Graco AST421 421ST Rev-Tip Seal Airlessco Tip

Precision RAC 5 Spray Tip for Professional Interior Finishes

Compatible Machines

• All Graco RAC 5 Tip Guard equipped airless sprayers
• Graco Ultra Series Airless Sprayers
• Graco UltraMax Series Airless Sprayers
• Graco ST Max Series Airless Sprayers
• Graco 390 / 395 / 490 / 495 / 595 Series Airless Sprayers
• Graco FinishPro Series (Airless models with RAC 5 tip guard)
• Any sprayer using a RAC 5 7/8" Thread Tip Guard

Product Overview

The Graco AST421 Tip 421ST is a RAC 5 Reverse-A-Clean (RAC 5) spray tip designed for smooth and precise fine finish applications. It provides consistent atomization for doors, cabinets, trim, and other detailed interior surfaces.

Featuring a .021" orifice and a 16-inch fan pattern at 12 inches from the surface, the 421ST spray tip ensures even coverage for light to medium coatings.

Technical Specifications

Key Benefits

• Consistent Finish: Smooth coverage on trim, cabinets, doors, and interior surfaces.
• Precise Material Control: .021" orifice ensures accurate application without overspray.
• Reverse-A-Clean Feature: Quickly clears clogs with tip rotation.
• Quick Fit: Compatible with all standard RAC 5 tip guards.
• Durable Construction: Professional-grade design for repeated use.

Recommended Applications

The 421ST RAC 5 Tip is ideal for residential and light commercial interior projects that require fine, smooth finishes. Works well with latex paints, enamels, stains, and primers.

Frequently Asked Questions