The 2025 Canton Fair Spotlight: Innovations in Construction and Household Chemicals Aligned
Elevating Industry Standards: Polyurethane Foam, Butane Gas, Air Fresheners, and Insecticide Spray at the 2025 Canton Fair
Why the 2025 Canton Fair Matters for Global Suppliers
The 137th China Import and Export Fair (Canton Fair), held from April 15–19, 2025, in Guangzhou, has solidified its reputation as the world’s premier trade event. This year’s exhibition spans 1.55 million square meters, featuring over 31,000 exhibitors across 55 specialized sections, including advanced manufacturing and sustainable solutions. Among the standout products are polyurethane foam sealants, butane gas, air fresheners, and insecticide sprays—all critical to construction and household industries.
Dongyuan Technology presented a variety of aerosols products at the Canton Fair: building filling polyurethane foam, butane gas, air freshener and pesticides insecticide spray.

Polyurethane Foam Sealants: Precision in Construction
Technical Advancements Showcased at the Fair
Polyurethane foam sealants (OCF) remain a cornerstone of modern construction due to their versatility. Key innovations highlighted at the fair include:
- Rapid Curing Formulas: Enhanced moisture-reactive foams that solidify within 7–13 minutes, ideal for humid climates.
- Eco-Friendly Formulations: Low-VOC options compliant with China’s JC936-2004 standards, ensuring compressive strength >30 kPa and thermal conductivity <0.035 W/mK27.
- UV-Resistant Coatings: Solutions to prevent yellowing under sunlight, paired with fire-retardant additives for safer infrastructure.
Applications and Case Studies
- Sealing & Insulation: Used in window installations and HVAC systems for airtight insulation.
- Explore Donyan Chemical’s high-performance polyurethane foam for industrial-grade solutions.
Butane Gas: The Unsung Hero of Aerosol Technology
Role in Propellant Systems
Butane gas is critical for aerosol products like foam sealants and insecticides. At the fair, suppliers emphasized:
- Purity Standards: >95% refined butane for consistent pressure in spray cans.
- Safety Protocols: Leak-proof canister designs and temperature-stable storage guidelines (+5°C to +40°C).
Sustainability Trends
- Recyclable Canisters: Partnerships with manufacturers to reduce carbon footprints.
- Hybrid Propellants: Blends with propane for lower environmental impact.
Donyan Chemical’s butane gas meets ISO 9001-certified production standards.

Air Fresheners and Insecticide Sprays: Merging Efficacy with Safety
Next-Gen Air Fresheners
- Natural Formulations: Essential oil-based products free from phthalates.
Insecticide Innovations
- Targeted Action: Nanoparticle technology for prolonged residual efficacy.
- Eco-Certifications: Safe for household use.
- For eco-conscious options, explore Donyan’s air fresheners and insecticide sprays.

Explore Donyan’s Full Product Line: