Semco 250A Pneumatic Sealant Gun, 6 oz

The PPG Semco Model 250-A Pneumatic Sealant Gun, 6 oz, is designed for controlled pneumatic dispensing of sealants, adhesives, potting compounds, and other materials packaged in compatible Semco disposable cartridges or Semkit packages. Its trigger-controlled operation allows the user to regulate material flow for precise application in aerospace, aircraft maintenance, manufacturing, and other professional environments.

Important: The Semco Model 250-A does not come with an air hose. This configuration includes one 6 oz retainer. The pneumatic air hose assembly must be purchased separately and selected to match the quick-disconnect fitting on your compressed-air supply.

Semco Model 250-A 6 oz Pneumatic Sealant Gun Features

• Manufacturer: PPG Semco
• Model: 250-A
• Capacity: 6 oz (156 cc)
• Includes one 6 oz retainer
• Pneumatic operation for controlled dispensing of compatible materials
• Trigger-controlled material flow
• Designed for Semco disposable cartridges and compatible Semkit packages
• Retainer attaches to the valve assembly with a bayonet-lock connection
• Removable handle to improve access in confined work areas

Air Hose Required — Sold Separately

The Semco 250-A pneumatic sealant gun does not include an air hose. To operate the gun, order a compatible Semco hose assembly separately. Each hose assembly has a B-nut fitting for connection to the gun and a quick-disconnect fitting for the compressed-air supply.

Choose the hose based on the quick-disconnect style used by your shop air line. Available Semco hose configurations include:

• ARO connector: For compatible ARO-style shop air fittings.
• Hansen connector: For compatible Hansen-style shop air fittings.
• Schrader connector: For compatible Schrader-style shop air fittings.

Hose assemblies are available in multiple lengths. Verify the connector style and length required for your setup before ordering; ARO, Hansen, and Schrader fittings are not generally interchangeable.

Shop compatible hoses: Semco ARO Hose Assembly for Model 250-A. For additional Semco equipment and accessories, visit our Semco product range.

Semco 250-A 6 oz Gun Applications

The Semco Model 250-A is designed to dispense compatible materials from Semco disposable cartridges and Semkit packages. Typical applications include controlled application of:

• Aircraft sealants
• Aerospace adhesives
• Potting compounds
• Other compatible materials packaged for Semco dispensing equipment

The pneumatic dispensing mechanism allows the operator to control material delivery at the application point. Actual flow depends on the material's viscosity, the selected nozzle or adapter, air pressure, and application technique.

Always verify that the material packaging, cartridge, plunger, retainer, and dispensing accessories are compatible with the intended application. Follow the material manufacturer's instructions and applicable aircraft maintenance procedures.

Semco Model 250-A 6 oz Specifications

Frequently Asked Questions

Does the Semco Model 250-A 6 oz sealant gun include a hose?

No. The Semco Model 250-A does not come with an air hose. The hose assembly must be ordered separately. Choose a compatible hose with the correct quick-disconnect fitting for your compressed-air supply.

What is included with the Semco 250-A 6 oz gun?

This configuration includes the pneumatic gun and one 6 oz retainer. The air hose is sold separately. Check the product listing for the exact configuration being ordered.

Which hose fits the Semco Model 250-A?

Compatible Semco hose assemblies use a B-nut fitting at the gun end and are available with different air-supply quick-disconnect fittings, including ARO, Hansen, and Schrader. Select the version that matches your shop air connection. See our Semco ARO hose assembly.

What is the difference between the ARO and Hansen Semco hoses?

The main difference is the quick-disconnect fitting that connects to the shop air supply. The hose must match the fitting profile on your compressed-air line. ARO and Hansen fittings are different styles and should not be assumed to be interchangeable.

What materials can the Semco 250-A dispense?

The Model 250-A is designed for compatible sealants, adhesives, potting compounds, and other materials packaged in Semco disposable cartridges or Semkit packages. Verify material and accessory compatibility before use.

Can the Semco 250-A handle be removed?

Yes. The handle can be removed to improve access and maneuverability when working in confined spaces.