Item Name: TEROSON® RB 3221 AA-25
Manufacturer: Henkel
Technologies: Rubber
Color: Black
Cure Type: Heat curing (≥160–175°C)
Package Size: Contact to Techniq VN for details.
Shelf Life: 6 months
TEROSON® RB 3221 AA-25 is a solvent-free, one-component antiflutter adhesive based on rubber technology. It cures through heat above 140 °C, creating a flexible, foamy structure that maintains elasticity across a wide temperature range. The product offers strong adhesion to oily substrates including aluminum alloys and zinc-coated steel, with excellent sag resistance and wash-off stability. After curing, it is paintable and provides reliable corrosion protection in automotive body assembly.
The adhesive is designed for automotive body shops, where it functions as a stiff antiflutter bonding material for components such as engine hoods and trunk lids. It is particularly suited for cases requiring wash-off resistance without pregelling and where high elasticity must be retained across varying temperatures. It is typically applied using high-pressure pumping systems and automated equipment, ensuring uniform bonding under production conditions.
| Property | Unmixed | Mixed (if applicable) |
|---|---|---|
| Colour | Black | N/A |
| Density | ~1.45 g/cm³ | N/A |
| Consistency | Pasty | N/A |
| Solids | > 98 % | N/A |
| Viscosity (DIN 54458, 45 °C) | 550 Pa·s | N/A |
| Sag Resistance (3 mm bead, 23 °C/200 °C, 30 min) | No sagging | N/A |
| Expansion Rate (Cured, 25 min at 175 °C) | ~20 % | N/A |
| Shear Strength (DIN EN 1465, HDG/EGS, 2 mm layer) | ~1.4 MPa | N/A |
| Shore A Hardness (DIN 53505) | ~55 | N/A |
| Temperature Resistance (short-term) | Up to 200 °C | N/A |
| In-service Temperature Range | -40 to +90 °C | N/A |
| Storage Temp. | 5 – 25 °C | N/A |
| Shelf Life | 6 months | N/A |
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Techniq Vietnam provides end-to-end materials and process solutions, integrating world-class technologies in adhesives, soldering, and thermal management.
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