Genuine spares and wear parts.

For Reka hot melt glue guns. The spares on this site are genuine Reka parts.

When a nozzle or an O-ring goes, the quickest fix is often whatever part is nearest. It rarely stays cheap. A part that is a fraction off in size, or not made for the heat and pressure inside a hot melt gun, leaks, drips or fails early, and the downtime costs far more than the part.

What wears in a hot melt gun

Part	Why it wears	Sign it needs replacing
Nozzle	Wear and damage, foreign objects in the glue	Dripping, less glue than usual, a bead going off at an angle or in spirals
O-rings, gaskets, seals	Normal wear: they are wear parts	Glue or air escaping at the lid or joints
Vent valve parts (air-driven guns)	Glue getting into the valve	No venting sound after a trigger pull, dripping when released
Lid	Glue in the venting hole	Low flow or a leaking nozzle (MS guns)
Piston O-rings (MS guns)	Normal wear	Hot melt leaking out of the casing: stop using the gun and send it in
Single-use cartridge piston (cartridge guns)	Used once by design	Every new single-use cartridge

The fault pages cover each sign in detail: dripping · spiral or angled bead · low glue flow · vent valve cleaning.

Why genuine parts

• They fit exactly. A genuine nozzle seats and seals in the melting block as designed. A worn or defective nozzle is one of the two usual causes of a gun that drips.
• They are made for the temperature. Seals and O-rings inside a hot melt gun work at up to about 200 °C or more, under air pressure on air-driven guns. A general-purpose O-ring of the same size may not survive it.
• They keep the warranty. The 6-month warranty does not cover non-approved spares or consumables, or repairs and changes we have not authorised. See warranty.
• They are the parts the operating instructions are written for. Nozzle changes, vent cleaning and lid replacement all assume the original parts.

What you can change yourself, and what you can’t

You can change the parts the manual lets you change: the nozzle, the lid, and the vent-valve parts (silencer and seals), with the gun unplugged, warm and empty. Everything else is a repair. Reka’s manual says self-made repairs void the warranty and asks for the gun to be sent to the supplier with its type and serial number. That is us: we repair in Mumbai or send the gun to Reka, depending on the fault.

Spares worth keeping at the factory

1. One spare nozzle of each type you use. A blocked or worn nozzle is behind many common faults: dripping, low flow, an angled bead.
2. A complete spare lid (air-driven guns). When a vent blocks, swap the lid and clean the old one later, so the line keeps running.
3. The wear-part set for your model, with the O-rings and seals that wear.
4. For cartridge guns: spare single-use cartridges or the refillable cartridge and its lid set, if you fill your own glue.

Prices and availability: spares and accessories and the nozzle finder. Not sure which part you need? Send us the gun model, the serial number (on the nameplate) and a photo.

Where wear comes from

Much of it starts with habits you can change: laying the gun down with liquid glue (glue into the vent), dirty glue (blocked nozzles), running too hot or too long (charred glue), and forcing the trigger on half-melted glue. See glue gun care and maintenance.