
Mapei
MAPETHERM AR1 GG
Single component, large-grained cementitious mortar for bonding and levelling insulation panels and for external thermal insulation systems. Mapetherm AR1 GG is used both internally and externally for levelling off and bonding general insulating panels (expanded/extruded polystyrene, expanded polyurethane, mineral fibre, cork, wood fibre, etc.) directly on render, masonry or concrete on walls and ceilings. Mapetherm AR1 GG is a grey or white powder made from cement, selected sand, synthetic resin and special additives with a grain size of up to 0.6 mm. When mixed with water, it forms a thixotropic mortar with good workability which may be applied on vertical surfaces without running and without letting even large-sized insulating panels slip. To bond insulating panels, spread Mapetherm AR1 GG on the back of the panels in an even layer using a 10 mm notched trowel if the substrate is flat, or in a series of beads and spots with a trowel if the substrate is uneven. To smooth and level off the panels, the adhesive must be completely dry. Spread an even layer of Mapetherm AR1 GG on the surface and then embed Mapetherm Net glass fibre mesh in the mortar, which must be pressed into the product with a smooth trowel while it is still fresh. Consumption - 4.0-6.0 kg/m2 according to the bonding technique used; - 1.3-1.5 kg/m2 per mm of thickness for smoothing and levelling (recommended: approx. 4 mm in 2 layers). Packaging 25 kg bags.
SKU: MAPEI-MAPETHERM-AR1-GG-759
About this itemMAPEI CERTIFIED
- Consistency: Powder EXCELLENT BOND STRENGTH
- Color: Available in grey or white HIGH THIXOTROPY
- Maximum Aggregate Size: Approximately 0.70 mm CE MARKED
- Compressive Strength (28 days): ≥ 9.00 MPa (Grey), ≥ 8.00 MPa (White) MAPEI CERTIFIED
Instant Technical & Sales Hotline24/7 AVAILABLE
Contact for PriceEXCL. VAT
Qty:
1
Available for Order
Secure Payments7-Day Returns
Product WarrantyVAT-invoice
Uses & Advantages
Primary Uses
- Bonding and reinforced levelling of insulation boards in external thermal insulation systems (ETICS)
- Levelling and reinforced coats for interior and exterior masonry applications
Key Advantages
- High thixotropy for vertical applications without slippage
- Excellent adhesion to various substrates, including insulation boards, masonry, concrete, and old paints
- Complies with European Technical Assessment (ETA) standards for ETICS
- Hardens without significant shrinkage
FEATURES & BENEFITS
Consistency
Powder
Color
Available in grey or white
Maximum Aggregate Size
Approximately 0.70 mm
Compressive Strength (28 days)
≥ 9.00 MPa (Grey), ≥ 8.00 MPa (White)
Water Absorption (Capillary Action)
≤ 0.10 kg/(m²·min⁰·⁵), Category W2
Thermal Conductivity
0.32 W/mK (Grey), 0.34 W/mK (White)
Reaction to Fire
Euroclass A1
Application Temperature
+5°C to +35°C
Mapetherm AR1 GG is a high-performance, cementitious mortar designed for bonding and levelling insulation boards in external thermal insulation systems (ETICS) and for smoothing masonry surfaces. This medium-grain mortar is formulated with cement, fine-grained aggregates, synthetic resins, polypropylene fibers, and special additives, ensuring excellent workability, strong adhesion, and minimal shrinkage. It is suitable for both interior and exterior applications, offering reliable performance on a wide range of substrates.
Key Specifications
Mixing Ratio2124% water (56 liters per 25 kg of powder
Pot LifeApproximately 3 hours
Open TimeApproximately 20 minutes
Recommended Thickness for Reinforced Layer4 mm (2 coats
Consumption (Beadand-Spot Application3.0–4.0 kg/m²
Consumption (FullSurface Bonding4.0–6.0 kg/m²
Packaging / Pack Size25 kg paper bags
Certified standard values under UAE climate conditions.
DOWNLOADS & DATA SHEETS
Key Performance Benefits
Consistency
Powder
Color
Available in grey or white
Maximum Aggregate Size
Approximately 0.70 mm
Compressive Strength (28 days)
≥ 9.00 MPa (Grey), ≥ 8.00 MPa (White)
Water Absorption (Capillary Action)
≤ 0.10 kg/(m²·min⁰·⁵), Category W2
Thermal Conductivity
0.32 W/mK (Grey), 0.34 W/mK (White)
Storage & Handling Guidelines
- Store in original unopened container in cool, dry indoor conditions.
- Keep away from direct sunlight, rain, and extreme heat.
- Shelf life is 12 months when stored properly between +5°C and +35°C.

Why Buy From pilehead.com?
Genuine Mapei Product
Competitive UAE Pricing
Bulk Order Support
Fast Jobsite Delivery
FREQUENTLY ASKED QUESTIONS
Coverage depends on the application method and substrate roughness. For bead-and-spot bonding, consumption is approximately 3.0–4.0 kg/m². For full-surface bonding, it is 4.0–6.0 kg/m². For reinforced levelling coats, consumption is 1.35–1.55 kg/m² per mm of thickness.
RATINGS & REVIEWS
Be the first to review this product
Share your project experience, workability, and technical results with other engineers and contractors in the UAE.









