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PERMABOND ET5428 black

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Permabond ET5428 black — Epoxy structural adhesive, Shore D 56-75.

Highest steel shear strength of the ET series (28–34 N/mm²) — black pigmented.

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  • Color (A)
  • Viscosity 20rpm (A)
  • Viscosity 2rpm (A)
  • Specific gravity (A)
  • Chemical group (B)
  • Color (B)
  • Viscosity 20rpm (B)
  • Viscosity 2rpm (B)
  • Specific gravity (B)
  • Country of origin
  • Operating temperature (°C)
  • Mixing ratio
  • Viscosity (adhesives)
  • Hardness (Shore D)
  • Storage temperature (°C)
  • Maximum gap width (mm)
  • Drip time at 23°C
  • Functional strength
  • Functional stability at 60°C
  • Final strength at 60°C
  • Peel resistance (aluminum) (ISO 4578)
  • UFI Part A
  • UFI Part B
  • TG value
  • Dielectric strength
  • Steel
  • Glass/Polyester
  • Glass/epoxy
  • CFRP

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Carbon fiber composites

 
General Terms and Conditions.

Shipping usually within 1 to 3 business days
(availability will be confirmed after ordering)

. Express logistics. Fast and reliable within Switzerland & Europe.

Shipping from Swiss warehouse within 24 hours. Batch certificate. Invoice within 30 days (B2B). Technical support.
Shipping & Delivery

Usually 1 to 3 working days

Availability will be confirmed after order receipt.

Express logistics within Switzerland & Europe.

General Terms and Conditions →

Product data

Internal reference: 49-5428.KT.G050

HS code: 3506.9190000

Internal reference: 49-5428.KT.G050
HS code: 3506.9190000

PERMABOND ET5428 black
PERMABOND ET5428 black
Permabond · Permabond Engineering Adhesives Ltd · SKU 49-5428.KT.G050

Permabond ET5428 black is the strongest variant in the ET series — up to 34 N/mm² steel shear strength combined with black curing and fast pot life.

With a steel shear strength of 28–34 N/mm², ET5428 black is the strongest variant in the Permabond ET range — a premium choice for the most demanding structural bonding applications. Its black cure makes the product visually unobtrusive on dark substrates.

PREMIUM STRENGTH

Highest steel shear strength of the ET series (28–34 N/mm²) in black curing — the premium choice for highly stressed structural bonding applications with aesthetic requirements or dark substrates.

Permabond ET5428 black in figures
28–34
N/mm² steel
Black
Pigmented
10–20 min
Potting time
2:1
mixture

What distinguishes Permabond ET5428 black

Highest steel strength
28–34 N/mm² — peak value of the ET series.
black pigmented
Visually inconspicuous on dark substrates.
Fast potting time
10–20 minutes for clocked production.
2:1 mixing ratio
Standard double cartridge.
Full curing at room temperature
No heat curing.
structural adhesive
Premium industrial applications.

What is Permabond ET5428 black used for?

High-stress structural bonding
When standard epoxides are insufficient.
Visible adhesive bonds on dark substrates
Blackening.
Heavy industry bonding
Mechanical engineering, plant engineering, and apparatus construction.
Composite high-strength adhesive
CFRP/GFRP with maximum strength.
Premium industrial adhesive
A competitor to Loctite Premium.

processing

1
Clean surfaces
Bonding surfaces must be clean, dry, and free of grease. Degrease with Permabond Cleaner A or a solvent (acetone, isopropanol). Lightly sand aluminum and copper to remove oxide layers.
2
Mix components A + B
For dual cartridges: Attach the mixing nozzle and press evenly (2:1 volume mixing ratio). For larger containers: Weigh out the resin and hardener in the correct ratio and mix thoroughly until no streaks are visible. Avoid air bubbles.
3
Apply adhesive + join components
Apply the mixed adhesive to a bonding surface within the pot life (10–20 minutes @ 23 °C). Join the components with sufficient pressure to ensure the adhesive is distributed over the entire bonding surface.
4
Fix components in place during curing
Use a clamping device or vise to prevent the components from moving during curing. Wait for handling strength and functional strength to be determined according to the TDS (Technical Data Sheet).
5
Full curing at room temperature
Final strength is typically reached after 24 hours at 23 °C. Increasing the temperature by 8 °C halves the curing time; lower temperatures slow down the process. If required, optional post-curing at 60–80 °C for maximum strength.
Data sheets & safety data sheet
Full TDS and SDS in DE, EN, FR — view or download directly.
To the documents →

Recommended accessories

SILISIL Adhesive Dispensing Gun 50 ml
Manual dispensing gun for 50 ml twin cartridges with 1:1 and 2:1 mixing ratios — precise dispensing without waste for multi-component adhesives.
View product →
Permabond Cleaner A Aerosol
Spray cleaner for quickly degreasing the bonding surfaces before applying the 2K epoxy.
View product →
Permabond ET515 — aerospace star
Highly flexible 1:1 epoxy for aircraft seat trays and composite structural bonding — Permabond recommended for aerospace.
View product →
Permabond ET5162 — Food
EU 10/2011 + FDA compliant for direct food contact — the premium choice for food processing.
View product →
Permabond ET5441 — Thermally conductive
UL94-V0 + 1.0–1.4 W/(m·K) thermal conductivity — for heat sinks, batteries and power electronics.
View product →

Important instructions

Important instructions
Before bonding, degrease surfaces and, if necessary, sand them. Remove oxide layers from aluminum/copper surfaces.
storage
Store at 5 to 25 °C. Keep 2K epoxy components in closed packaging — protect the hardener especially from moisture.

Which Permabond 2K epoxy is suitable for which application?

Permabond ET5428 black in direct comparison with related products of the ET series.

Permabond ET5428 black
Current product		Permabond ET5429 →Permabond ET5401 →Permabond ET536 →
Application / PropertyBlack high-strength structural adhesive 2:1 — Top shear strengthLower strengthLower strength1:1 mixture
Mixing ratio2:1 volume parts2:12:11:1
Potting time10–20 minutes @ 23 °C—10–12 min50–80 min
Steel shear strength28–34 N/mm²23–28 N/mm²20–30 N/mm²22–32 N/mm²
carbon fiber——22–24 N/mm²18–22 N/mm²
Topics & Application Areas
Key terms related to this product. Also useful for our search and filters.
Carbon fiber composites

Technical data for PERMABOND ET5428 black

All 33 product information 5 Curing speed (oven) 1 Physical properties A 6 Physical properties B 6 Performance at final strength 2 Bonding properties 1 Physical properties 1 Curing values ​​2 Mechanical properties 1 Shear strength ISO 4587 in N/mm² 4 Thermal properties 2 General 2
Product information
Manufacturer Permabond Engineering Adhesives Ltd
brand Permabond
Container 50 ml
Country of origin Italy
Mixing ratio 2:1
Curing speed (oven)
Final strength at 60°C 1 hour
Physical properties A
Chemical group (A) epoxy resin
Color (A) Black
Viscosity 20rpm (A) 80000-150000
Viscosity 2rpm (A) 200000-400000
Specific gravity (A) 1.1
UFI Part A 49G0-10AK-800G-EQWE
Physical properties B
Chemical group (B) Polyamine hardener
Color (B) Beige
Viscosity 20rpm (B) 100000-300000
Viscosity 2rpm (B) 700000-1500000
Specific gravity (B) 1.1
UFI Part B ADG0-J00Y-K000-22GG
Performance at final strength
Peel resistance (aluminum) (ISO 4578) 150-250 N/25mm
Dielectric strength 15-25 kV/mm
Properties of the adhesive
Functional strength 1 hour
Physical properties
Viscosity (adhesives) Thick paste
Curing values
Maximum gap width (mm) 0.15
Drip time at 23°C 10-20 minutes
Mechanical properties
Hardness (Shore D) 56-75
Shear strength ISO 4587 in N/mm²
Steel 18-22 N/mm²
Glass/Polyester 6-9 N/mm²
Glass/epoxy 24-28 N/mm²
CFRP 20-38 N/mm²
Thermal properties
Operating temperature (°C) -40 to +120
Storage temperature (°C) 5-25
Generally
Functional stability at 60°C 15 minutes
TG value +50-60°C

For binding values, please refer to the technical data sheet (TDS) in the "Documents" tab.

Documents and datasheets

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

Technical Data Sheets (TDS) 6
Permabond ET5428 black - Technical Data Sheet DE.pdf
481 KB
Permabond ET5428 black - Technical Data Sheet DE.pdf
334 KB
Permabond ET5428 black - Technical Data Sheet EN.pdf
479 KB
Permabond ET5428 black - Technical Data Sheet EN.pdf
328 KB
Permabond ET5428 black - Fiche Technique FR.pdf
432 KB
Permabond ET5428 black - Fiche Technique FR.pdf
296 KB
Safety Data Sheets (SDS) 3
Permabond ET5428 black - Safety Data Sheet DE.pdf
361 KB
Permabond ET5428 black - Safety Data Sheet EN.pdf
356 KB
Permabond ET5428 black - Fiche de Sécurité FR.pdf
360 KB

Frequently asked questions about Permabond ET5428 black

Practical application and design questions — answered by SILITECH.

Black high-strength structural adhesive 2:1 — up to 34 N/mm² steel, fast pot life. The 2-component epoxy is mixed in a 2:1 volume ratio and offers a pot life of 10–20 minutes @ 23 °C.

Mix both components in a 2:1 ratio by volume — using a mixing nozzle for dual cartridges, weigh precisely for larger containers. Apply within the pot life (10–20 minutes @ 23 °C) and join components. Full curing typically occurs after — at room temperature.

The pot life of Permabond ET5428 black is typically 10–20 minutes at 23 °C. Higher temperatures shorten, lower temperatures lengthen the pot life. Mixing quantities above approximately 100 g may gel more quickly due to an exothermic reaction.

Permabond ET5428 black bonds reliably to steel: 28–34 N/mm². For thermoplastic substrates, test compatibility before series production.

Permabond ET5428 black does not have specific industry-specific approvals such as EU 10/2011 (food), UL94 (fire protection), or Boeing/Airbus (aerospace). For general industrial applications, the product is approved according to Permabond standards.

Permabond ET5428 black is a black high-strength structural adhesive 2:1 — peak shear strength (28–34 N/mm²) (2:1 volume mix, 10–20 minutes @ 23 °C pot life). Permabond ET5429 is a high-strength 2:1 (2:1, — pot life) — lower strength.

From the Permabond 2K epoxy range, select according to application, mixing ratio, and strength requirements: Permabond ET5428 black (Black high-strength structural adhesive 2:1 — top shear strength); Permabond ET5429 (High strength 2:1); Permabond ET5401 (Fast 2:1); Permabond ET536 (High strength 1:1). For aerospace applications, see ET515 (Aircraft Seat Trays), for food applications ET5162 (EU 10/2011 + FDA), for thermal conductivity/fire protection ET5441 (UL94-V0).

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Product specifications

Product information
Manufacturer Permabond Engineering Adhesives Ltd
brand Permabond
Container 50 ml
Country of origin Italy
Mixing ratio 2:1
Curing speed (oven)
Final strength at 60°C 1 hour
Physical properties A
Chemical group (A) epoxy resin
Color (A) Black
Viscosity 20rpm (A) 80000-150000
Viscosity 2rpm (A) 200000-400000
Specific gravity (A) 1.1
UFI Part A 49G0-10AK-800G-EQWE
Physical properties B
Chemical group (B) Polyamine hardener
Color (B) Beige
Viscosity 20rpm (B) 100000-300000
Viscosity 2rpm (B) 700000-1500000
Specific gravity (B) 1.1
UFI Part B ADG0-J00Y-K000-22GG
Performance at final strength
Peel resistance (aluminum) (ISO 4578) 150-250 N/25mm
Dielectric strength 15-25 kV/mm
Properties of the adhesive
Functional strength 1 hour
Physical properties
Viscosity (adhesives) Thick paste
Curing values
Maximum gap width (mm) 0.15
Drip time at 23°C 10-20 minutes
Mechanical properties
Hardness (Shore D) 56-75
Shear strength ISO 4587 in N/mm²
Steel 18-22 N/mm²
Glass/Polyester 6-9 N/mm²
Glass/epoxy 24-28 N/mm²
CFRP 20-38 N/mm²
Thermal properties
Operating temperature (°C) -40 to +120
Storage temperature (°C) 5-25
Uncategorized
Functional stability at 60°C 15 minutes
TG value +50-60°C
Keywords
Keywords
Carbon fiber composites

Documents and datasheets

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