Plastisols adhere well to natural fibers, such as cotton, which makes them a very suitable fabric coating. Synthetic fibers usually require adhesive additives/primers for proper adhesion.  Since a thin to thick coating of plastisol may be applied with one pass on fabric, this makes plastisol a cost competitive choice vs other processes that require solvent and/or multiple passes to build-up the thickness.  Lakeside Polymer Services has a number of proprietary adhesive aids, formulations, and extensive experience to help the fabric coater obtain and improve proper substrate adhesion. 

Proper formulation will allow for

  • Desired coat thickness
  • Chemical resistance
  • Soft hand
  • Exterior applications
  • Desired color
  • Processing variation:
    • spread coating
    • knife coating
      • One of the simplest forms to coat a flat sheet of vinyl from plastisol. A stationary knife sets the distance between the coating blade and the fabric/web, which controls the amount of plastisol for the coating thickness.
    • roll coating
      • Liquid is supplied to two rollers that travel in the same direction as the fabric/web. Since plastisols are higher in viscosity, controlling the level of coating weight can be challenging. To help control the coating weight, reverse roll coating is commonly utilized.
    • reverse roll coating
      • Typical reverse roll coating utilizes three rolls. The plastisol is metered through a precise nip between a metering roll and an applicator roll rotating in the opposite direction. The plastisol coating on the applicator roll is then transferred onto the fabric/web. When properly set, reverse roll coating can handle a plastisol viscosity with a wide range.
    • curtain coating
    • spray coating
    • saturation