Kingflex
High-performance thermal and barrier products engineered for institutional, commercial, and HVAC operations in Ontario.
The Greater Toronto Area (GTA) experiences a challenging continental climate categorized under ASHRAE Zone 5 and 6. With extreme temperature fluctuations ranging from humid summer days reaching up to +35°C to brutal winter drop-downs of -30°C, commercial building envelopes must be insulated with high R-value materials to secure thermal envelope integrity.
Under the latest mandates of the Toronto Green Standard (TGS) Version 4, multi-unit residential structures and commercial complexes are required to cut thermal energy demand intensity (TEDI) drastically. Rock wool insulation provides an exceptional design capability here. With its thermal resistance remaining constant even under temperature changes, it mitigates thermal bridging in rainscreen systems, masonry cavity walls, and heavy roofing assemblies.
Furthermore, Toronto's dense high-rise profile (such as in Downtown, North York, and Mississauga) demands robust building materials. Since mineral wool boasts high fire resistance with melt temperatures exceeding 1000°C, it serves as the ultimate perimeter fire containment and safing material in architectural designs.
Continuous insulation (CI) systems utilizing rock wool board prevent condensation in Ontario's highly vapor-variable climate. By positioning the dew point outside the structural sheathing, it eliminates mold growth and wood-frame or steel-stud structural rot.
With high density (40 to 120 kg/m³), our mineral wool boards drastically reduce Sound Transmission Class (STC) ratings in busy urban districts close to Gardiner Expressway and Highway 401.
Pioneering energy-saving materials since 1979 with strict compliance and verified R&D.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Kingflex research development and production department is located in the well-known capital of green-building materials in Dacheng, China. It is an energy-saving, environmentally friendly enterprise concentrating on the research, development, production, and sales.
In operation, Kingflex takes energy saving and consumption reduction as its core concept. We provide insulation solutions via comprehensive consultation, research and development production, installation guidance, and post-sale service to lead the development of the global building materials industry.
Kingflex is established by the Jinwei Group, which possesses more than 40 years of history. Established in 1979, the group was the first manufacturer of thermal insulation materials north of the Yangtze River.
Our employees are amazing in their own right, but together they are what makes Kingflex a rewarding place to work. We are a tight-knit, talented group with a shared vision of giving consistently first-class service. Kingflex has 8 professional engineers in our R&D Department, 6 professional international sales specialists, and 230 workers in our production department.
At present, Kingflex operates 5 large automatic assembly lines, with an annual production capacity of more than 600,000 cubic meters. We are a designated production enterprise appointed by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
Providing clear decision criteria for mechanical, piping, and building envelope designers in Canada.
| Parameter | Mineral Rock Wool Insulation | Elastomeric Rubber Foam (Kingflex) | Relevant Canadian Standards |
|---|---|---|---|
| Raw Material Basis | Basalt stone & slag (mineral fibers) | Nitrile Rubber & PVC (NBR/PVC) | - |
| Max Service Temp | Up to 650°C (1200°F) for industrial pipes | -40°C to 105°C (-40°F to 221°F) | ASTM C547 / ASTM C534 |
| Fire Behavior | Non-combustible (Melt temp > 1000°C) | Flame retardant (Class V-0/Class 1) | CAN/ULC-S114 / CAN/ULC-S102 |
| Moisture Resistance | Water-repellent additives, porous structure | Closed-cell structure (>98% closed cell rate) | ASTM C1104 / ASTM E96 |
| Density Range | 40 to 120 kg/m³ | 40 to 55 kg/m³ | ASTM C303 |
| Primary GTA Applications | High-rise curtain walls, high-temperature steam lines, sound dampening in drywall | HVAC chilled water lines, VRF refrigerant piping, refrigeration ducts | OBC Section 9.25 |
How our materials solve specific design and engineering hurdles in Toronto's regional sectors.
Toronto's extensive downtown deep lake water cooling and steam networks require highly reliable pipe insulation. Our Rock Wool Thermal Insulation Pipes provide structural rigidity, heat loss mitigation, and corrosion under insulation (CUI) reduction for steam piping up to 650°C.
Under the Ontario Building Code (OBC), mid-rise and high-rise construction projects must employ non-combustible cladding systems. Our mineral wool boards achieve zero flame-spread and zero smoke-developed indexes (tested to CAN/ULC-S102), making them ideal for curtain wall spandrel panels.
With urban densification in areas like Liberty Village and the Waterfront, acoustic isolation between residential units is vital. The sound absorption coefficients of our high-density rock wool core diminish high and low-frequency airborne noises across standard drywall studs.
For wholesale building material suppliers, commercial insulation contractors, and mechanical engineering firms in Toronto and the GTA, securing reliable supply chains is key to project profitability. Importing directly from our advanced factory in Dacheng, China, delivers major commercial benefits:
Our products undergo third-party assessments to guarantee on-site performance and compliance.
CE Structural Certification
Standardized Quality Certification
ISO Quality Management Certification
RoHS Environment Compliance
Detailed material profiles of our core elastomeric and mineral wool components.
Material: NBR/PVC
Thickness: 6mm - 50mm
Density: 40 - 55 kg/m³
Service Temperature Range: -40℃ to 105℃
1. Central air conditioning: Heat insulation for air ducts and pipes.
2. Buildings: Wall, roof and basement thermal & sound insulation.
3. HVAC & water supply: Anti-condensation and anti-freezing for pipes.
4. Industrial plants: Insulation for equipment, steam pipes and storage tanks.
Material: NBR/PVC
Thickness: 9mm - 40mm
ID Range: 6mm - 114mm
Density: 40 - 55 kg/m³
Service Temperature Range: -40℃ to 105℃
1. Central air conditioning chilled/hot water pipes and condensate pipes.
2. Building HVAC & water supply pipes: antifreeze and anti-condensation.
3. Ventilation and equipment room pipes for hotels, malls and hospitals.
4. Thermal & cold insulation for industrial steam and process pipes.
Select from our certified range of materials for commercial HVAC, low-temperature systems, and acoustic setups.
Detailed answers concerning local building codes, installation practices, and international procurement logistics.
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation. Its closed-cell structure prevents vapor transmission, making it perfect for cold fluid lines where condensation is a concern.
Yes, our rubber foam insulation products are fire retardant, meeting strict safety standards for building and industrial projects. They possess self-extinguishing properties that prevent fire propagation.
Rubber foam is flexible, closed-cell, and moisture-proof, which is optimal for HVAC lines, VRF, and condensation control. Rock wool is a high-density fibrous material, exceptionally resistant to high temperatures and non-combustible. It is ideal for structural fire protection, heavy industrial steam lines, and partition acoustic barriers.
Yes, we support comprehensive OEM services to meet different project needs. We customize physical dimensions, thermal parameters, foil coatings, density, and backing adhesives to match design requirements.
Our products have passed BS 476, CE, REACH, ROHS, UL94, ASTM, and other international certifications, ensuring reliable product quality and compliance with global standards, including those specified in Canada.
Yes, all products coming off our 5 automated production lines feature batch coding, raw material verification logs, and continuous inspection records, enabling complete quality traceability.
We can produce roll insulation spanning thicknesses from 6mm up to 50mm, allowing developers to meet target thermal properties with single-layer wraps.
Under typical environmental conditions and standard professional installations, our NBR/PVC elastomeric rubber pipes and boards have an operational service life of approximately 10 to 15 years.
For architectural assemblies in Ontario, materials must meet CAN/ULC-S114 to be classified as non-combustible. Furthermore, CAN/ULC-S102 tests verify that our rock wool products exhibit low Flame Spread and Smoke Developed Ratings, adhering strictly to the fire safety requirements of high-rise building envelopes.