08707-PB109 Neptune Blue (PB109) - Overview. The 08707-PB109 Neptune Blue (PB109) is a genuine OEM touch-up paint designed for Honda marine engine systems. This high-quality paint supports the maintenance and repair of the exterior surfaces on compatible Honda marine engines by restoring the exact factory blue shade known as Neptune Blue. Its durable formulation ensures excellent adhesion and longevity in harsh marine environments, ensuring seamless integration with existing parts, maintaining o