Importers and distributors worldwide source construction and photovoltaic sealants from a 50,000 t/yr ISO 9001 certified factory in Weihai, China.
Supplier-declared, pending confirmation
One- and two-component silicone sealants covering general glazing, neutral weatherproofing, curtain wall, anti-mildew, high-temperature (-60 °C to 300 °C), and structural bonding applications.
UL94-FV-0 and intumescent-grade sealants for fire and smoke penetration sealing, halogen-free and solvent-free formulations available.
Neutral-cure silicone sealants and two-component potting adhesives (UL94-V0) engineered for solar panel sealing, bonding, and junction box encapsulation.
One- and two-component PU sealants with strong multi-substrate adhesion plus one-component PU foam for construction filling, insulation, and soundproofing.
Two-component epoxy systems for structural concrete patching (exceeds concrete strength in 3 hours), rebar anchoring, and anti-mildew tile grouting.
Silane-modified, acrylic, and construction grab adhesives for low-odor interior and exterior bonding, plus quick-drying aerosol spray paint for indoor and outdoor finishes.
A single site in Weihai producing 50,000 tons per year allows Chengjing to fulfil large-volume distributor and importer orders without subcontracting.
Silicone, PU foam, PU, MS, acrylic, epoxy, and nail-free formulations are produced under one roof, simplifying sourcing for buyers who need multiple adhesive and sealant types.
Both quality management and environmental management systems are third-party certified, supporting buyers who must meet import or tender compliance requirements.
The CJ-145 PV junction box potting adhesive carries a UL94-V0 flame rating, and the CJ919 sealant meets FV-0 fire-retardant classification, enabling supply to regulated project types.
Dedicated product lines are formulated for construction, photovoltaic, electric power, and automotive applications rather than repurposed general-purpose products.
Founded in 2010, Chengjing has 15 years of continuous production in polymer sealing materials, giving importers a trackable supplier history.
Chengjing is a direct manufacturer based in Weihai, China. Products are made at its own facility with an annual production capacity of 50,000 tons.
Current product lines are formulated for construction, photovoltaic (solar) module assembly, electric power infrastructure, and automotive applications.
The company holds ISO 9001 (quality management) and ISO 14001 (environmental management) certifications. The CJ-145 PV Junction Box Potting Adhesive is UL94-V0 rated. Buyers should request product-level certification documents for specific SKUs before ordering.
Products are classified under HS 3214.10 (glaziers' putty, grafting putty, resin cements, and caulking compounds), 3506.10 (prepared glues and adhesives), and 3916.90 (monofilaments and rods of plastics). Buyers should confirm applicable codes with their customs broker for their specific import market.
This information is not confirmed in the current supplier profile. Submit an inquiry through the form below and specify your OEM or private-label requirements; the Chengjing team will respond directly.
Use the inquiry form on this page, include the SKU name or product category, your target market, and estimated annual volume. The Chengjing team will follow up with pricing and sample availability.