Rock Wool Lamella
Rock wool lamella uses perpendicular fiber orientation to wrap curved surfaces, tanks, and large-diameter ducts — conforming to curves that rigid boards cannot follow. Service temperature up to 650 °C, thicknesses from 30 mm to 120 mm, density from 80 to 120 kg/m³ — confirm exact temperature and dimension data by inquiry. Supplied from our own and partner factories — combined capacity up to 450,000 t/yr, with a one-container MOQ and LCL support.
- Perpendicular fiber strips flex around ducts, tanks, and equipment without cracking — unlike rigid board that breaks when forced around curves.
- Factory-applied facing provides finished insulation in one step — no separate blanket wrapping, facing application, and fastening sequence.
- Same non-combustible fire and temperature performance as standard rock wool board, but in a format designed for curved surfaces.
Quick Answer
Key questions buyers ask before sourcing this product.
What is it?
Rock wool lamella mat or shaped strips arranged for curved surfaces, tanks, ducts, and pipe wrapping routes.
Best for?
Tanks, vessels, ducts, large pipes, and curved equipment surfaces needing mineral wool flexibility.
Key advantage?
Lamella arrangement improves curved-surface fit while keeping the mineral wool option.
Options?
lamella mat type, facing, surface radius, thickness, density option.
Next step?
Share surface geometry, radius, facing, thickness, quantity, and document needs.
Problems This Product Solves
Common pain points this product is built to address.
Rigid rock wool boards crack when bent around high-temperature tanks and process vessels.
Dense rock wool board is too rigid for curved surfaces. Rock wool lamella strips flex around cylindrical vessels operating up to 650 °C — a temperature range that glass wool lamella cannot reach.
Standard blanket wrapping sags on vertical curved surfaces at high temperatures.
Flexible blankets lose contact and compress unevenly on vertical tanks and stacks. Lamella perpendicular fiber orientation holds even thickness on vertical curves, even under thermal cycling.
Process vessels and stacks above 350 °C need curved insulation that glass wool cannot handle.
Glass wool lamella serves up to approximately 350 °C. For higher-temperature vessels, exhaust stacks, and industrial process equipment, rock wool lamella provides the required temperature resistance.
Consistent insulation thickness is hard to maintain on large-radius curves with flat products.
Wrapping scored boards or blankets around large tanks produces variable thickness at joints. Rock wool lamella strips maintain uniform thickness across the curved surface due to factory-cut precision.
Engineered for Consistent Performance
Every batch is produced under controlled conditions and verified against international standards, so what you specify is what you receive — project after project.
Product Benefits
What sets this product apart in real projects.
Lamella strip arrangement conforms to curvature
Fits tanks, vessels, large-diameter ducts, and curved equipment without cracking or scoring rigid board.
Rock wool density and temperature rating in a flexible format
Maintains the fire resistance and temperature capability of rock wool while allowing curved-surface installation.
Faced options for outdoor and weather-exposed applications
Foil facing or other surface treatments protect the insulation on outdoor tanks, stacks, and exposed equipment.
Reduces gap risk on cylindrical surfaces
Lamella strips close tighter on convex curves than flat board joints, reducing thermal bridging.
Single-installer handling on elevated work
Flexible mat format is easier to handle on scaffolding or elevated platforms compared to rigid board panels.
Consistent thickness across curved profiles
Strip orientation keeps the insulation build-up uniform from inner face to outer face on curved geometry.
Best-Fit Applications
Rock Wool Lamella is most useful when the installation surface is curved, cylindrical, or irregular and rigid board cannot follow the geometry without cracking or gapping.
Storage tanks
Lamella conforms to large-radius tank shells without scoring or cracking rigid board.
Process vessels
Handles the curvature and elevated temperature range of reactor vessels, columns, and pressure vessels.
Large-diameter ducts
Wraps around round or oval duct sections more efficiently than cutting flat board to approximate the curve.
Chimney and stack wrapping
Non-combustible lamella handles the temperature and curvature of industrial chimneys and exhaust stacks.
Curved industrial equipment
Fits irregular or compound-curved surfaces on heat exchangers, turbine casings, and similar equipment.
Options & Variants
Choose the form that fits your application.
Standard Lamella
Strip-format lamella for curved industrial equipment surfaces.
Lamella Mat
Single-piece mat for long curved runs — fewer joints.
Why source Rock Wool Lamella from SinoInsulation
- Own factory plus a vetted partner-factory network — combined annual capacity up to 450,000 tons.
- MOQ from one 20ft container; LCL and mixed-container (multi-material) orders supported.
- Samples before bulk orders; custom packaging, compression packing, and private-label / OEM labeling.
- ISO 9001 and CE held; ASTM and AS/NZS test reports available on request, matched to the selected product.
- One inquiry, multiple materials: combine rock wool with glass wool, rubber foam, or cellular glass in a single order.
When It's Not the Best Fit
Rock Wool Lamella is not the best first choice for every insulation condition. Review the project before selecting rock wool lamella when:
Selection Guide
Answer these to narrow down the right specification.
What is the surface geometry and radius?
Confirms whether lamella is needed or whether board or pipe sections are more suitable.
What is the operating temperature range?
Determines the density and grade needed to handle the service condition.
What thickness is required?
Defines the insulation build-up for the thermal calculation on the curved surface.
Is foil facing or weather protection needed?
Determines whether foil faced lamella or unfaced lamella with separate cladding is the right option.
Is the installation indoor or outdoor?
Affects facing selection, weather protection, and cladding requirements.
Supply & Purchasing
SinoInsulation supports rock wool lamella sourcing for HVAC, industrial, and OEM programs.
Need datasheet or project documents?
Send your application and required product details. We can provide datasheet, packing information, and available supporting documents during quote review.
Quality & Market Certs
ISO 9001 quality system and CE marking held; ASTM and AS/NZS test reports available on request, matched to the selected product.
Product Datasheet
Get product data for the selected rock wool lamella type and option.
Packing & Labeling Details
Confirm carton, pallet, compression pack, private label, or mixed-SKU packing options.
Frequently Asked Questions
Answers to common questions about this product.
Lamella uses perpendicular fiber orientation with factory-applied facing, creating a flexible mat that holds shape around curves. Blanket is continuous mineral wool without the strip structure or factory facing.
Rock wool lamella handles higher temperatures and provides non-combustible fire documentation for industrial service. Glass wool lamella is lighter and lower cost for moderate building-grade applications.
For round pipes, pre-formed pipe sections are faster and more uniform. Lamella is better for rectangular ducts, large tanks, and surfaces where pipe sections do not fit.
Lamella provides a lighter, more flexible structure with factory-applied facing. Wired mat uses wire mesh for stronger mechanical retention on vibrating equipment or very high-temperature surfaces.
Request a Quote
Tell us the surface shape, temperature, and covering requirement — we will recommend the right lamella format, facing, and thickness.