Extender is a wetting additive used to extend the open time of any water based stain or topcoat:

• Easy to incorporate additive designed to slow the dry time and reduce the viscosity
  
• Designed for use in all General Finishes stains, sealers, finishes, paints, and glazes
• Greatly enhances open time, reduces brush marks and overspray
• Addition level: up to 20% as needed
• Does not adversely affect film properties. Mixes in easily without generating foam or air.