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Where to Use Murotherm KAM Murotherm KAM is a specialist adhesive reinforcing mortar designed for bonding insulation boards, reinforcing facades with embedded mesh, and creating durable base coat systems. Its high bond strength and structural integrity make it the foundation of professional EWI (External Wall Insulation) and facade reinforcement projects. EWI System Installation Primary adhesive for bonding rigid insulation boards (EPS, XPS, mineral wool) to external masonry, concrete, or rendered surfaces. Creates strong mechanical and chemical bond for long-term system stability. Reinforced Base Coat Application Embedded mesh reinforcement mortar for facade stabilisation and crack bridging. Provides structural strength and distributes stress across facade surfaces before final finish coats. Thermal Upgrade Projects Complete thermal insulation systems on residential, commercial, and industrial buildings. Superior adhesion ensures insulation boards remain securely bonded throughout building lifespan and seasonal temperature variations. Facade Repair & Restoration Reinforcement of damaged or aging facades with new insulation and mesh reinforcement. Re-establishes structural integrity and weather protection on existing building envelopes. New Build Construction Standard specification for energy-efficient new buildings requiring external insulation during construction. Integrates seamlessly with modern building codes and thermal performance requirements. Commercial & Multi-Unit Applications Specifier choice for large-scale apartment blocks, office buildings, and commercial facades requiring reliable, consistent performance across extensive building surfaces. Substrate Preparation & Board Assessment Proper substrate assessment and insulation board preparation are critical for successful KAM application. Bond strength depends on clean substrates, compatible board types, and correct mortar application technique. Substrate Condition Assessment Surface Stability: Substrate must be structurally sound with no loose plaster, paint, or cladding. Remove unstable materials completely Moisture Levels: Substrate must be dry before board bonding. Damp walls reduce adhesion—allow adequate drying or apply damp-proof course first Surface Cleanliness: Remove dust, algae, mould, dirt, and loose particles that prevent direct mortar contact and adhesion Bond Strength Requirements: Hard, smooth surfaces (concrete, tiles) may require priming with Deep Primer or Concrete Contact to enhance adhesion Thermal Performance: Verify board thermal rating meets building code requirements before installation begins Pre-Installation Surface Preparation Remove Loose Materials: Strip old paint, render, cladding, and any material not firmly bonded to substrate. Substrate must be load-bearing ready Clean Thoroughly: Pressure wash if heavily contaminated. Remove biological growth (algae, mould, lichen) that weakens adhesion Repair Substrate Defects: Fill large cracks, spalling, or cavities in substrate before board installation Prime Hard Surfaces: Smooth concrete or tiled surfaces benefit from primer application to improve mortar bond and control suction Allow Drying Time: After pressure washing or priming, allow adequate drying (typically 48-72 hours) before applying KAM Verify Board Compatibility: Ensure insulation boards are appropriate for climate, building use, and fire regulations in installation location Installation & Application Guide Murotherm KAM is supplied as a 25kg dry powder requiring site mixing with water. Consistency, board positioning, and reinforcement placement are critical to achieving strong, lasting adhesion and structural integrity. 1 Mortar Mixing & Preparation Add water to powder in ratio approximately 1 part water to 3-4 parts powder (follow product instructions for exact ratio). Mix thoroughly with power mixer until smooth, homogeneous consistency—no lumps. Allow mortar to slake 5-10 minutes, then remix. Use within pot life (typically 2-4 hours depending on temperature). 2 Application Method & Board Bonding Apply KAM to substrate with toothed spreader (8-10mm notch) in even, parallel ridges. Typical coverage 4-6 kg/m² depending on substrate profile. Press insulation board firmly onto mortar, ensuring full contact. Stagger board joints in running bond pattern. Check plumb and level regularly during installation. 3 Mesh Reinforcement Installation Once boards are set (minimum 48 hours), apply 3-5mm base coat of fresh KAM. Embed alkali-resistant fibreglass mesh (160 g/m² minimum) into mortar with 10cm overlap at seams. Trowel smooth finish coat over mesh. Mesh reinforcement provides crack bridging and structural strength. 4 Curing & Setting Time Allow boards to cure minimum 7 days before applying base coats in favorable conditions (5-25°C, moderate humidity). In cold or wet weather, extend curing to 10-14 days. Protect from rain and frost during curing period. Do not load facade before mortar has fully set. 5 Finish Coat Application Once base coat is fully cured and hardened, apply finish plaster, render, or coating per manufacturer instructions. KAM provides solid mechanical bond and level surface for professional final finishes. System is fully weatherproof after finish coat cure. Why Specify Murotherm KAM 🔗 Superior Bond Strength Formulated for maximum adhesion to diverse substrates—masonry, concrete, rendered surfaces, and existing facades. Chemical and mechanical bonding ensures boards remain securely fixed throughout building lifespan, even under dynamic loading and weather exposure. 🛡️ Weather & Durability Resistant to freeze-thaw cycles, UV degradation, and water penetration. Maintains structural integrity and adhesion across decades of seasonal temperature variation, precipitation, and exposure—critical for facade longevity. 🧵 Reinforcement Ready Optimized consistency for embedding alkali-resistant mesh reinforcement. Distributes stress across facade, bridges cracks, and enhances structural performance—essential for EWI and major facade renovation systems. 🏗️ German Engineering Quality Manufactured by Murotherm to rigorous DIN and European standards. Consistent formulation ensures predictable performance, reliable adhesion, and compliance with building regulations across all projects and conditions. ⚡ Professional Workability Optimal pot life and application window for professional installation teams. Excellent troweling properties, minimal slump, and precise coverage control make installation efficient and cost-effective on large-scale projects. 💰 Cost-Effective EWI Solution Single-product system reduces material logistics and simplifies specification. Reliable performance minimizes call-backs and remedial work. 25kg bags provide excellent coverage and reduce waste compared to alternative systems. ⚠️ Safety Information Contains cement—may cause skin irritation and eye damage on contact Wear protective gloves, eye protection, and respiratory protection during mixing and application Use in well-ventilated areas—avoid inhaling cement dust during mixing In case of skin contact, wash thoroughly with clean water immediately In case of eye contact, rinse immediately with copious amounts of clean water for 15 minutes and seek medical attention In case of inhalation, move to fresh air immediately Keep out of reach of children and animals Consult full Safety Data Sheet (SDS) before use—important health and environmental information 📦 Storage & Shelf Life Storage Conditions: Store in dry location at temperatures between +5°C and +25°C in original, sealed bags Protection: Keep away from moisture, rain, frost, and direct sunlight during storage Shelf Life: 6-12 months in sealed original packaging under proper dry storage conditions Humidity Exposure: Powdered mortar absorbs moisture—keep bags sealed. Opened bags should be used promptly and remainder discarded Stacking: Do not stack bags excessively—moisture can develop in lower bags due to compression Container Integrity: Discard bags with tears, holes, or visible moisture damage. Caked or lumpy mortar cannot be salvaged Ready to Specify Murotherm KAM? Murotherm KAM is the proven foundation of modern EWI systems and facade reinforcement projects across the UK. Its superior adhesion, durability, and reinforcement capability make it the trusted choice for professionals delivering lasting thermal upgrades and facade restoration. From residential thermal upgrades and new build construction to commercial facade projects and heritage building restoration, Murotherm KAM delivers the reliable bonding and structural strength that lasts decades—reducing callbacks and ensuring professional results. View Product & Order Technical Support Questions? Our technical team is ready to help with EWI system design, coverage calculations, board compatibility, and project specifications.

When to Use muro Deep Primer muro Deep Primer is the professional choice for preparing a wide range of substrates before applying finish coatings, renders, or plasters. Its versatile formulation makes it suitable for diverse project types and challenging surface conditions. New Construction & Renovation Essential on fresh masonry, concrete, and blockwork before render or finish application. Seals substrate variability and ensures consistent adhesion across all surfaces. Porous & Absorbent Surfaces Lightweight blocks, aerated concrete, old brick, and chalk-painted surfaces benefit from deep penetration and water absorption control. Interior Wall Preparation Improves adhesion of plasters, skims, and finish coatings. Controls suction and prevents patchy drying that leads to color variation. Exterior Facade Work Prepares outdoor masonry for render systems, protective coatings, and insulation layer adhesion in thermal upgrade projects. Heritage & Listed Properties Breathable primer formulation compatible with historic masonry, preserving vapour transmission while improving material bonding. EWI & Thermal Systems Ideal substrate preparation for external wall insulation systems, mechanical fixing, and adhesive bonding of insulation boards. Surface Assessment & Preparation Proper surface assessment determines whether priming is necessary and what type of primer will deliver best results. Take time to evaluate your substrate. Signs Your Surface Needs Priming High Suction: Surface absorbs water droplets rapidly (within seconds)—indicates porous material requiring prime coat Chalky or Powdery Appearance: Surface rubs off when scratched—requires stabilising primer before finish application Uneven Surface Texture: Mix of dense and porous areas will dry at different rates without primer New Masonry or Concrete: All fresh substrates benefit from uniform surface preparation and sealing Previous Paint or Coating Failure: Re-prime before reapplication to prevent recurrence of adhesion issues Pre-Application Cleaning Remove Loose Material: Brush off dust, loose mortar, flaking paint, and debris with stiff brush or wire brush Clean Greasy Surfaces: Degrease surfaces with appropriate cleaner; oil and grease prevent adhesion Wash if Heavily Soiled: Pressure wash if necessary, but allow 48-72 hours drying time before priming Assess Moisture: Surfaces must be dry before application. Use moisture meter if unsure (target <18% moisture content) Fill Major Gaps: Seal cracks larger than 3mm with appropriate filler before priming Application & Coverage Guide muro Deep Primer is ready-to-use and simple to apply. One generous coat typically provides complete surface coverage and absorption control. 1 Inspection & Cleaning Inspect surface carefully. Remove all loose material, dust, and contaminants. For heavily soiled surfaces, pressure wash and allow adequate drying time (typically 48-72 hours). 2 Preparation Stir product thoroughly. No thinning required—apply at full strength for maximum penetration and sealing. Do not thin with water or solvent. 3 Application Method Apply with brush, roller, or spray equipment. Work from top to bottom in overlapping sections. Ensure thorough and even coverage—apply generously to achieve complete surface saturation without puddling. 4 Drying Time Allow 4-6 hours drying before applying subsequent coats or finish materials. In cool, damp conditions, extend drying time to 8-12 hours. Avoid application during rain or heavy humidity. 5 Applying Finish Coat Once primer is dry and surface is uniform in appearance, apply finish plaster, render, or coating per manufacturer instructions. Primed surface ensures consistent absorption and professional final results. Why Specify muro Deep Primer 🎯 Deep Penetration Penetrating formulation reaches deep into porous substrates, controlling suction uniformly and preventing hollow-sounding finishes or adhesion failure. 🔒 Suction Control Regulates water absorption of substrate, ensuring render, plaster, or coating dries evenly without patchy appearance, colour variation, or premature adhesion failure. 💪 Enhanced Adhesion Improves mechanical and chemical bonding between substrate and finish materials, reducing failure risk and extending service life significantly. 🏗️ German Engineering Manufactured by muro Bauprodukte GmbH to rigorous European standards with laboratory-tested performance and reliability specifiers trust. ⚡ Time Efficient One coat application in most cases. Ready-to-use formulation speeds up project timelines and reduces labour costs. Fast drying allows rapid progression to finish coats. 💨 Breathable Formula Allows water vapour transmission, making it suitable for heritage buildings and breathable finish systems. Compatible with traditional and modern substrates. ⚠️ Safety Information Product may contain irritants—avoid contact with eyes and skin Wear protective gloves and eye protection during application Ensure adequate ventilation—open windows and doors In case of skin contact, wash thoroughly with soap and water In case of eye contact, rinse immediately with clean water for 15 minutes and seek medical attention Keep out of reach of children and animals Consult full Safety Data Sheet (SDS) before use 📦 Storage & Shelf Life Storage Temperature: Store between +5°C and +25°C in original, sealed containers Protection: Keep away from frost, direct sunlight, and extreme heat Shelf Life: 12 months in sealed original packaging under proper storage conditions Once Opened: Use within reasonable timeframe; reseal tightly between applications Freezing: Product may be damaged by freezing—protect during winter transport Disposal: Follow local waste disposal regulations for paint/coating products Ready to Specify muro Deep Primer? Professional substrate preparation is the foundation of any successful plaster, render, or coating project. muro Deep Primer ensures uniform surface conditions, superior adhesion, and professional-quality finishes that last. From new construction and renovation to heritage properties and EWI systems, muro Deep Primer is specified by professionals across the UK for reliable, cost-effective substrate sealing and suction control. View Product & Order Technical Support Questions? Our technical team is ready to help with specification advice, coverage calculations, and project support.

Muro Concrete Contact is a solvent-free, ready-to-use bonding primer engineered in Germany to ensure reliable adhesion of plaster coatings to smooth, non-absorbent concrete surfaces. Learn why this premium product outperforms standard UK alternatives.