Adhesion Promoters

Promoters to improve adhesion to metal, plastic, e-coat, and more in sealants, coatings, and molding systems.
PICO’s Adhesion Promoters include polyamide-based promoters for heat-fused vinyl systems and blocked isocyanate promoters for high-performance bonding in automotive sealers and primers. These advanced resins support wet-on-wet application, reduce staining, and enhance adhesion across complex substrates.

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Featured PICO Adhesion Promoters:

Polyamide Promoters:

  • APR 45: Concentrated polyamidoamine adhesion promoter for PVC plastisols and organosols. Promotes strong adhesion to metals, fabrics, and plastics during vinyl heat fusion.
  • APR 46: Polyamidoamine (DOP) resin designed for PVC systems. Offers strong multi-substrate adhesion with improved plastisol viscosity stability and minimal discoloration.
  • APR 48: Aromatic polyamidoamine for high-strength, low-temperature vinyl adhesion. Ideal for wet-on-wet applications like automotive sealers and underbody coatings.
  • APR MM: Multi-metal adhesion promoter with excellent color stability and wet-on-wet performance. Effective at low cure temps; compatible with e-coated, aluminum, and steel surfaces.
  • APR 410: DINP-based polyamide resin for high-strength vinyl adhesion. Delivers excellent color stability and performance in underbody coatings and non-visible sealers.
  • APR 418: DINP-based adhesion promoter with stable viscosity and strong adhesion across metals and plastics. Low discoloration and ideal for pre-blending in plastisol systems.

Blocked Isocyanate Promoters:

  • APR 49: Blocked isocyanate resin for PVC plastisols used in automotive sealants and anti-chip primers. Offers strong wet-on-wet adhesion with excellent color stability and plastisol performance.
  • APR 50: Nonylphenol-free DIDP resin designed to replace traditional materials in sealants and primers. Delivers safer handling, color stability, and high-performance bonding to electrocoat surfaces.
  • APR 51: Next-gen, low-viscosity nonylphenol-free promoter with improved elongation and abrasion resistance. Enables lower-temperature cures and reduced processing time.
  • APR 52: Advanced nonylphenol-free resin supporting low-VOC plastisol formulations. Reduces energy use while providing high adhesion, flexibility, and aging stability in automotive applications.

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