Nano Microporous Insulation Board Manufacturer

About Us

Guangzhou Anchor Technology Co., Ltd. manufactures nano-microporous insulation boards engineered for high-temperature industrial applications. Our boards combine fumed silica with infrared opacifiers and fibre reinforcement to deliver measured thermal conductivity from 0.021 W/(m·K) at 200 °C to 0.034 W/(m·K) at 800 °C — equivalent heat-stopping performance at a fraction of the thickness of conventional insulation.

Our application engineers support projects across steelmaking, petrochemicals, ceramics, glass, kiln and furnace linings, cold-chain transport, battery safety, and new-energy vehicles. We supply standard flat boards, CNC-cut arc segments, and custom-formed 3D parts, with facing options including aluminium foil, glass-fibre cloth, and PE shrink film.

We publish our measured values — density, thermal conductivity at four temperature points, and dimensional tolerance — on every datasheet, and we quote lead times as working-day ranges rather than guaranteed dates. Before you commit to a specification, a complimentary consultation with our engineering team is available.

Our Service

Customized

Provide customized products according to your requirements

Design

Our engineers provide a complete set of professional designs

Consulting

We provide professional consultation on insulation materials

Our Products

Vacuum Insulation Panel (VIP)

Our vacuum insulated panels (VIP) seal the same nano microporous core under vacuum for cold-chain and building applications below 80 °C — centre-of-panel thermal conductivity 0.004 W/(m·K), panel sizes up to 1200 × 800 mm, service life rated at 25 years and beyond.

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Why engineering buyers trust Anchor-tech

Published thermal data

Our standard microporous insulation board carries four-point thermal-conductivity data — 0.021 W/(m·K) at 200 °C, 0.025 at 400 °C, 0.028 at 600 °C, and 0.034 at 800 °C — the same temperature points a furnace-backup design references. Boards are produced in densities of 220–280 kg/m³ (the 250–350 kg/m³ range gives the best balance of conductivity and handling), from fumed silica with infrared opacifiers and a small fibre reinforcement. Standard boards carry a 1100 °C classification temperature and are rated for continuous service up to 1000 °C; hot-face shrinkage stays below 2% at 800 °C.

Typical ladle backup-layer builds

Ladle backup insulation is specified from the working lining outward. A representative build places a thin microporous board — typically 5–7 mm — directly against the steel shell, followed by a lightweight or high-alumina brick course, a castable layer, and finally the working brick. Keeping that first layer thin is deliberate: it can be added to an existing lining without redesigning the refractory stack or enlarging the shell. Reported shell-temperature reductions for builds of this type span a wide band, roughly 80–130 °C, and the width of that band is the useful part — the outcome depends on shell geometry, ambient conditions and the working lining, so a single figure quoted without the lining drawing should be read with caution. You can check a build against your own target shell temperature with our ladle insulation thickness calculator, or send us the lining drawing and we will review it.

Honest specifications

We state the limits, not just the headline numbers. Standard boards are stocked at 1000 × 615 mm in thicknesses of 10–50 mm; sizes outside that matrix are custom and carry a set-up cost. Above the 1000 °C continuous-service limit, shrinkage increases and the board should be de-rated in design — we say so at quotation stage rather than after delivery. Furnace atmosphere matters too: thermal conductivity is lowest under vacuum (around 0.01 W/(m·K)) and higher in hydrogen, so atmosphere-specific selection is part of our sizing support. Lead times are quoted as working-day ranges, because ocean freight and customs clearance introduce variance we do not control.

Application depth

One board formulation covers the whole steelmaking route, so a single grade and a single quality system carry from the ladle through to the reheat furnace. The board works as a backup layer behind the working lining in ladles, tundishes and torpedo ladles; as a wrap on hot-blast ducts, RH degasser walls and walking-beam furnace water-cooled skids; and as a thin alternative to thick insulating brick wherever lining space is already fixed. Each of those positions has its own design note on this site, so the constraints that apply to your route are one click away.

Frequently Asked Questions

Quick technical and commercial answers about our microporous insulation boards for engineering buyers, procurement teams, and installers. For project-specific questions not covered here, contact our application engineering team.

What does "nano microporous insulation" actually mean, and how is it different from regular high-temperature insulation?

Nano microporous insulation is a rigid panel made by pressing fumed silica — silicon dioxide particles with a pore size of 10–30 nm — together with infrared opacifiers and a small percentage of fibre reinforcement. The pore size is smaller than the mean free path of air molecules (about 90 nm at room temperature), which suppresses gas-phase conduction inside the panel. Combined with opacifiers that scatter infrared radiation, the result is a board with thermal conductivity around 0.020 W/(m·K) at 25 °C — roughly half that of still air. That is why a microporous board delivers the same heat-stopping performance at a fraction of the thickness of conventional insulation.

Can one factory really supply microporous board, formed shapes, and powder from the same production line?

Yes. Our product range is built on one core fumed-silica formulation delivered as standard rigid boards, flexible sheets, and formed 3D shapes, plus powder grade for filling cavities. Because they share the same base material and quality system, the thermal-conductivity and chemistry values on one datasheet carry across the full range — so a mixed order of standard boards and arc segments for the same ladle stays consistent from lot to lot.

What is the smallest order quantity you accept, and is there a price penalty for small lots?

Minimum order quantity depends on configuration. Standard boards in stock sizes and thicknesses carry the lowest MOQ; custom thicknesses, custom dimensions, formed 3D parts, and pre-formed arcs carry a higher MOQ because of set-up time. We confirm the exact MOQ and any small-batch set-up charge at quotation. Evaluation samples are welcome, and sample fees are credited against your first commercial order.

How long does a typical export order take from PO to delivery at a European or North American port?

Lead time depends on configuration and destination. Standard boards in stock dispatch faster than custom thicknesses or formed parts, which need set-up and verification time. We quote lead times as working-day ranges at the point of order — not as guaranteed dates — because ocean freight and customs clearance introduce variance we do not control. Air freight is available for urgent requirements and is priced per quote.

Can I get a sample before placing a commercial order, and what does the sample package include?

Yes — samples are part of our standard technical engagement. A typical sample package includes boards at the requested thickness, a printed technical data sheet with thermal conductivity at four temperature points (200 / 400 / 600 / 800 °C), a material safety data sheet, and a sample mill-test report with density and dimensional verification. Sample fees depend on configuration and are credited against your first commercial order above the minimum quantity.

Do you offer on-site technical support, or is it remote-only?

We offer both. Most engineering queries — sizing calculations, material selection, facing recommendations, and joint staggering — are handled remotely by our application engineering team, supported by drawings, thermal-survey reports from comparable installations, and datasheet comparisons. For larger or first-time installations we can arrange on-site supervision and crew training; availability and cost are confirmed per project.

How do you ensure consistent thermal performance from lot to lot?

Every production lot is sampled and tested for density, thermal conductivity, dimensional tolerance, and compressive strength before dispatch, and the results are compiled into a mill-test report that ships with the lot. Thermal-conductivity verification is performed on a heat-flow meter. The aim is to keep lot-to-lot variation tight so the numbers on the datasheet match what arrives on site.