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 minimizing drying time
- Excellent adhesion on most substrates
- High yield
- Easy application
- Decreased consumption
- Less loading weight on the structure compared to mortar adhesives
- Saves time & cost compared to conventional adhesives
- Lower transportation and storage costs
- Faster project delivery – boards can be fixed with mechanical anchors in 45’–3 hours
- Low secondary expansion
- Resistant to moisture and ageing
- One can covers up to 14 m2 of insulation boards
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 insulation boards
- Not recommended for applications on Teflon, silicone, ΡΕ & ΡΡ
Specifications
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Coverage:
750ml can bond ~14m2 of isolation boards
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Thinning:
no
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Skin formation:
8 minutes 20oC
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Curing Rate:
1,5 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 to +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 insulation board, approximately 5cm inside from the perimeter.
- Apply 10–15mm thick strips in a “W” shape or parallel strips spaced 25–30cm apart.
- Within 2–4 minutes, press the board against the substrate before the foam starts to harden.
- After 45 minutes to 3 hours, proceed with mechanical fixation (anchoring) of the boards.
- Fill gaps between insulation boards with MEGAFOAM EPS-XPS to prevent thermal bridging.
Caution: Boards must be mechanically supported at the bottom until the foam cures. Foam gluing does not replace proper mechanical fixing. Product suitability testing is recommended.
REMARKS
- Avoid contact with uncured foam after application, especially at low temperatures.
- Cured PU foam must be protected from UV radiation and high temperatures by applying PU or acrylic paint or sealant (silicone, acrylic, MS Polymer).
- Before use, the can 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.
