Our primary high-performance liquid rubber grades tailored for thermoset epoxy toughening, low-temperature flexibility, and hydrolytic stability under tropical industrial climates in Hai Phong, Bac Ninh, and Binh Duong.
Oxirane Oxygen: ≥ 4.5%
Viscosity (45°C): 5,000–12,000 mPa·s
Key Application: PCB Underfill & Potting
Hydroxyl Value: 0.70–0.90 mmol/g
Styrene Content: 20% – 25%
Key Application: Heavy-Duty Waterproofing
Acrylonitrile (AN): 16% – 26%
Hydroxyl Value: 0.55–0.75 mmol/g
Key Application: Fuel & Oil System Gasketing
Carboxyl Value: 0.50–0.65 mmol/g
AN Content: 17% – 27%
Key Application: Structural Aerospace Bonding
As Vietnam solidifies its position as a powerhouse of global high-precision manufacturing, tier-one multinational enterprises and local chemical blenders are facing unprecedented demands for specialty polymers.
Driven by semiconductor assembly, consumer microelectronics, and smartphone surface mount devices (SMD), the need for ultra-pure, moisture-resistant liquid rubber potting (such as EPB and HTBN) is compounding annually by 14.8%. These formulations prevent dielectric breakdown under Vietnam's 85%+ relative humidity conditions.
Vietnam's expanding shipbuilding yards and EV automotive platforms demand specialized structural adhesives modified with carboxyl-terminated reactive elastomers. Formulations must survive severe saltwater corrosion, extreme cyclical thermal loads, and rigorous vibration fatigue on heavy transport routes.
Global athletic footwear titans shifting production bases to Vietnam require liquid butadiene modifiers (LSBR, MLPB) as reactive plasticizers to optimize soling rubber crosslink densities, enhancing rebound resilience while drastically curbing abrasion loss in tropical temperatures.
Understanding the micromechanics of liquid rubber toughening in brittle epoxy matrices. The incorporation of reactive functional terminal groups ensures controlled phase inversion, optimizing fracture energy (G1c) without compromising glass transition temperatures (Tg).
During epoxy resin crosslinking with polyamine or anhydride curatives, CTBN and ATBN dissolve initially, subsequently precipitating as 1–5 μm elastomeric domains. These domains trigger localized shear yielding and crack pinning, raising impact resistance by 300% to 500% in electronics encapsulation.
By integrating oxirane rings directly along the polybutadiene backbone, EPB achieves complete co-crosslinking with bisphenol-A and cycloaliphatic epoxies. This delivers exceptional dielectric constants (< 2.6 at 1 GHz) essential for 5G wireless telecommunication modules assembled in North Vietnam.
Polar maleic anhydride pendants transform inert polybutadiene chains into highly reactive compatibilizers for polyamide (PA), polyester (PET), and inorganic silica/talc slurries. Prevents filler agglomeration and lowers blend viscosity in high-speed extrusion lines.
Our smart polymer facilities leverage automated continuous polymerization, closed-loop NMR monitoring, and high-vacuum degassing columns to produce synthetic rubbers with vanishingly low VOCs, tight polydispersity indices (PDI < 1.8), and guaranteed zero-water contamination.
By using distributed control systems (DCS) across our butadiene anionic polymerization tracks, we regulate polymer chain propagation within ±150 g/mol limits. This ensures precise batch-to-batch repeatability for your production runs in Vietnam without requiring compounding adjustments.
Under the ASEAN-China Free Trade Agreement, import tariffs into Vietnam for qualifying polymers can be reduced from statutory standard MFN duties to zero tariff rates. Our dedicated export documentation team provides accurate, compliant Form E certificates alongside GHS-compliant Vietnamese Safety Data Sheets.
Located near major southern Chinese maritime terminals, our shipping routes guarantee 3 to 5 calendar days transit to Haiphong Port (Northern Hub) and Cat Lai Port (Ho Chi Minh City). We also support overland rail freight through the Pingxiang–Dong Dang corridor for urgent containerized runs.
Our liquid rubbers adhere strictly to stringent international environmental mandates, ensuring seamless integration into products destined for the European Union, Japan, and North America from Vietnam production lines.
Free from restricted heavy metals, short-chain chlorinated paraffins (SCCP), phthalates, and SVHC chemical candidates, certified via accredited testing authorities including SGS and Intertek for tier-one OEM qualifications.
We supply in 25 kg fluorinated HDPE containers for sampling and pilot lines, 200 kg coated internal steel drums with nitrogen purging, and 1,000 kg IBC containers with anti-static discharge valves for industrial batch scales.
Our bilingual polymer engineering specialists assist Vietnam-based blenders with curing curve profiling, rheological testing, stoichiometry computation, and pre-production trial validations.
Complete catalog of reactive liquid elastomers, carboxylates, grafted polybutadienes, and precision specialty polyethers manufactured in China for Vietnam's industrial and chemical processors.
Amine Value: 80–120 mg KOH/g
AN Content: 16% – 19%
Application: Fast Structural Epoxy Curing
Vinyl-1,2 Content: 30% – 50%
Hydroxyl Value: 0.80–0.95 mmol/g
Application: Cable Splice & Electrical Potting
MA Graft Ratio: 5% – 15%
Viscosity (25°C): 8,000–25,000 mPa·s
Application: Polymer Blending & Fillers
Bound Styrene: 25% – 45%
Molecular Weight: 5,000–10,000
Application: Green Tire Processing & Footwear
Total Carboxyl: 0.45–0.70 mmol/g
AN Content: 22% – 28%
Application: High-Adhesion Sealants & Coatings
Molecular Weight: 600–1,000
Hydroxyl No.: 160–190 mg KOH/g
Application: High-Flexibility Polyurethane
Molecular Weight: 3,000–5,000
Hydroxyl No.: 28–35 mg KOH/g
Application: High-Toughness Elastomer Gels
Molecular Weight: 1,500–2,500
Hydroxyl No.: 50–70 mg KOH/g
Application: Automotive PU Sealants & Foams
Clear, direct answers regarding custom synthesis, logistics, shelf life under tropical storage, and cross-border commercial terms.
Connect directly with our polymer synthesis engineers to request technical datasheets, order qualification samples, or receive a formal CIF quote for Haiphong or Ho Chi Minh City.
