Engineered with industry-proven Graco components, Graco FRP Proportioners and RS applicator guns provide you with a system that is technologically advanced, durable and long lasting, and affordable. Designed to deliver outstanding performance in an economical package Along with the GRACO RS gun, the GRACO system provides the industry?s best spray pattern with the highest transfer efficiency. RS gun is standard. 13:1 Material Pump is available in external or internal mix. Standard hose lengths are 25 ft. with 35 ft. or 50 ft. optional. System can be configured with wall-mount or cart, mast and boom. Not enough catalyst in the mix creates soft spots that take longer to cure. With Graco FRP Proportioners, you're assured of a consistent ratio for a consistent cure Resulting in higher quality parts and end products. In fact, the system is optimized for ratio stability. Lower cost of ownership: easy maintenance, fewer repair parts, long-lasting seals mean less downtime for maintenance, pumps last longer between planned maintenance, no surge bottle necessary, less parts, less solvent, and less resin needed to prime the pump. Typical applications: marine and watercraft, pool and spa, bathware, transportation, cultured marble.