Everbuild Galva Mate Galvanised and Metal Duct Sealant GALVAM Box 25

Everbuild Everflex Galva Mate Galvanised and Metal Duct Ducting Sealant 295ml Large Box of 25

Trade Box 25 - Trade - Best Price Money Saver Deal

Barcode: 5029347000707

MPN: GALVAM

Sika Code: 489540

Size: 295ml Fill 310ml Standard Cartridge

Colour: Grey

Overview:

This trade pack of Everbuild Galva Mate contains 25 grey 295ml cartridges of specialist metal duct sealant, ideal for HVAC contractors and maintenance teams. Formulated as a solvent-free, water-based acrylic paste, it bonds strongly to galvanised and stainless steel ductwork, seams and fittings, creating an airtight, long-lasting seal.

The low-slump, permanently flexible formula stays in place on vertical and overhead joints, accommodates vibration and thermal movement, and includes fungicide to help resist mould growth in humid plant rooms and duct runs. Once cured, Galva Mate can be overpainted for a neat, professional finish throughout commercial and industrial ducting systems.

Key Features

• Specialist duct sealant for high-velocity heating and ventilation systems

• Excellent adhesion to galvanised and stainless steel ductwork and grilles

• Solvent-free acrylic paste – low odour, easy to gun and tool

• Low slump for clean beads on vertical and overhead seams

• Permanently flexible to cope with vibration and thermal movement

• Contains fungicide to help resist mould growth in humid environments

• Over-paintable once fully cured for discreet, colour-matched joints

• Trade box of 25 cartridges – ideal for larger projects and regular site use

Specifications

• Brand: Everbuild (Sika)

• Product Name: Galva Mate Galvanised & Metal Duct Sealant

• Sika Code: 489540

• MPN: GALVAM

• Barcode (Single Cartridge): 5029347000707

• Pack Size: Box of 25 x 295ml cartridges

• Colour: Grey

• Base: Water-based acrylic sealant

• Consistency: Low-slump paste

• Movement Capability: Low to medium (approx. ±5% – for duct joints, not structural gaps)

• Application Temperature: Approx. +4°C to +40°C

• Service Temperature: Approx. –15°C to +75°C (typical HVAC ranges)

• Cure Time: Skins in minutes; allow several days for full cure depending on bead size and conditions

• Over-paintable: Yes – once fully cured (test compatibility first)

• Use Location: Internal duct systems and plant rooms (not for immersed or constantly wet joints)

Applications

• Sealing longitudinal seams and transverse joints on galvanised steel ductwork

• Airtight sealing around duct fittings, bends, tees and spigots

• Joints around ventilation grilles, plenums and fan coil connections

• Plant room duct sealing in high-humidity environments

• General specialist HVAC duct sealing where a grey, flexible, over-paintable sealant is required

How to Use

• Ensure all duct surfaces and joints are clean, sound and free from dust, loose rust, oil, grease and old flaking sealant.

• Cut the cartridge tip, screw on the nozzle and trim it at an angle to the required bead size.

• Load the cartridge into a standard sealant gun and apply a continuous bead along the joint or seam, ensuring good contact with both sides.

• Tool the sealant immediately with a suitable spatula or gloved finger, pressing it firmly into the joint and smoothing to the desired profile.

• Allow the bead to skin over and then cure fully before subjecting the ductwork to full airflow, pressure and cleaning regimes.

• Once fully cured, the seal can be overpainted if required. Always follow the latest product data and safety information supplied by the manufacturer.

Everbuild Galva Mate Duct Sealant Box of 25 – Key FAQs

• What is this box of 25 Galva Mate best suited for?
  For HVAC installers, fabricators and maintenance teams who regularly seal galvanised or stainless steel duct runs and want a cost-effective trade quantity on site or in the van.

• Can I use it on both galvanised and stainless steel ducting?
  Yes, it is designed to bond strongly to galvanised and stainless steel, making it suitable for most modern rectangular and spiral duct systems.

• Is this sealant flexible once cured?
  It cures to a flexible, low-modulus seal that can accommodate normal vibration and limited movement in duct joints without cracking.

• Can Galva Mate be painted over?
  Yes, once fully cured it can be overpainted with many conventional coatings. Always test on a small area first to check compatibility and adhesion.

• Is it suitable for use in damp or humid plant rooms?
  It contains fungicide to help resist mould growth in humid areas, making it well suited to internal ductwork and plant room environments where condensation may occur.

• Do I need a special gun for these cartridges?
  No, each 295ml cartridge fits a standard C3 sealant or mastic gun commonly used on site.

Everbuild Galva-Mate Information:

"Always read the Technical Datasheet prior to first use to ensure you have the correct information and  product for your application"

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