Silicones, silicone oils, sprays
Casting and potting resins)
HS Code:
3214.1000
Technical Data
Typical values, not a specification. The technical data sheet (TDS) is binding.
Product Information
- Tensile Strength
- approx. 3.1 N/mm²
- Temperature range (°C)
- -40 °C to +90 °C
- Container
- 290ml cartridge, 600ml bag
- Consistency
- Non-slumping
Performance at Full Cure
- Elongation at break
- approx. 300%
Physical Properties
- Density
- 1.53 g/cm³
- Hardness (Shore A)
- 55
- Chemical group
- Silane-modified polymer
- Color
- black, white, grey
- Cured layer thickness after 24 hours
- ≥ 2.0 mm
- Curing technology
- Moisture curing
Features
- Processing temperature
- +5 °C to +40 °C
- Stress at 100% elongation
- approx. 1.8 N/mm²
- Volume change
- ≤ 6%
- Number of components
- 1K
Product Description
Merbenit MB55 is a maritime 1K-SMP adhesive with IMO-FTPC Parts 2+5 certification — Shore A 55, high strength, weather-resistant for shipbuilding and maritime applications.
Silane-modified polymers (SMP) are modern high-performance adhesives — moisture-curing, solvent-free, isocyanate-free, and silicone-free, with a very broad adhesion spectrum on metals, painted and galvanized surfaces, engineering plastics, glass, ceramics, concrete, stone, and wood. Paint-compatible, corrosion-protective, shock- and vibration-resistant, low-odor. MB55 is a specific variant of the Merbenit SMP series — the key properties and application areas are provided below.
Merbenit MB55 is tailored for maritime applications and meets the requirements of the International Maritime Organization (IMO) according to FTPC Parts 2+5. High strength (Shore A 55), 300% elongation at break, resistant up to +200 °C for short periods (powder and thermal coating).
What sets MB55 apart
What is MB55 used for?
Processing
Recommended accessories
MB55 compared with related Merbenit products
Direct comparison of mechanical and processing values — all data from the official Merbenit TDS.
MB55 Current Product |
PC200 → | HS60 → | RV55 → | |
|---|---|---|---|---|
| Crosslinking system | 1K moisture-curing | 1K moisture-curing | 1K moisture-curing | 1K moisture-curing |
| Consistency | non-sag | non-sag | non-sag | see TDS |
| Shore A hardness | A 55 | A 57 | A 60 | A 58 |
| Tensile Strength | 3.1 N/mm² | 3.7 N/mm² | 3.3 N/mm² | 3.0 N/mm² |
| Elongation at break | 300 % | 200 % | 250 % | 170 % |
| Modulus 100% | 1.8 N/mm² | 2.3 N/mm² | 2.3 N/mm² | 2.6 N/mm² |
| Processing time | 10 min | 8 min | 10 min | 30 min |
| Through-curing 24 h | ≥2.0 mm | ≥2.5 mm | ≥2.0 mm | ≥2.0 mm |
| Through-cure 48 h | ≥4.0 mm | ≥3.5 mm | ≥3.0 mm | ≥3.5 mm |
| Density | 1.53 | 1.50 | 1.54 | 1.52 |
| Temperature range | –40 / +90 °C | –40 / +90 °C (briefly +240 °C) | –40 / +90 °C | –40 / +90 °C |
| Volume change | ≤6 % | ≤4 % | ≤8 % | ≤3 % |
| Main application | Shipbuilding | Powder coating front-end bonding | Food industry | Rail vehicle interior bonding HL3 |
Frequently asked questions about MB55
Practical application and design questions — answered by SILITECH.
Merbenit MB55: Maritime 1K-SMP adhesive with IMO-FTPC-Parts-2+5 certification — Shore A 55, high strength, weather-resistant for shipbuilding and maritime applications. Main applications: shipbuilding, sandwich components + lightweight construction, ship cladding.
SMP = Silane-modified polymer. This modern adhesive class combines the advantages of silicone (elasticity, weather resistance, broad adhesion spectrum) and polyurethane (mechanical strength, paint compatibility) — without their disadvantages (silicone: not paintable, corrosion on some metals; PU: isocyanates, often problematic indoors). SMP adhesives are solvent-free, isocyanate-free, and silicone-free, paint-compatible, corrosion-protective, and adhere without primer to most substrates — except PE, PP, PTFE, and silicones.
MB55 adheres to metals (aluminum, stainless steel, steel), powder-coated and painted surfaces, galvanized/anodized/chromated/zinc-coated substrates, many plastics, ceramics, stone, concrete, render, wood, and glass. Not suitable for: PP, PE, PTFE (Teflon), silicones, and bituminous substrates. For critical material combinations, we recommend a preliminary test or the use of a primer (V40 for smooth, V21 for porous substrates).
Store in unopened original container in a dry, cool place — typically between +5 and +30 °C. Consult the safety data sheet (SDS) before use. Observe the expiry date on the packaging. Process opened cartridges promptly — skin formation in the nozzle will block further application.
In the comparison table above, you will find related Merbenit products with different properties — different hardness, pot life, elongation at break, or special certifications (IMO, EN 45545-2, FMVSS 212, ISEGA, Minergie-ECO). If you are unsure about the optimal choice, we will be happy to advise you — contact SILITECH with your specific application (substrate pairing, desired hardness, processing workflow, certification requirement).