/m):99% min  

Total zinc amount(base on zinc sulfate) (m/m): 28% min                

Zinc oxide(m/m) : 0.6% max                                    

105°C volatile(m/m): 0.3% max                                       

After Soluble in water%(m/m): 0.4% max                              

Residue on sieve (63um sieve pore) (m/m): 0.1% max                  

Oil absorption, g/100g: 14 max                                        

Reducing power(compare with standard sample): 105% min            
 

2.      B302 lithopone

Voluntary standards: GB/T1707-1995

Characteristics: White pigment, zinc sulfate content is 28%. Dispersancy is better than B301 after surface preparation.

Range of application: Coating, paint producing, printing ink, plastic, rubber, paper making etc

Packing: Plastic weaving bag with polyethylene liner or paper bag,50kg or 25kg per bag

 

Specification:

Sumtotal of zinc(base on zinc sulfate and barium sulfate (m/m):99% min  

Total zinc amount(base on zinc sulfate) (m/m): 28% min                

Zinc oxide(m/m) : 0.3% max                                        

105°C volatile(m/m): 0.3% max                                      

After Soluble in water%(m/m): 0.4% max                              

Residue on sieve (63um sieve pore) (m/m): 0.1% max                  

Oil absorption, g/100g: 11 max                                   

Reducing power(compare with standard sample): 105% min        
 

3.       B311 lithopone

Voluntary standards: GB/T1707-1995

Characteristics: White pigment,zinc sulfate content is 30%. Stronger hiding power and reducing power than B301. Better dispersancy.

Range of application: Coating, paint producing, printing ink, plastic,rubber, paper making, enamel etc..

Packing: Plastic weaving bag with polyethylene liner or paper bag,50kg or 25kg per bag