Products
Low Conductivity Spacer
Low‑conductivity warm‑edge spacer is hollow composite profile manufactured by cold‑hot co‑extrusion technology, compounding high‑insulation flame‑retardant polymer and 304 stainless‑steel layer. Its hollow cavity reserves space for desiccant filling. Distinct from traditional all‑metal cold‑edge spacers, it interrupts thermal‑bridge pathways at glass perimeter, effectively improving interior‑surface temperature of glass edge
Features
Renqiu City Xinjian Metal Products Co., Ltd. is one of the most reliable manufacturers and suppliers of low conductivity spacer in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to wholesale customized low conductivity spacer from our factory. Also, free sample is available.
Low‑conductivity warm‑edge spacer is a core energy‑saving component for high‑performance insulating glass units. Hebei Xinjian Metal Products Co., Ltd, located in Dongcheng Industrial Zone of Renqiu City, is a scaled high‑tech manufacturer specialized in insulating‑glass auxiliary materials. Our plant covers 50,000㎡ with ten dedicated warm‑edge spacer extrusion lines. We develop three mature product series: composite warm‑edge spacer, PP co‑extruded stainless‑steel warm‑edge spacer and fiberglass‑reinforced warm‑edge spacer, covering full sizes 5.5A‑27A. Benefiting from low‑λ composite material structure, our spacer delivers outstanding anti‑condensation performance for passive‑house and low‑energy‑consumption building glazing. Beyond warm‑edge products, we also supply aluminum spacers, silicone sealants, hot‑melt butyl sealant, 3A molecular sieve and corner joint accessories, enabling one‑stop procurement for global window fabricators and engineering contractors
We provide technical datasheets and support sample testing for project pre‑validation
why choose us
Factory Advantages
As a scaled high‑tech insulating‑glass‑accessory manufacturer with 50,000㎡ production base, we own ten independent warm‑edge spacer production lines. Composite warm‑edge, PP co‑extruded stainless‑steel warm‑edge and fiberglass‑reinforced warm‑edge are all self‑produced in‑house, without external outsourcing. Full‑size range 5.5A‑27A covers most mainstream IGU market demands. We can deliver spacers and matching corner keys in one single shipment
We support project‑oriented bulk supply, OEM customization, document provision and factory audit for overseas clients. Besides warm‑edge products, we also supply aluminum spacers, sealants and molecular sieve, enabling consolidated one‑container shipment to cut procurement cost for international buyers
Main Features
Ultra‑low thermal conductivity λ=0.16 W/(m·K), greatly reduce thermal loss on glass edge and improve anti‑condensation performance for cold‑climate regions.
Hybrid polymer‑stainless‑steel construction balances mechanical rigidity and thermal‑insulation property, service life reaches 10‑20‑years under proper IGU processing
Good weather‑resistance, UV‑aging resistance, no volatile substance precipitation, friendly for Low‑E coated glass.
Nice bending property, compatible with automatic bending equipment; stable bonding performance matched with mainstream insulating‑glass sealants
Fire‑retardant performance, auxiliary noise‑reduction effect for double‑glazing system.
Multiple series & complete sizes, matched corner‑key accessories are available to simplify customer ordering
Material & Technology
High‑performance flame‑retardant polymer and grade‑304 stainless‑steel sheet are adopted as main raw‑materials. The whole production flow includes raw‑material screening, co‑extrusion compounding, precision punching, offline aging treatment and finished‑product inspection. We strictly control co‑extrusion temperature parameters to avoid internal delamination between polymer and stainless‑steel layers. Ventilation holes are uniformly distributed to guarantee stable moisture‑absorption efficiency of molecular sieve. For PP co‑extruded stainless‑steel type, formula is optimized for better bending flexibility. Fiberglass‑reinforced version adds fiber‑reinforcement component to enhance structural rigidity for large‑size glazing. Every batch undergoes sampling inspection for dimension, bending performance and appearance before warehouse‑in
Functions
Physically separate two glass panes and maintain fixed cavity thickness of insulating glass unit
Inner hollow cavity accommodates 3A molecular‑sieve desiccant to absorb moisture and volatile organics trapped inside IGU cavity
Suppress thermal‑bridge transmission on glass perimeter, increase edge‑surface temperature of glass and mitigate condensation risk in cold‑climate zones
Cooperate with hot‑melt butyl primary‑seal and silicone secondary‑seal system to secure long‑term gas‑tightness and water‑tightness for double‑glazing
Offset pressure difference induced by diurnal & seasonal temperature variation, reduce thermal‑stress damage risk and extend overall service life of insulating‑glass units
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