Precision-fit for 32.0 oz. Semco® disposable cartridges — maximum-volume capacity for high-output professional dispensing operations

Black anodized aluminum construction — superior corrosion resistance, durability, and extended service life in demanding production environments

Retainer affixed to the adapter via precision machined aluminum bezel — unscrew to load cartridge, thread tight for secure, reliable attachment

The aerospace and electronics industry standard retainer configuration — trusted by professionals across high-volume production environments worldwide

Easily removed for applications in confined locations — allows more clearance and better manipulation without compromising dispensing quality

Included — black anodized aluminum retainer with machined aluminum bezel; unscrew bezel to load and replace cartridges

Touch control on trigger regulates material flow — positive control for smooth, even dispensing; material flows until trigger is released

Durable metal and engineered plastic parts — shock resistant, designed to withstand the rigors of the production workplace

Quiet operation — 0–100 PSI operating range; air pressure pushes against cartridge plunger for positive, even material dispensing

Ships complete with a 32.0 oz. black anodized aluminum retainer affixed to the adapter via a precision machined aluminum bezel. Unscrew the bezel to load the cartridge, thread tight for secure attachment. Black anodized finish delivers superior corrosion resistance and durability for extended service life in demanding production environments.

Touch control on the trigger regulates material flow — when the trigger is depressed, air pressure pushes against the plunger for positive, even dispensing. Material flows until the trigger is released, permitting a drop, shot, or bead to be accurately applied. Flow is determined by material viscosity, air line pressure, nozzle orifice size, and trigger duration.

Engineered for quiet pneumatic operation across a 0–6.9 bar (0–100 PSI) operating range — delivering consistent, controlled application of sealants, adhesives, potting compounds, and specialized materials from Semco® disposable cartridges and Semkit® packages for multi-component materials.

The ergonomic black handle can be easily removed for applications in confined locations — allowing more clearance and better manipulation in challenging workspace configurations without sacrificing dispensing precision or application quality.

Constructed of durable metal and engineered plastic parts — shock resistant and specifically designed to withstand the rigors of the production workplace. Lightweight design reduces operator fatigue during extended professional use while maintaining the structural integrity required for high-cycle dispensing operations.

The Model 250-A's precise material control reduces applied material cost — accurate dispensing minimizes waste, ensuring the exact amount of material is dispensed at the precise location required. When paired with PPG Industries' Semco® precision molded cartridges, plungers, nozzles, sem-luer adapters, and sem-needles, dispensing accuracy is maximized.

Attach hose assembly to a regulated compressed air source — replace quick-release connector if needed for local air supply hardware

Unscrew the machined aluminum bezel and retainer from the adapter assembly to prepare for cartridge loading

Place the 32.0 oz. Semco® cartridge into the retainer — place loaded retainer onto adapter assembly and thread bezel tight

Air pressure pushes against the plunger — positive, even dispensing of material until trigger is released

Unscrew bezel, remove disposable cartridge and nozzle — dispose per local regulations and material safety data sheet

Accurate material control minimizes waste and reduces overall applied material cost

Precise dispensing — exact amount of material at the precise location required

Lightweight construction reduces operator fatigue during extended professional use

Handle removes easily for application in confined areas — more clearance, better manipulation

0–6.9 bar (0–100 PSI) — broad operating range for diverse production air supply configurations

Built to withstand the rigors of the production workplace — long-term reliability and consistent performance

Trigger touch control regulates flow — positive control for smooth, even dispensing every time

Positive control for smooth, even dispensing — drop, shot, or bead accurately applied at precise location

Ergonomic design for operator comfort — quiet pneumatic operation for professional production environments

The industry-standard sealant gun for aircraft structural sealing, fuel tank sealant application, and potting compound dispensing in MRO and manufacturing environments

Industry-standard dispensing for electronics manufacturing — potting compounds, adhesives, and specialized materials requiring precise, controlled application

High-volume production sealant and adhesive dispensing for manufacturing, assembly, and maintenance operations requiring maximum-volume, controlled material application

Black anodized aluminum with machined bezel — maximum capacity, superior durability

Positive, smooth, even dispensing — drop, shot, or bead accurately applied every time

0–6.9 bar operating range — quiet, consistent pneumatic performance across all applications

The trusted standard of aerospace and electronics industries worldwide