About MENGWEI
Since 2010, MENGWEI has manufactured polyurethane systems, polyether polyols, additives, and specialty industrial chemicals from our Jinshan District facility — serving manufacturers, contractors, and distributors across more than twenty countries.
CareersAbout MENGWEI
Founded in 2010, Shanghai Mengwei Polymer Materials Co., Ltd. began with a focused vision: to build a polyurethane manufacturer that combined the technical depth of European chemistry leaders with the agility, scale, and partnership culture that international customers actually need from their supply chain.
Sixteen years later, our 186-person team operates dedicated production lines for rigid polyurethane systems, polyether polyols, PU additives, waterproofing coatings, and specialty industrial chemicals. We have grown without losing what made the company work in year one: every order is treated as a project, every customer is treated as a partner, and every formulation is delivered to specifications we put in writing.
MENGWEI connects polyurethane chemistry with practical manufacturing and construction needs: PUR/PIR sandwich panels and cold-chain insulation, building waterproofing and chemical grouting, polyurea protective coatings, flexible foam polyols, MS sealant resins, and formulation additives. From material selection and sample evaluation to technical documentation and supply planning, we help manufacturers, contractors, and distributors build solutions around their equipment, climate, and target specifications.
Year Founded
Years of Manufacturing
Team Members
Countries Served
Product Families
Jinshan District Facility
Application-focused chemistry
From insulation production to protective coatings, MENGWEI brings systems, raw materials, and formulation support together around your application. Start with your equipment, substrate, and target performance; build the material specification from there.
PUR/PIR systems for sandwich panels, plus spray foam and pipe insulation options. Discuss foam density, reaction profile, line conditions, and insulation requirements to match the system to your process.
Explore materials
Single- and two-component PU coatings and hydrophilic or hydrophobic grouting resins for roofs, basements, joints, and concrete cracks. Select according to substrate, water exposure, and application method.
Explore materials
Pure and hybrid polyurea spray systems for pools, tanks, and infrastructure protection. Review surface preparation, spray equipment, film thickness, and service conditions when specifying a coating system.
Explore materials
Flexible polyether and POP polyols, catalysts, silicone surfactants, and other PU additives for mattress and furniture foam formulations. Balance processing, cell structure, and target comfort properties through sample evaluation.
Explore materialsDiscuss formulation targets, evaluate samples under your processing conditions, and review TDS/SDS documentation before planning trial or repeat orders. Final performance and suitability should be confirmed through application testing.
MENGWEI POLYMER MATERIALS
Explore the MENGWEI workplace, from reception and work areas to meeting rooms and material displays.
Reception · Workspaces · Meeting rooms · Material displays
Reception, meeting rooms and work areas arranged around a clear central passage.
Natural wood, a light mineral counter and a quiet seating area frame the brand identity.
Shared desks, natural light and nearby meeting spaces support collaboration.
A generous meeting table and material display wall bring project conversations into focus.
A smaller discussion setting keeps material samples close to the conversation.
Foam blocks, panel sections and coating swatches illustrate the connection between materials and their uses.
A coffee counter and window-side seating introduce an informal place to pause and exchange ideas.
MENGWEI MATERIALS
A closer look at IBC packaging and container loading for MENGWEI materials.
Engineered for consistency, built for scale.
Our production complex in Jinshan District houses dedicated manufacturing lines for each major product family — rigid PU systems, polyether synthesis, additive blending, waterproofing coatings, and specialty chemistry. The site combines modern reactor systems, automated dispensing equipment, a dedicated R&D laboratory, and quality control capabilities under an ISO 9001-certified management system.
186 specialists across chemistry, production, quality, and customer service.
Our team brings together polyurethane chemists with decades of formulation experience, production specialists trained to international standards, dedicated quality control technicians, and a multilingual customer service team. Every customer inquiry connects directly with team members who can answer technical questions, not just relay messages.
In-house chemists for new formulation development and customer-specific solutions
Dedicated operators across rigid PU, polyether, additive, and coating lines
ISO 9001-certified QC testing every batch before release
Multilingual team serving customers across Asia, Europe, the Middle East, and the Americas
Four operating principles that define every customer relationship.
Every batch, every shipment, matched to the specifications we agreed in writing. Quality is not a moving target.
TDS, SDS/FISPQ, and full documentation provided upfront. No information barriers between you and our chemists.
Customer inquiries are answered within one business day by team members who can technically discuss your application — not just route the message.
We grow with our customers across years. Trial orders, recurring production, custom formulations, and capacity scaling — all handled by the same team.
Compliance with international standards as a baseline.
Full quality management system certification covering our entire production operation. Audited annually.
Registration, Evaluation, Authorisation, and Restriction of Chemicals compliance available for selected products serving the European market.
CE certification available for selected products, supporting customer market access across the European Economic Area.
From the ports of Shanghai and Qingdao to customers on five continents.
Global overview
Drag the globe to explore. Select a country and destination to follow a route.
Nearby countries / regionsChina · South Korea · Taiwan
Geographic illustration only. Actual port calls, routes, transfers and delivery arrangements are confirmed per sailing and order. Country and region labels describe geography.
Whether you need a single trial order or a long-term supply partnership, our team will respond within one business day.
