Description
MEGAFOAM EPS-XPS GUN is high quality, one component, ready to use polyurethane-based foam-glue with minimal expansion after application. It’s ideal for professional bonding insulating boards of extruded or expanded polystyrene to concrete, plaster and masonry surfaces. It is waterproof, elastic and can be plastered. It has excellent adhesion to plaster, brick, mortar, asphalt, wood, hardboard, gypsum, cardboard and metal surfaces. Solvent-Free.
ADVANTAGES
- High quality, professional grade
- Qualified for thermal facade systems
- Excellent thermal & acoustic insulation
- Can be applied on wet surfaces minimising drying time
- Excellent adhesion on most substrates
- High yield
- Easy application
- Decreased consumption
- Less loading weight on the structural elements compared to adhesives in the form of mortar
- Saves time & cost compared to other conventional adhesives in mortar form
- Lower transportation costs
- Lower storage costs
- Faster project delivery – in 45’ to 3 hours the boards can be fixed with the mechanical anchoring plugs
- It’s low secondary expansion while it does not contain solvents
- Resistant to moisture and ageing
- High performance up to 14 m2 of boards can be held using one bottle
APPLICATIONS
- Bonding and assembling polystyrene panels (EPS, EPS-P, XPS, etc.), rigid polyurethane foam (PUR / PIR) and mineral fiber panels on concrete, plaster and masonry.
- Filling joints between the insulation boards.
- Not recommended for applications on Teflon, silicone, ΡΕ & ΡΡ
Specifications
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Coverage:
750ml can bond ~14m2 of insulation boards
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Thinning:
no
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Skin formation:
8 minutes 20oC
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Curing Rate:
1 hour for a 30 mm bead 20oC
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Exterior use
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Interior use
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Application temperature:
5oC - 35oC
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Cleaning:
with MERCOLA PU GUN & FOAM CLEANER or acetone
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Instructions for use
Surface preparation
Moistening the surfaces with a water sprayer improves adhesion and curing speed.
Application
- Surfaces must be clean, free of dust and grease
- Wear suitable protective gloves
- Shake the can well for at least 30 seconds
- Fit the gun on the adapter
- Hold the can upside-down and extrude the foam by pressing the valve
- Apply around the edges of the perimeter of the plate specifically, 5cm inside from the edges
- Apply 10-15mm thick strips in a “W” shape. Alternatively, apply parallel strips of the same thickness with a distance of 25-30cm between them.
- Within 2 – 4 minutes fasten the plate to the substrate, before the foam starts to harden
- After 45 minutes to 3 hours, proceed with the mechanical fixation (anchoring) of the boards
- Fill gaps between the thermal insulation boards with MEGAFOAM EPS-XPS to avoid creating a thermal bridge that will reduce the overall thermal insulation of the building
A suitability test is recommended
Caution
The boards must be mechanically supported at the bottom of the wall to prevent sliding before the foam is fully cured. Gluing with foam is not a substitute for mechanical fastening with the appropriate mechanical anchoring plugs.
REMARKS
- Avoid contact with uncured foam after application especially at low temperatures.
- Cured PU foam must be protected from UV radiation and high temperatures.
- Before use, all MEGAFOAM EPS-XPS should be stored at room temperature for at least 12 hours.
Cleaning
Fresh foam can be removed with GUN & FOAM CLEANER or acetone. Proper cleaning of the gun after each application guarantees long life of the gun. Cured foam can only be removed mechanically.
