Frequently Asked Questions

Glasswool (glass fiber insulation) is made by melting glass at high temperature and spinning it into fibers. It is lightweight with excellent thermal and acoustic performance, making it the most widely used insulation for industrial piping, ductwork and building walls. It is graded by density — 24K, 32K, 48K, 64K and so on — and is suitable for service temperatures up to roughly 350°C. We supply it as rolls, blankets and pipe sections.

Cerakwool is a ceramic insulation for extreme temperatures from 800°C to 1430°C. It suits steel mills, petrochemical plants, incinerators and heat-treatment furnaces — environments ordinary insulation cannot survive. Grades are 1100°C, 1260°C and 1430°C (HTZ), available as blanket, board, module, paper and rope.

Glasswool is glass-fiber based: lightweight, excellent thermal and acoustic performance, and very good value for money. Mineral wool (rock wool) is made from natural minerals such as basalt, offering higher heat resistance and better fire performance — usable above 600°C. For general insulation and sound absorption choose glasswool; for fire compartments and medium-to-high-temperature equipment choose mineral wool.

Aerogel is an ultra-light, high-performance insulation with a nano-porous structure — 3 to 5 times more effective than conventional insulation at the same thickness. It is used where space is tight or thin profiles are required: LNG piping, cryogenic equipment, plant piping and shipbuilding. Its service range is a broad −200°C to 650°C.

An insulation jacket is a removable, custom-made insulating cover for valves, flanges, pumps, instruments and other pipe fittings. It suits equipment that needs regular inspection, and the material and thickness are engineered to the service temperature and installation environment. High-temp canvas is a heat-resistant textile used at duct expansion joints and thermal-expansion sections, available in Teflon, silicone, silica and Kevlar.

Silica materials are heat-resistant insulation made from high-purity silicon dioxide (SiO₂) fiber, stable above 1000°C. They come as mats, felts, blankets, fabrics, sleeves and ropes, and are used for high-temperature pipe insulation, welding heat shields, protective clothing and high-temperature sealing.

Enter the product category, service conditions and quantity on our Contact page and a specialist will send you a quotation quickly. You can also call +82 10-4266-9745 or reach us on KakaoTalk. For custom-made items such as insulation jackets, please include dimensions, service temperature and installation environment so we can quote accurately.

MOQ varies by product. Standard stock items such as glasswool and Cerakwool can be bought in small quantities; for custom-made items like insulation jackets the unit price depends on volume. Tell us the product and quantity you need and we will advise exactly.

Lead time depends on the product. (1) Standard stock items (glasswool, mineral wool, Cerakwool blanket, urethane pipe insulation): same day to 3 days when in stock. (2) Special sizes or bulk orders: 1–2 weeks. (3) Custom insulation jackets (4R covers): typically 1–3 weeks after dimensions are confirmed, depending on quantity and complexity. (4) Imported special materials (aerogel, carbon insulation): 2–4 weeks if stock is exhausted. For urgent requirements, call us first to confirm stock and the shortest possible lead time: +82 10-4266-9745.

Poor storage degrades insulation before it is ever installed. (1) Glasswool and mineral wool: keep on pallets off the ground; protect from rain and moisture (keep the plastic wrap intact) — absorbed moisture reduces thermal performance. (2) Cerakwool (ceramic fiber): store packaged and dry; limit stacking height to prevent cracking. (3) Urethane pipe insulation: keep out of direct sunlight and heat (never store above 50°C) — UV exposure hardens the surface. (4) Rubber foam insulation: store cool and dry, away from ozone and UV. (5) Aerogel: keep sealed to prevent moisture uptake. (6) Rigidizers and ceramic bonds: never let them freeze below 0°C; use promptly after opening. General rule: shield from sun and rain, store dry indoors, and minimise packaging damage.

Samples are available after a phone consultation. There is no instant online request — call +82 10-4266-9745 with the product name, intended use and quantity, and we will advise whether and how a sample can be provided.

Yes, anywhere in Korea. Beyond Seoul and Gyeonggi, we have delivered to industrial complexes in Busan, Ulsan, Yeosu, Pohang and Gwangyang. Delivery schedule and transport method depend on order volume and destination.

Tell us the intended use, service temperature (normal and maximum), the item and its dimensions (length × outside diameter), the location (indoor/outdoor), whether it must be removable, the operating environment (oil, steam, chemicals) and the required thickness, and we will prepare a custom quotation. A hand sketch or photo is perfectly acceptable. For technical advice call +82 10-4266-9745.

A 4R cover is a removable, custom-made insulating cover for valves, flanges, pumps and instruments. It is applied to complex shapes that conventional insulation cannot cover, and it can be taken off and refitted easily during scheduled inspections. The inner fill (glasswool, Cerakwool, etc.) and outer skin (canvas, silica, Teflon, etc.) are selected to match the service temperature and environment, covering ambient up to 1000°C depending on materials.

For an accurate quotation we need: (1) the item name (e.g. 6-inch gate valve); (2) service temperature (normal / maximum); (3) overall dimensions (length × outside diameter in mm); (4) location (indoor/outdoor); (5) whether it must be removable; (6) operating environment (oil, steam, chemicals); (7) required thickness in mm. If you do not have exact dimensions, a hand sketch or photo is enough to quote.

High-temp canvas is a heat-resistant textile for duct expansion joints, hot pipe connections subject to expansion and contraction, and incinerator or boiler flue joints. Grades include silicone canvas (300°C), Teflon canvas (260°C), silica canvas (1000°C) and Kevlar canvas (high strength, heat resistant). Its job is to absorb thermal expansion while maintaining a gas-tight seal.

Cryogenic pipe insulation is used on lines carrying LNG (−162°C), liquid nitrogen (−196°C) or liquid oxygen (−183°C). Unlike ordinary insulation, its job is to block ambient heat from entering the pipe so boil-off losses are minimised. PIR urethane pipe insulation, PIS foam and aerogel are the usual choices, always combined with condensation control.

PUR (polyurethane) is flexible and easy to fabricate, and is widely used on general insulated piping. PIR (polyisocyanurate) has higher heat resistance and dimensional stability, making it suitable for high-temperature and high-pressure service. Both have low thermal conductivity and deliver strong energy savings, and are available for pipe sizes 15A–500A in thicknesses from 25T to 120T.

Basofoam is a special foam insulation for hygiene-critical environments: cleanrooms, food and pharmaceutical plants and semiconductor facilities. Unlike ordinary rubber foam it is non-contaminating and antimicrobial, meeting FDA-grade hygiene requirements. It is supplied as pipe insulation, sheet and foil-faced sheet, with a service range of −40°C to +105°C.

Ordinary rubber foam (NBR/EPDM) is an inexpensive general-purpose product for chilled and hot water piping. Basofoam is a high-specification product engineered for hygienic clean environments in food, pharmaceutical and semiconductor plants, where non-contaminating, non-toxic and antimicrobial properties are essential. For cleanrooms and GMP-certified facilities we recommend Basofoam.

Recommended materials by temperature: ambient to 200°C — glasswool, urethane pipe insulation, rubber foam. 200–600°C — mineral wool, high-temperature glasswool. 600–1000°C — Cerakwool (ceramic fiber), silica materials. Above 1000°C — high-temperature Cerakwool (HTZ 1430°C), high-purity silica, aerogel. We recommend a technical consultation for a precise selection.

Pipe insulation is selected by service temperature and pipe diameter. Low temperature (ambient–80°C): urethane pipe insulation (PUR/PIR) or rubber foam. Medium temperature (80–350°C): glasswool pipe sections (self-seal covers). High temperature (350–600°C): mineral wool pipe sections. Very high temperature (600°C+): Cerakwool insulation systems. Tell us the pipe diameter (in A) and we will specify the right product.

Cerakwool (ceramic fiber) is for high-temperature insulation and refractory duty from 800 to 1430°C — furnace walls, ducts and pipe insulation. Silica materials suit applications above 1000°C that also demand flexibility: heat-resistant fabrics, sleeves, protective clothing and packing. As a rule: choose Cerakwool when insulation performance comes first, silica when flexibility and chemical resistance matter.

Energy savings rise as thermal conductivity (λ) falls. Lowest: aerogel (about 0.015 W/mK). Mid-range: glasswool and mineral wool (about 0.03–0.04 W/mK). Relatively higher: standard urethane (about 0.025–0.035 W/mK). If thickness is constrained, choose aerogel; if cost-effectiveness matters most, choose glasswool or mineral wool.

Outdoor piping needs a material combination that resists UV, rain and temperature swings. Select the insulation by temperature as you would indoors — the critical choice is the cladding. (1) Aluminum casing: the standard outdoor jacketing. Good corrosion resistance and long service life, 0.5–1.2 mm thick. (2) ALGC: acceptable on small-bore pipe or short-term exposure, but the aluminum layer can delaminate under long-term outdoor exposure. (3) Stainless steel casing: recommended for coastal salt environments and chemical plants where corrosion risk is high. (4) Color-coated casing: available where appearance matters. Waterproof sealant (caulking) and correct lap orientation (facing downward) are the keys to keeping water out. Tell us the environment (coastal / general / chemical) and pipe diameter and we will specify the best cladding.

Condensation occurs when a pipe or equipment surface falls below the dew point of the surrounding air. (1) Choose low-absorption materials: closed-cell products (PIR urethane, rubber foam, Basofoam) absorb very little moisture, so performance barely degrades if condensation does occur. Glasswool and mineral wool lose performance sharply when wet, so a vapour barrier is essential. (2) Seal every joint: moisture entering through gaps condenses inside the insulation. Seal joints completely with aluminum tape or sealant. (3) Use adequate thickness: insulation that is too thin lets the surface drop below the dew point, causing external condensation. Thickness must be calculated for the site's temperature and humidity. (4) Recommended for chilled and refrigeration lines: PIR urethane pipe insulation, rubber foam, and Basofoam for hygienic environments. Tell us your service temperature and ambient humidity and we will help design the system.

When you need insulation and acoustic performance together, material choice matters. Absorption is best in porous materials, and lower densities favour low- and mid-frequency absorption. (1) Glasswool: one of the best acoustic insulations available. Densities of 24K–32K are optimal for absorption, and it is used extensively for duct lining, plant-room walls and acoustic panels. (2) Mineral wool: similar absorption to glasswool with added fire performance — ideal for noisy machine rooms, generator rooms and air-handling plant. (3) Aerogel, urethane and rubber foam: excellent thermal performance but weaker acoustically than glasswool or mineral wool. If absorption is the main goal, choose glasswool or mineral wool. Tell us the noise frequency band and the location (duct interior / wall / floor) and we will advise on thickness and density.

Thickness is set by three factors: service temperature, the material's thermal conductivity (λ), and the target heat loss or legal minimum. (1) By temperature: the greater the difference between pipe and ambient temperature, the thicker the insulation. As a rule of thumb, add 25–50 mm per 100°C of difference. (2) By λ value: a low-λ material (aerogel, 0.015) can be thinner; a higher-λ material (glasswool, 0.036) must be thicker. For equal performance, 30 mm of aerogel ≈ 72 mm of glasswool. (3) By legal minimum: under Korea's Energy Use Rationalization Act, facilities above a certain size must meet minimum insulation thickness requirements. (4) Practical field guidance: low temperature (below 80°C) 25–50 mm; medium (80–300°C) 50–100 mm; high (300°C+) 100 mm or more. Send us pipe diameter, operating temperature and allowable heat loss and we will calculate the thickness.

Under Korean building and fire codes, non-combustible or better (semi-non-combustible) insulation is mandatory in the following areas. (1) Fire compartment boundaries (walls, floors, ceilings): non-combustible required — use inorganic materials such as glasswool, mineral wool or Cerakwool. (2) External wall insulation on apartments and buildings: semi-non-combustible or better (tightened in 2022) — glasswool board or mineral wool board recommended. (3) Piloti ceilings and underground car parks: non-combustible. (4) Interiors of retail, medical and educational facilities: semi-non-combustible or better. (5) Escape routes (stairs, corridors): non-combustible. (6) Hazardous-material handling areas on industrial sites: non-combustible recommended. Certified products must carry a KS certificate or test report from an accredited laboratory (KCL, FITI, etc.). Sebang Provision supplies fire certificates with the products we deliver. To request certificates, call +82 10-4266-9745.

ALGC (Aluminium + Glass Cloth) is a composite facing laminating aluminum foil to glass-fiber cloth, and is one of the most widely used insulation jacketing materials. (1) Radiant heat barrier: the aluminum surface reflects infrared radiation, improving overall insulation efficiency by up to 10–20%. (2) Vapour and water resistance: the aluminum layer blocks moisture ingress. Since wet insulation loses 30–50% of its performance, a vapour-tight finish is essential. (3) Mechanical protection: the glass-cloth layer protects the insulation from impact and abrasion and helps it hold its shape. (4) Appearance: the silver surface gives a clean finish and tidies up exposed pipe runs. (5) Light weight: far lighter than metal jacketing (aluminum casing), so it adds no meaningful load to the pipe. ALGC is mainly used as facing on glasswool and mineral wool, and suits indoor piping and ductwork. For long-term outdoor exposure we recommend aluminum casing or stainless steel jacketing instead.

A robot cover is a custom-made protective jacket for the joints, cables and sensors of industrial robots working in harsh conditions — welding, painting, die casting and hot pressing. It shields the robot body from sparks, radiant heat, paint overspray and metal debris, extending service life and reducing unplanned downtime. Recommended materials by process: (1) Welding robots — silica cloth or Kevlar cloth outer skin with Cerakwool blanket fill, for spark and radiant-heat protection. (2) Painting and sealing robots — Teflon-coated cloth outer skin: paint does not adhere and it cleans easily. (3) Die casting and foundry robots — silica cloth outer skin with 1100°C Cerakwool fill, for 800°C+ metal debris. (4) Food and pharmaceutical robots — Teflon skin with Basofoam fill: waterproof and antimicrobial. Send us the robot model, the process, and the main hazards (sparks / heat / paint) and we will prepare a custom quotation. Photos or drawings speed fabrication up considerably. Technical advice: +82 10-4266-9745.

Where acids, alkalis, solvents or oils can contact the insulation, chemical resistance must be verified. Recommended materials by role: (1) Outer skin: Teflon (PTFE) coated cloth — resistant to almost all acids, alkalis and solvents, with the highest chemical resistance available. It is the most common outer skin for chemical-service insulation jackets. (2) Pipe insulation: PIR urethane — durable in general oil and moisture environments; add a Teflon skin where strong acids or alkalis make direct contact. (3) High-temperature chemical service (300°C+): silica materials or Cerakwool — good acid resistance, suitable for hot chemical gas lines. (4) Jacket fill: glasswool, mineral wool or Cerakwool depending on the chemicals involved. Since the outer skin does the chemical blocking, selecting it correctly comes first. Tell us the chemical, concentration and temperature and we will specify the right combination. Technical advice: +82 10-4266-9745.

Cleanroom insulation must be assessed on four points: particle shedding, non-combustibility, antimicrobial properties and water absorption. Recommendations by ISO class: (1) Semiconductor and display cleanrooms (ISO 1–6): PIR urethane pipe insulation fully sealed with aluminum jacketing, or aerogel where space is tight. Never install glasswool or mineral wool exposed without a facing — fiber shedding is unacceptable. (2) Pharmaceutical and bio GMP (ISO 7–8): Basofoam is the strongest recommendation, being antimicrobial, non-contaminating and FDA-compliant. PIR urethane with a PVC skin is also acceptable. (3) Food plants (HACCP): Basofoam with stainless steel jacketing; complete joint sealing is essential. Tell us the cleanroom class and the pipe duty and we will recommend materials that meet the ISO requirement.