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.
Physical and thermal
- Density (23 °C)
- 1.5 g/cm³
Product Information
- Tensile Strength
- approx. 2.5 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. 200%
Physical Properties
- Density
- 1.48 g/cm³
- Hardness (Shore A)
- approx. 45
- Chemical group
- Silane-modified polymer
- Color
- black, white, grey
- Cured layer thickness after 24 hours
- approx. 2.5 mm
- Curing technology
- Moisture curing
Features
- Processing temperature
- +5 °C to +40 °C
- Stress at 100% elongation
- approx. 1.5 N/mm²
- Volume change
- ≤ 4%
- Number of components
- 1K
Product Description
Merbenit HT50 is a 1K-SMP adhesive with high initial tack and rapidly increasing strength — combining easy processing with rapid strength build-up, ISEGA-approved for food contact applications.
Silane-modified polymers (SMPs) are modern, high-performance adhesives—moisture-curing, solvent-, isocyanate-, and silicone-free, with a very broad adhesion spectrum to metals, painted and galvanized surfaces, engineering plastics, glass, ceramics, concrete, stone, and wood. They are paintable, corrosion-resistant, shock- and vibration-resistant, and low-odor. HT50 is a specific variant of the Merbenit SMP series—its key properties and applications are described below.
Merbenit HT50 combines easy processing with high initial adhesion and rapidly increasing strength. Bonded parts can be transported after a short time, and fixings can be removed quickly. ISEGA-approved for food contact areas, with eco-bau ECO-BKP 1st priority, EMICODE EC1Plus and Eurofins IAC Gold.
What makes HT50 stand out
What is HT50 used for?
Processing
Recommended accessories
HT50 compared to related Merbenit products
Direct comparison of mechanical and processing values — all data from the official Merbenit TDS.
HT50 Current Product |
HM21 → | SF50 → | SK212 → | |
|---|---|---|---|---|
| Crosslinking system | 1K moisture-curing | 1K moisture-curing | 1K moisture-curing | 1K moisture-curing |
| Consistency | non-sag | Non-sagging, ≤3 mm | non-sag | non-sag |
| Shore A hardness | A 45 | A 45 | A 50 | A 55 |
| Tensile Strength | 2.5 N/mm² | 2.5 N/mm² | 3.4 N/mm² | 2.8 N/mm² |
| Elongation at break | 200 % | 350 % | 200 % | 225 % |
| Modulus 100% | 1.5 N/mm² | 1.6 N/mm² | 2.2 N/mm² | 2.0 N/mm² |
| Processing time | 10 min | 30 min | 8 min | 15 min |
| Through-curing 24 h | 2.5 mm | ≥3.0 mm | ≥3.5 mm | 3.5 mm |
| Through-cure 48 h | 4.0 mm | ≥4.0 mm | ≥4.5 mm | 4.5 mm |
| Density | 1.48 | 1.52 | 1.40 | 1.35 |
| Temperature range | –40 / +90 °C | –40 / +90 °C | –40 / +90 °C | –40 / +90 °C |
| Volume change | ≤4 % | ≤5 % | ≤7 % | ≤3 % |
| Main application | Immediate-bonding applications | Metal construction | Minergie-ECO construction projects | Windshield replacement |
Frequently asked questions about HT50
Practical application and design questions — answered by SILITECH.
Merbenit HT50: 1K SMP adhesive with high initial tack and rapid strength development — combines easy processing with fast strength build-up, ISEGA-approved for food contact applications. Main applications: Immediate tack bonding, elevator construction, passenger bridges.
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.
HT50 adheres to metals (aluminum, stainless steel, steel), powder-coated and painted surfaces, galvanized/anodized/chromated/zinc-coated substrates, many plastics, ceramics, stone, concrete, crepi, wood, and glass. Not suitable for: PP, PE, PTFE (Teflon), silicones, and bitumen substrates. For critical material pairings, we recommend a preliminary test or application with 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).