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PERMABOND TA439

PERMABOND TA439

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Permabond TA439 — tough-hard modified methacrylate adhesive.

MMA structural adhesive 10:1 — industrial version of the no-mix system.

Price on request

  • Brand
  • Manufacturer
  • UFI (Unique Formula Identifier)
  • Container
  • Chemical group
  • Color
  • Viscosity at 20 rpm
  • Viscosity (adhesives)
  • Specific Gravity
  • Mixing Ratio
  • Maximum gap filling capacity up to
  • Handling strength at 23°C
  • Functional Strength
  • Final strength
  • Steel
  • Zinc
  • Peel resistance (ISO 4578)
  • Tensile strength (ISO37)
  • Impact strength (ASTM D-950)
  • Coefficient of thermal expansion (ASTM D-696)
  • Thermal conductivity (ASTM C-177)
  • Dielectric constant (ASTM D-150)
  • Dielectric strength (ASTM D-149)
  • Volume resistivity (ASTM D-257)
  • Storage Temperature (°C)
  • Operating temperature (°C)

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Structurally acrylate ceramic metals no-mix PERMABOND magnets

 
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

Internal reference: 49-439.FL.ML050

Internal reference: 49-439.FL.ML050

PERMABOND TA439
PERMABOND TA439
Permabond · Permabond Engineering Adhesives Ltd · SKU 49-439.FL.ML050

Permabond TA439 is a 10:1 MMA structural adhesive — the industrial standard variant of the no-mix concept for high-stress bonding applications without aerospace requirements.

With a 10:1 mixing ratio, TA439 is structurally comparable to the aerospace TA4246 — the same no-mix logic with adhesive and initiator applied separately. It lacks Boeing/Airbus approvals, making it more cost-effective for purely industrial applications.

APPLICATION PROFILE

MMA structural adhesive in a 10:1 ratio — same no-mix approach as TA4246, without aerospace approval. The cost-effective all-round choice for industrial structural bonding.

Permabond TA439 in figures
20–25
N/mm² Steel
10:1
Mixing
MMA
Structural adhesive
All-round
Industry

What distinguishes Permabond TA439

MMA structural adhesive
Methacrylate chemistry.
10:1 mixing ratio
No-mix with initiator.
20–25 N/mm² steel
High-strength industrial bonding.
Curing at room temperature
No heat curing required.
Multi-Substrate
Metal, composite, plastic.
Industrial standard version
Cost-effective compared to TA4246.

What is Permabond TA439 used for?

Industrial structural bonding
If no aerospace certification is required.
Composite bonding
CFRP/GFRP in sports and vehicle construction.
Metal/plastic bonding
Multi-material application.
General structural assembly
Mechanical and plant engineering.
Cost-effective high-strength bonding
10:1 No-Mix Advantages.

Processing

1
Clean surfaces
Prepare bonding surfaces clean, dry, and free of grease — degrease with Permabond Cleaner A. Lightly sand aluminum and copper to remove the oxide layer.
2
Apply initiator to one bonding surface
Apply Permabond Initiator (46 for TA4246, 41 for TA435/TA437/TA436) thinly and evenly to one of the two bonding surfaces. Allow the initiator to flash off — surface life of up to 2 hours.
3
Apply adhesive to the opposite side
Apply Permabond TA439 to the UNTREATED bonding surface. Never mix adhesive and initiator directly — this will cause premature curing in the bottle.
4
Joining components
Fix and join the components immediately, at the latest within 2 hours after applying the initiator. Apply pressure — the adhesive spreads thinly and evenly.
5
Curing at room temperature
Handling strength typically after 2–10 minutes, functional strength after 15–30 minutes, final strength after 24 hours at 23 °C. Heat accelerates curing.
Data Sheets & Safety Data Sheet
Complete 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 dual cartridges with 1:1 and 2:1 mixing ratios — precise dispensing without waste for multi-component adhesives.
To the product →
Permabond Cleaner A Aerosol
Spray cleaner for preparing the bonding surfaces before applying the MMA structural adhesive.
To the product →
Permabond TA4246 — Aerospace Star
Boeing HMS 16-1226 + Airbus IP510-04-036-01 approved — premium MMA structural adhesive for aerospace applications.
To the product →
Permabond TA452 — Premium Industrial
28–32 N/mm² steel — highest industrial strength without aerospace premium.
To the product →
Permabond TA4200 — Standard 1:1
All-round MMA structural adhesive in a 1:1 ratio — industry-standard bonding.
To the product →

Important Notes

Important Notes
Requires Permabond initiator (typically initiator 41 or similar). Store at 2–7 °C.
Storage
Store at 2 to 7 °C (adhesive). Store initiator separately in original packaging. Never mix adhesive and initiator directly — protect adhesive from light exposure.

Which Permabond MMA structural adhesive for which application?

Permabond TA439 in direct comparison with related products of the TA series.

Permabond TA439
Current Product		Permabond TA 4246 →Permabond TA436 →Permabond TA 4200 →
ApplicationMMA structural adhesive 10:1 — All-round applicationBoeing+Airbus approvedNo-mix variant1:1 mixing ratio
Mixing ratio10:1 volume parts10:1—1:1
Handling strength—2–4 min——
Steel shear strength20–25 N/mm²33–35 N/mm²15–25 N/mm²23–25 N/mm²
Peel resistance—150–180 N/25 mm——
Topics & Application Fields
Key terms related to this product. Also useful for our search and filters.
Structurally acrylate ceramic metals no-mix PERMABOND magnets

Technical data for PERMABOND TA439

All 26 product information 5 Performance at final strength 6 Bond properties 3 Properties of the final bond 2 Physical properties 5 Electrical properties 1 Curing values ​​1 Shear strength ISO 4587 in N/mm² 1 Thermal properties 2
Product Information
Brand Permabond
Manufacturer Permabond Engineering Adhesives Ltd
UFI (Unique Formula Identifier) 2SN0-E0GY-V005-RK6J
Container 50 ml
Mixing Ratio 10:1.5
Performance at Full Cure
Steel 20-25 N/mm²
Tensile strength (ISO37) 25-30 N/mm²
Impact strength (ASTM D-950) 15-20 kJ/m²
Coefficient of thermal expansion (ASTM D-696) 80 x 10-6 1/K
Thermal conductivity (ASTM C-177) 0.1 W/(mK)
Volume resistivity (ASTM D-257) 2 x 1013 Ohm.cm
Bonding Properties
Maximum gap filling capacity up to 0.15 mm
Handling strength at 23°C 40-75 seconds
Functional Strength 3-5 minutes
Properties of the permanent bond
Peel resistance (ISO 4578) 85-100 N/25mm
Dielectric constant (ASTM D-150) 4,6
Physical Properties
Chemical group Urethane methacrylate
Color amber yellow
Viscosity at 20 rpm 600-1200
Viscosity (adhesives) Medium viscosity 500 - 5000 mPas
Specific Gravity 1.0
Electrical Properties
Dielectric strength (ASTM D-149) 30-50 kV/mm
Curing values
Final strength 24 hours
Shear strength ISO 4587 in N/mm²
Zinc 12-18 N/mm²
Thermal Properties
Storage Temperature (°C) 2-7
Operating temperature (°C) -55 to 165

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) 3
Permabond TA439 - Technical Data Sheet DE.pdf
404 KB
Permabond TA439 - Technical Data Sheet EN.pdf
392 KB
Permabond TA439 - Fiche Technique FR.pdf
364 KB
Safety Data Sheets (SDS) 3
Permabond TA439 - Safety Data Sheet DE.pdf
363 KB
Permabond TA439 - Safety Data Sheet EN.pdf
341 KB
Permabond TA439 - Fiche de Sécurité FR.pdf
343 KB

Frequently asked questions about Permabond TA439

Practical application and design questions — answered by SILITECH.

MMA structural adhesive 10:1 — cost-effective alternative to TA4246, general industrial bonding.

TA series MMA structural adhesives typically operate using a no-mix process: initiator on one surface, adhesive on the other—upon joining, the initiator activates the adhesive. Mixing ratio: 10:1 by volume. Handling strength after 2–10 minutes, final strength after 24 hours at 23 °C.

MMA structural adhesives (methyl methacrylate) offer higher impact and peel strength than classic 2K epoxies — important for dynamically loaded bonds. The no-mix processing with a separate initiator eliminates the pot life limitation. Cure time is typically faster (minutes instead of hours).

Permabond TA439 bonds reliably: Steel: 20–25 N/mm². Substrate failure is common with polycarbonate and PVC (bond stronger than material).

Permabond TA439 does not have specific aerospace approvals like TA4246 (Boeing/Airbus). For industrial applications without aerospace requirements, the product is approved according to Permabond standards.

Permabond TA439 is a 10:1 MMA structural adhesive — for all-round applications (10:1 volume mix). Permabond TA 4246 is a 10:1 aerospace adhesive — approved for Boeing and Airbus.

From the Permabond MMA range: Permabond TA439 (MMA structural adhesive 10:1 — all-round application); Permabond TA4246 (Aerospace 10:1); Permabond TA436 (Toughened Acrylic); Permabond TA4200 (1:1 standard). For premium aerospace applications, see TA4246 (Boeing and Airbus approved). For maximum industrial strength without the aerospace surcharge, see TA452.

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Product Specifications

Product Information
Brand Permabond
Manufacturer Permabond Engineering Adhesives Ltd
UFI (Unique Formula Identifier) 2SN0-E0GY-V005-RK6J
Container 50 ml
Mixing Ratio 10:1.5
Performance at Full Cure
Steel 20-25 N/mm²
Tensile strength (ISO37) 25-30 N/mm²
Impact strength (ASTM D-950) 15-20 kJ/m²
Coefficient of thermal expansion (ASTM D-696) 80 x 10-6 1/K
Thermal conductivity (ASTM C-177) 0.1 W/(mK)
Volume resistivity (ASTM D-257) 2 x 1013 Ohm.cm
Bonding Properties
Maximum gap filling capacity up to 0.15 mm
Handling strength at 23°C 40-75 seconds
Functional Strength 3-5 minutes
Properties of the permanent bond
Peel resistance (ISO 4578) 85-100 N/25mm
Dielectric constant (ASTM D-150) 4,6
Physical Properties
Chemical group Urethane methacrylate
Color amber yellow
Viscosity at 20 rpm 600-1200
Viscosity (adhesives) Medium viscosity 500 - 5000 mPas
Specific Gravity 1.0
Electrical Properties
Dielectric strength (ASTM D-149) 30-50 kV/mm
Curing values
Final strength 24 hours
Shear strength ISO 4587 in N/mm²
Zinc 12-18 N/mm²
Thermal Properties
Storage Temperature (°C) 2-7
Operating temperature (°C) -55 to 165
Keywords
Keywords
Structurally acrylate ceramic metals no-mix PERMABOND magnets

Documents and data sheets

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