SMP vs. PVDF

Silicone-Modified Polyester (SMP)

  • Siliconized polyester is composed of silicone additives in a base resin of polyester. The addition of silicone supplements the paint’s performance by improving gloss retention and weather resistance. Some manufacturers also add ceramic pigments to reduce color fading.
  • SMP is considered a good paint system that offers lasting performance at a more economical price.

Polyvinylidene Fluoride (PVDF) - Branded as Kynar

  • PVDF paints use a resin of 70% fluoropolymer/30% Acrylic, and are considered the most durable paint in the industry. The formulation provides the ultimate protection for metal roofs.
  • PVDF is considered a higher-end paint system that offers industry leading performance and a longer lasting, more durable finish.

Durability:

  • Kynar: Superior resistance to chalking, fading, and UV rays. Ideal for harsh conditions.
  • SMP: Durable but more prone to chalking and fading over time.

Flexibility:

  • Kynar: Highly flexible, reducing risk of fractures during installation.
  • SMP: Less flexible, potential issues during installation.

Appearance:

  • Kynar: Maintains color and gloss longer, less maintenance required.
  • SMP: May need more frequent maintenance due to chalking and fading.

Cost:

  • Kynar: More expensive, longer lifespan.
  • SMP: Budget-friendly, suitable for cost-constrained projects.

Color Charts