What is a Honeycomb Adhesive?
Honeycomb adhesive is a high-performance bonding material used for attaching honeycomb cores to facing materials (skins) to form lightweight, yet strong, sandwich panels. These panels are commonly utilized in industries like aerospace, automotive, marine, and construction due to their excellent strength-to-weight ratio, stiffness, and durability.
Why use Polyurethane Adhesive for Honeycomb / Rockwool to panel bonding?
- Are you facing challenges bonding honeycomb panels securely, especially when working with multiple materials like aluminum, composite, and plastic?
- Weak adhesives can lead to material failures, inefficiencies, and added costs. Environmental stresses like moisture and temperature changes can compromise the bond, putting your projects and reputation at risk.”
- Our polyurethane honeycomb bonding adhesive is the perfect solution for strong, durable, and multi-surface bonding. Engineered to withstand stress, vibrations, and environmental factors, it delivers fast curing, reliable performance, and long-lasting results, ensuring your project’s success.
Advantages of Honeycomb Adhesive
- High bonding strength with minimal weight.
- Excellent durability in challenging environments.
- Customizable to meet specific application needs (e.g., fire resistance, flexibility).
What is Rockwool Adhesive?
Rockwool adhesive is a bonding material used for securing Rockwool insulation panels to various surfaces, such as walls, ceilings, and facades. Rockwool (stone wool) is a popular insulation material known for its excellent fire resistance, soundproofing, and thermal insulation properties. The adhesive plays a crucial role in ensuring the insulation remains securely attached, even in challenging conditions.
Applications of Rockwool Adhesive
- Building Insulation:
- Fixing Rockwool boards on external walls in ETICS (External Thermal Insulation Composite Systems).
- Industrial Use:
- Attaching Rockwool slabs in HVAC systems, boilers, and pipelines.
- Soundproofing:
- Bonding acoustic Rockwool panels to ceilings and walls.
Key Features of Rockwool Adhesive
- High Bond Strength: Designed to hold heavy Rockwool panels.
- Fire Resistance: Matches the non-combustible properties of Rockwool.
- Flexibility: Accommodates minor substrate movements without cracking.
- Thermal Compatibility: Resistant to temperature fluctuations.
- Moisture Resistance: Prevents weakening in humid environments.
Polyurethane Honeycomb Adhesive Supex 7221
Polyurethane adhesive Supex 7221 is a solvent-free formulation . At room temperature and required humidity, sufficient strength will be obtained after approximately 10 to 15 minutes. It is cured in a heated press for faster curing.
Uses of PU honeycomb/Rockwool adhesive
Used for the manufacture of sandwich elements with porous surfaces (e.g. wood) which contain humidity. The surfaces can be bonded to one another or to metals, laminated panels, various plastics, rigid foams made of polystyrene, polyurethane as well as others.
It can bond Honeycomb, Thermocol, Wood, Sheet metal, panels, Rockwool, Ceramic wool , Foam etc.
PROPERTIES SUPEX 7221 Honeycomb/Rockwool/ Thermocol glue
- APPEARANCE Light viscous liquid
- COLOUR Straw to Brown
- ODOUR Slight odour Characteristic Musty (moulds).
- SOLUBILITY Insoluble in water reacts with water, Soluble in aromatic solvents
- S.G 1.1
- BOILING POINT (°C) >300
- VISCOSITY 3000-5000 cps 25°C
- FLASH POINT (°C) >200 (Closed cup)
- STORAGE STABILITY 8months
How to use rockwool adhesive Supex 7221
Application Temperature : 10 to 35 °C.
Supex 7221, one part polyurethane adhesive is applied to the surface by spatula or doctor blade. One can also apply by spraying or rolls. In case of bonding surfaces without sufficient humidity or which are not moisture permeable the required amount of moisture is provided by other methods. Moreover, a proven procedure is the combined spraying of the adhesive at the same time with water in a fine mist. Water is never sprayed onto the bare metal in the case of separate adhesive and water mist application. However, it is sprayed on the
other substrate or ideally on the adhesive. Bonding surfaces should be brought together immediately after adhesive application. This assures sufficient contact pressure while curing although preferably in a press.
Since Supex 7221 cures by reaction with humidity, open containers must always be properly sealed and protected against moisture immediately after taking out the quantity needed. For the same reason we recommend to use up opened containers as soon as possible.
APPLICATION :
- Material/ substrates to be bonded should be grease, dust and dirt free.
- Press the panel in the press at the minimum load 0.6 N/square mm for 30 min for 70°C .
- period of between 1 to 4 hours will be required for good bonding dependent on the temperature and the nature of the materials to be bonded. Post curing it is ready for any kind of coating.
- should not be applied to wet surfaces (i.e. surfaces where there are visible signs of moisture such as obviously damp patches). This product requires water misting which results in a faster full cure.
COVERAGE: The usage rate of the material will be very dependent on the nature and porosity of the surfaces to be bonded. Good bonds can be achieved at a thickness between 500 to 1000 microns. When used on non-porous/plain substrates coverage will be 2-3m²/kg.
Cleaning: Fresh, uncured material (cleaning application equipment, substrate contamination etc.) can be removed with Supex cleaner; cured adhesive can only be removed mechanically.
Packaging: 18 Litres Tin
What is PUR Adhesive Technology?
Liquid PUR (Polyurethane) adhesives , Eg: Supex 7221, are reactive moisture curing adhesives known for Strong Bonds and Exceptional Heat, Cold and Moisture-Resistance; this makes liquid PUR adhesive an excellent choice for most difficult to bond, low energy substrates and they perform very well in extreme weather environments.
PUR adhesive forms very strong permanent bonds to most materials including: Solid Woods, MDF/Particle Board, Metal, Paper, Glass, Wooden Veneer, Clear Plastic Boxes, Plastics, PVC, Foils.
The primary advantages of using PUR adhesive include:
- reduced cost of the adhesives, on a /Kg. basis.
- NO HAP’s or VOC’s, 100% Solvent Free.
- The elimination of a plant explosion risk; lower insurance costs.
- No more need for air pollution control devices.
- The removal of dryers in the production line
Honeycomb/ Rockwool adhesive - Call us for Samples/ Demo/ Technical queries
Ready to ensure secure, durable, and efficient installation of your Rockwool insulation? Choose the right adhesive today for unmatched performance in thermal insulation, soundproofing, and fire resistance!
✅ Achieve Long-Lasting Results
✅ Save Installation Time
✅ Boost Insulation Efficiency
Don’t settle for less—contact us now for expert advice or to place your order for premium Rockwool adhesives!
📞 Call us at [91 9699892782]
📧 Email: [sales@supex.in]
Let’s make your next project rock-solid! 💪
