
Insulation
Insulation
End-to-end thermal and acoustic insulation solutions for HVAC, refrigeration, and building envelope applications — ArmaFlex closed-cell elastomeric rubber, AFICO fiberglass, and high-performance adhesives and coatings.

Products
As a trusted insulation solutions provider in Vietnam, APT Engineering delivers superior thermal and acoustic insulation for industrial, commercial, and residential projects. Our strength lies in supplying and installing custom insulation systems — from HVAC pipework and ductwork to refrigeration plant and building envelopes — that maximise energy efficiency, reduce environmental footprint, and meet international safety standards.
ArmaFlex Closed Cell Elastomeric Rubber Insulation
ArmaFlex's closed-cell structure makes it a highly reliable insulation product, preventing water vapour penetration without an additional vapour barrier in most applications. Manufactured from nitrile rubber and polyvinyl chloride (NBR/PVC) compounds, ArmaFlex offers flexibility, durability, and ease of installation.
- High moisture penetration resistance — closed-cell structure with µ > 7,000
- Low thermal conductivity for energy efficiency (λ = 0.033–0.040 W/mK)
- Prevents corrosion under insulation (CUI) on chilled-water and HVAC pipework
- Class B1/B2 fire classification (EN 13501-1), CFC/HCFC-free
- Service temperature range -200°C to +150°C; pipe sizes DN 15 – DN 300, sheet thickness 6 – 50 mm
AFICO Fiberglass Insulation
APT Engineering also supplies AFICO fiberglass insulation — manufactured from molten silica sand and recycled glass for enhanced thermal and acoustic performance in demanding environments.
- Non-flammable and safe for most applications
- Resistant to temperatures up to 450°C
- Moisture-resistant and UV-resistant
- Will not contribute to mould, mildew, or bacteria growth
- Energy efficient, cost-effective, and superior in sound insulation
Adhesives, Coatings & Sealants
We supply Pidilite (Fevicol) adhesives and coatings to ensure safe and lasting insulation installations.
- Excellent coverage with high bond strength
- Fungus-resistant and durable
- Non-flammable in wet conditions; fire-resistant when dry
- Solvent-free formulation that does not compromise insulation integrity
- Non-sag viscosity for overhead and vertical surface application
Applications
- HVAC Systems — reduce heat loss, eliminate condensation, maintain system efficiency
- Refrigeration & Cold Storage — enhanced temperature control and lower energy usage
- Industrial Plant — power plants, petrochemical facilities, and manufacturing requiring high-performance insulation
- Commercial Buildings — thermal comfort, acoustic insulation, and reduced energy bills
- Residential Projects — ideal temperatures and noise reduction for occupant comfort







Related Products
Partners




































































































