Linglang Manufacturing — Shandong, China
Sealant formulated to hold the joint.
Silicone, MS polymer, and acrylic sealants for construction, glazing, and general building — produced under one roof in Linqu County, Weifang City, and shipped into Europe, the Americas, and the Middle East.
Product range
Six formulations. One quality standard.
300 Sealant
Pure acrylic latex sealant for general-purpose interior and exterior caulking.
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400 Sealant
Modified sealant with a silyl-terminated polyether base — odorless and formaldehyde-free.
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GP Silicone Sealant
General-purpose acetic-cure silicone for glass, glazing and sanitary applications.
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700 Silicone Sealant
General-purpose acetic-cure silicone with anti-fungus and anti-bacterial protection.
Full Specs →
NP Weatherproof Silicone Sealant
Neutral-cure weatherproof silicone for stone, marble and curtain-wall joints.
Full Specs →
800 Weatherproof Silicone Sealant
Primerless, permanently elastic weatherproof silicone — no shrinkage, non-corrosive.
Full Specs →Why Linglang
Built to be trusted with the next order.
Largest in the region
The largest sealant producer in our area, with the capacity to supply distributor-level volumes on repeat.
One factory, start to finish
Mixing, filling, packing and loading happen under one roof — fewer hand-offs, tighter control.
Already shipping internationally
A dedicated foreign trade team already ships into Europe, the Americas and the Middle East.
National-standard manufacturing
Every line is produced to Chinese national standards, with batch control from raw material to carton.
A cartridge for every joint
Silicone, MS polymer and acrylic chemistries cover glazing, facade, structural and interior work.
One standard 300ml cartridge
One cartridge size across the line keeps ordering, palletizing and on-site use simple.
Sealant calculator
How much sealant does this job need?
Based on a simple rectangular-bead volume model: cartridge volume (300ml) ÷ (joint width × depth) = linear coverage per cartridge. Real-world yield varies with tooling, backer rod and substrate — confirm final quantities with our team.
From the floor
From the floor.
Sourcing sealant for the U.S. market?
Tell us the product, quantity, and timeline — we'll get back with pricing and lead time.