3M™ Hybrid Sealant Adhesive
The 3M 700 Series of hybrid adhesives and sealants embodies Silane-Modified Polymer (SMP/MS) technology designed for modern industry. Being completely isocyanate-free and having extremely low VOC emissions, these single-component sealants cure rapidly on contact with ambient moisture, forming permanently elastic bonds with high resistance to UV radiation and weathering.
Detailed Applications
3M™ 730 UV Hybrid Adhesive Sealant (Clear Formula)
Description and Uses: This is the aesthetic solution in the range. Its completely clear/transparent finish is designed for invisible seals where the appearance of the joint is critical.
- Laminating of transparent panels, polished metals, methacrylate or glass for signage and displays.
- Partitions, counters and industrial furniture where the seal line must not be visible.
- Decorative architectural panels and interiors for specialised vehicles.
3M™ 740 UV Hybrid Sealant Adhesive (Flexibility)
Description and Uses: A medium-modulus, multi-purpose elastic sealant with excellent performance in outdoor applications.
- Sealing expansion joints in vehicle bodies (buses, railway carriages, trailers and lorries).
- External cladding in aluminium, fibreglass (FRP) and timber panels.
- Underbody protection and seams in the automotive industry.
3M™ 760 UV Hybrid Sealant Adhesive (High Strength)
Description and Uses: This is the version with the highest hardness and mechanical toughness in the hybrid range. It offers maximum structural grip strength combined with the elasticity required to absorb intense vibrations.
- Bonding of structural components and insignia in nautical and marine applications (suitable for use both above and below the waterline).
- Joints subjected to dynamic mechanical loads in commercial vehicles and public transport vehicles.
- Structural assembly of composite panels with metals without the need for auxiliary mechanical fastenings.
Comparison Table
| 730 | 740 | 760 | |
| Basic chemistry | Modified Polymer (SMP) | Modified Polymer (SMP) | Modified Polymer (SMP) |
| Hardness (Shore A) | ~30 Shore A | ~30 – 35 Shore A | ~55 Shore A |
| Tack-Free Time | 40 – 60 min | 50 min (±10 min) | 10 – 25 min |
| Rate of Cure | >3.5 mm / 24 hrs | 3 mm / 24 hrs | 3 mm / 24 hrs |
| Colours | Transparent | White and grey | White, grey and black |
| Painted | Yes (Immediately) | Yes | Yes (Immediately) |
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