SG-150 Spray Systems

Hand-held Spray Guns for Coating and Masking

Dymax SG-150 hand-held spray guns, available in both standard and high flow models, provide a solution to manually spray fluids for masking and coating applications. The SG-150-RS standard-flow spray gun is ideal for dispensing fluids with viscosity lower than 10,000 cP, while the SG-150-RH is better suited for spraying fluids with viscosity of 10,000 cP and higher.

Both SG-150 models utilize a normally closed, stainless steel needle valve to control fluid flow and have a dual-acting air cylinder that provides immediate start/stop functionality. A stroke adjustment on the valve can be used to fine-tune the flow rate and a precision air regulator/gauge assembly simultaneously activates the atomizing air while the valve is opened and fluid is flowing. Both models are delivered with a round spray cap that provides a circular spray pattern, with an optional flat spray cap available if a linear or flat spray pattern is preferred.

The guns’ design incorporates a durable, lightweight, cast metal handle with pneumatic trigger mechanism so no additional electronic controls are required to activate the spray. The operator effortlessly controls the spray by manually pulling or releasing the trigger.

Dymax spray valves provide users with manual control over the valve and its spray and are ideal for the following applications:

  • Masking of turbines or other metal surfaces before surface treatment
  • Masking medical implants before finishing treatments
  • Conformal coating of circuit boards
  • Spraying solvents for cleaning part surfaces
  • Coating large parts with grease or other lubrication before assembly



  • All wetted components are stainless steel, Teflon, or Kalrez
  • Compatible with wide range of fluids
  • Dispense from pressurized cartridges, bottles, and pails (requires appropriate reservoir hardware)
  • Lightweight assembly with low trigger resistance
  • Easy adjustment of material flow and spray atomization
  • Pneumatically operated, no power required
  • Sealed fluid body with no exposure to ambient conditions
  • Easy shutdown and cleanup



System Specifications

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Property Specifications
Activation Manually Controlled – Trigger Actuate
Electrical power requirements None
Air pressure required Valve: 60 psi [4.14 bar] to 100 psi [6.89 bar]
Atomizing Air: 0 psi [0 bar] to 15 psi [1.03 bar] (Standard-flow Spray Gun) 0 psi [0 bar] to 30 psi [2.06 bar] (High-flow Spray Gun)
Spray pattern Round Air Cap (standard): 0.25 in – 1.0 in [6.35 mm – 25.40 mm]
Flat Air Cap (optional): 0.50 in – 2.0 in [12.70 mm – 50.80 mm]
Flow rate Standard flow: 0.3 mL/sec (spraying 25,000 cP thixotropic fluid)
High flow: 2.0 mL/sec (spraying 25,000 cP thixotropic fluid)
Fluid input fitting 3/8 tube push in (accepts 3/8″ OD tubing)
Dimensions (L x W x H) Sprayer: 8 in x 4 in x 8 in (20.5 cm x 10.2 cm x 20.5 cm)
Air Regulator Stand: 8 in x 9 in x 9 in (20.5 cm x 22.8 cm x 22.8 cm)
Weight Sprayer: 1.7 lb (0.8 kg)
Air Regulator Stand: 6.6 lb (3.0 kg)
Warranty 1 year from purchase (excludes soft seals)

Looking for additional technical specifications? Check out our Resource Library or talk with our technical experts.

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Dymax High-Flow Handheld Sprayer with SpeedMask Masking Resin

Dymax offers both standard and high-flow handheld sprayers for applying coatings, lubricants, masking resins, and other low-to-high viscosity fluids. Watch as the standard and high-flow sprayers are used to spray Dymax SpeedMask masking resin. See the difference in flow rate between the two models.

Part Numbers

Build a complete solution or find replacement parts for your project

Limited quantities, please submit RFQ for pricing and availability.


SG-150-RS Standard-flow Spray Gun, Round Spray Cap. For use with viscosities <10,000 cP.

Global (CE Marked)


SG-150-RH High-flow Spray Gun, Round Spray Cap for use with viscosities >10,000 cP.

Global (CE Marked)


Sprayer stand with solvent cup

Global (CE Marked)


Air Filter Regulator with air shut off 

Global (CE Marked)


Fluid Line Kit – 3/8″ OD, Polyethylene

Global (CE Marked)


Fluid Line Kit – 1/4″ OD, Polyethylene

Global (CE Marked)

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