WP and WDG additives

Wettable Powder (WP)

In wettable powder formulations (WP) the solid active is ground into fine particles. When mixed with water to create the spray mix, the WP must be wetted easily and suspend readily. This is achieved by adding appropriate adjuvants during the WP preparation process.

Key-factors:

  • Pesticides with high melting point
  • Almost no storage issues
  • High active loading
  • Compatible with other products in the spray mix

Water dispersible granules (WDG or WG)

In water dispersible granule formulations (WDG) the solid active is ground into fine particles and dried or extruded into granules. The dry formulation should be not too brittle in order to avoid the formation of dust. When mixed with water to create the spray mix, the WDG must spontaneously disperse without excessive foam formation. These requirements are achieved by adding appropriate adjuvants during the WDG preparation process.

Key-factors:

  • No dust formation
  • Easy to handle and to store
  • High active loading
  • Special equipment for manufacturing required.


General recipes

WP ingredients wt %
Active ingredient 10-80
Wetting agent 1-2
Dispersing agent 2-5
Antifoaming agent 0,1-1
Insert filler/carrier to 100
WDG ingredients wt %
Active ingredient 5-50
Wetting agent 1-5
Dispersing agent (blend) 0,1-2
Filler (blend) to 100

Products


Dispersing agents

Trade name Chemistry Property EPA
LUCRAMUL® DAC 210 dry Condensed cyclohexanone sulfonate Solid dispersing agent
LUCRAMUL® DAC 220 Condensed naphthalene sulfonate Solid dispersing agent
LUCRAMUL® DAC 300 Condensed alkyl naphthalene sulfonate Solid dispersing agent

EPA can be submitted on request


Defoamers

Trade name Chemistry Property EPA
LUCRAFOAM® DDF Sodium alkylate Solid defoamer