Product Overview

The Akfix AKT 350 Silicone Gun HD is a heavy-duty, professional-grade manual caulking gun engineered for fast and precise application of silicone, acrylic, polyurethane and hybrid sealants. Built around a rigid rotating skeleton frame with a hardened steel push rod, the AKT 350 delivers the high, even thrust needed for both everyday silicone work and thicker construction adhesives — making it the go-to sealant gun in Kenya for fundis, glaziers, plumbers, aluminium fabricators and construction contractors.

Unlike lightweight budget guns that flex, jam or continue oozing sealant after you release the trigger, the AKT 350's instant pressure-release (drip-free) mechanism stops the flow the moment you let go — giving you clean joints, less wastage and a neater finish on every bead. The two-component soft-grip handle reduces hand fatigue during long application sessions, while the 360° rotating frame lets you follow corners and curved joints without twisting your wrist.

Key Features & Benefits

Technical Specifications

How to Use the Akfix AKT 350 Silicone Gun

1. Release the push rod. Press the release lever at the back of the gun and pull the steel rod fully backwards using the rear thumb plate.
2. Load the cartridge. Drop the 310ml sealant cartridge into the skeleton frame, nozzle end first through the front ring, and seat the base against the pressure plate.
3. Cut the nozzle. Cut the cartridge nozzle at a 45° angle to a width slightly smaller than the joint you are sealing. Pierce the inner foil seal if required.
4. Prime the gun. Squeeze the trigger a few times until the rod contacts the cartridge base and sealant just reaches the nozzle tip.
5. Apply the bead. Hold the gun at roughly 45° to the joint and squeeze the trigger with slow, steady pressure while moving at a constant speed along the joint. Rotate the frame as needed for corners.
6. Stop cleanly. Release the trigger — the drip-free mechanism instantly cuts pressure. For long pauses, press the rear release lever to fully relieve rod pressure.
7. Tool the joint. Smooth the bead within the sealant's skinning time (usually 5–10 minutes) using a finishing tool or soapy finger for a professional finish.
8. Unload & store. Pull the rod back, remove the cartridge, cap the nozzle for reuse, and hang the gun by its hook away from dust and moisture.

Maintenance Tips

Wipe any cured sealant off the frame and rod with a blade or Akfix silicone remover — never let PU adhesive cure on the ratchet mechanism. Occasionally apply a drop of light oil to the rod and trigger pivot to keep the action smooth. Stored properly, the AKT 350 will serve for years of daily site work.

Common Applications in Kenya

The AKT 350 is used every day across Nairobi, Ongata Rongai, Kiserian, Kitengela and greater Kajiado for: window and door frame sealing (aluminium and steel casements), kitchen and bathroom silicone around sinks, tubs and countertops, glass-to-glass and glass-to-aluminium glazing, expansion joint sealing in floors and walls, roofing and gutter sealing, skirting and panel bonding with grab adhesives, and plumbing pipe penetrations. One gun, every cartridge — it is the single most useful applicator tool in any fundi's toolbox.

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