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Merbenit RV55

Merbenit RV55

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Merbenit RV55 is an elastic, sealing adhesive with high strength.

Flame-retardant 1K-SMP adhesive for rail vehicle construction — EN 45545-2 Hazard Level HL3 (highest level), approved for all operating classes 1–4 incl. tunnel vehicles

Price on request

  • Tensile Strength
  • Temperature range (°C)
  • Container
  • Elongation at break
  • Density
  • Hardness (Shore A)
  • Chemical group
  • Color
  • Cured layer thickness after 24 hours
  • Curing technology
  • Processing temperature
  • Stress at 100% elongation
  • Volume change
  • Number of components

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MS Polymer Universal Automatic dosing General industry and manufacturing Construction Metal Plastic Low odor Solvent-free Silicone-free Isocyanate-free Vehicle construction Elastic Merbenit Accessories spray guns Sealant Mechanical engineering

 
General Terms and Conditions

Shipping usually within 1 to 3 business days
(Availability confirmed after order)

Express logistics. Fast and reliable within Switzerland & Europe

From Swiss stock Dispatch within 24h Batch certificate Invoice 30 days (B2B) Technical advice
Shipping & Delivery

Usually 1 to 3 business days

Availability is confirmed after order receipt.

Express logistics within Switzerland & Europe.

Terms and Conditions →

Product data

HS Code: 3214.1000

HS Code: 3214.1000

Merbenit RV55
Merbenit RV55
Merbenit ·

Merbenit RV55 is a flame-retardant 1K-SMP adhesive for rail vehicle construction — EN 45545-2 Hazard Level HL3 (highest level), approved for all operating classes 1–4 including tunnel vehicles.

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. RV55 is a specific variant of the Merbenit SMP series — the key properties and applications are listed below.

EN 45545-2 HL3 — highest hazard level

Merbenit RV55 meets the highest hazard level HL3 according to EN 45545-2 (requirement sets R22+R23) — approved for all operating classes 1 to 4, including tunnel vehicles without evacuation possibility. High strength (Shore A 58), resistant to +200 °C for short periods, halogen-free, and very low emission.

RV55 in figures
EN 45545-2
HL3
Shore A 58
High strength
170 %
Elongation at break
Classes 1–4
Tunnel

What sets RV55 apart

EN 45545-2 HL3 — highest level
R22+R23 — oxygen index, smoke density, and toxicity at the highest level.
All operating classes 1–4 approved
Also for tunnel vehicles without evacuation options.
High strength (Shore A 58)
Structural bonding with high mechanical strength.
Powder/thermal coating +200 °C
Resistant to high temperatures for short periods.
Free from solvents, isocyanates, silicones, phthalates, and tin
Safe in processing and at the workplace.
Exempt from labeling requirements
No GHS labeling.

What is RV55 used for?

Rail vehicle interior bonding HL3
Highest fire protection requirement in railway interiors.
Rail vehicle exterior bonding HL3
Structural bonding with the highest fire protection level.
Tunnel vehicles
High-load fire protection applications in tunnel vehicles.
Sandwich panels in web form
Structural bonding of sandwich components.
High-load railway components
Doors, glazing, ceilings, wall components.
Rail maintenance
Repair with the highest fire safety compliance.
Data Sheets & Safety Data Sheet
TDS and SDS in multiple languages — view or download directly.
To the documents →

Processing

1
Clean substrate
Degrease and dry web substrates — aluminum, painted steel, composite, or plastics.
2
Apply primer
EN-45545-2-compliant bonding always requires Primer V40 (smooth) or V21 (absorbent) for reproducible values.
3
Insert cartridge
Standard cartridge gun or bulk system for large-area railway bonding applications.
4
Application
Uniform bead or sandwich component bonding — pot life 15–30 min.
5
Joining + Fixing
Join with defined contact pressure — fix rail vehicle components until initial curing.
6
Curing + fire protection testing
48 h full curing. EN 45545-2 HL1/HL2/HL3 conformity achieved after full curing.

Recommended accessories

Merbenit RV30
Rail vehicle sealant EN 45545-2 HL1+HL2 — flame-retardant, halogen-free.
To the product →
Merbenit HS60
High-modulus 1K-SMP (Shore A 60) with ISEGA + RLT VDI 6022 — highest strength in the series.
To the product →
Merbenit PC200
High-temperature 1K-SMP — resistant up to +240 °C for short periods, ideal for powder-coat pre-bonding.
To the product →

RV55 in comparison with related Merbenit products

Direct comparison of mechanical and processing values — all data from the official Merbenit TDS.

RV55
Current Product		 RV30 →HS60 →MB55 →
Crosslinking system1K moisture-curing1K moisture-curing1K moisture-curing1K moisture-curing
Consistencysee TDSsee TDSnon-sagnon-sag
Shore A hardnessA 58A 26A 60A 55
Tensile Strength3.0 N/mm²1.5 N/mm²3.3 N/mm²3.1 N/mm²
Elongation at break170 %225 %250 %300 %
Modulus 100%2.6 N/mm²0.9 N/mm²2.3 N/mm²1.8 N/mm²
Processing time30 min15 min10 min10 min
Through-curing 24 h≥2.0 mm2.0 mm≥2.0 mm≥2.0 mm
Through-cure 48 h≥3.5 mm3.0 mm≥3.0 mm≥4.0 mm
Density1.521.471.541.53
Temperature range–40 / +90 °C–40 / +90 °C–40 / +90 °C–40 / +90 °C
Volume change≤3 %≤3 %≤8 %≤6 %
Main applicationRail vehicle interior bonding HL3Rail vehicle exterior sealsFood industryShipbuilding
Topics & Application Fields
Key terms related to this product. Also useful for our search and filters.
MS Polymer Universal Automatic dosing General industry and manufacturing Construction Metal Plastic Low odor Solvent-free Silicone-free Isocyanate-free Vehicle construction Elastic Merbenit Accessories spray guns Sealant Mechanical engineering

Technical data for Merbenit RV55

All 14 Product information 3 Performance at final strength 1 Physical properties 6 General 4
Product Information
Tensile Strength approx. 3.0 N/mm²
Temperature range (°C) -40 °C to +90 °C
Container 290ml cartridge
Performance at Full Cure
Elongation at break approx. 170%
Physical Properties
Density 1.52 g/cm³
Hardness (Shore A) 58
Chemical group Silane-modified polymer
Color black, white, light grey
Cured layer thickness after 24 hours ≥ 2.0 mm
Curing technology Moisture curing
General
Processing temperature +5 °C to +40 °C
Stress at 100% elongation approx. 2.6 N/mm²
Volume change ≤ 3%
Number of components 1K

Please refer to the technical data sheet (TDS) in the "Documents" tab for binding values.

Documents and data sheets

Click on a document for the preview or the download icon for direct download.

Technical Data Sheets (TDS) 1
Merbenit RV55 - Fiche Technique FR.pdf
89 KB
Safety Data Sheets (SDS) 1
Merbenit RV55 - Safety Data Sheet DE.pdf
89 KB

Frequently asked questions about RV55

Practical application and design questions — answered by SILITECH.

Merbenit RV55: Flame-retardant 1K-SMP adhesive for rail vehicle construction — EN 45545-2 Hazard Level HL3 (highest level), approved for all operating classes 1–4 incl. tunnel vehicles. Main applications: interior bonding for rail vehicles HL3, exterior bonding for rail vehicles HL3, tunnel vehicles.

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.

RV55 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 pairings, we recommend a preliminary test or the use of a primer (V40 for smooth, V21 for absorbent 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).

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Product Specifications

Product Information
Tensile Strength approx. 3.0 N/mm²
Temperature range (°C) -40 °C to +90 °C
Container 290ml cartridge
Performance at Full Cure
Elongation at break approx. 170%
Physical Properties
Color black or white or light grey
Density 1.52 g/cm³
Hardness (Shore A) 58
Chemical group Silane-modified polymer
Cured layer thickness after 24 hours ≥ 2.0 mm
Curing technology Moisture curing
Uncategorized
Processing temperature +5 °C to +40 °C
Stress at 100% elongation approx. 2.6 N/mm²
Volume change ≤ 3%
Number of components 1K
Keywords
Keywords
MS Polymer Universal Automatic dosing General industry and manufacturing Construction Metal Plastic Low odor Solvent-free Silicone-free Isocyanate-free Vehicle construction Elastic Merbenit Accessories spray guns Sealant Mechanical engineering

Documents and data sheets

Safety Data Sheets (SDS) and Technical Data Sheets (TDS) for download: