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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.

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  • brand
  • Manufacturer
  • UFI (Unique Formula Identifier)
  • Container
  • Chemical group
  • Color
  • Viscosity 20rpm
  • 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 resistance (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 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: 49-439.FL.G050

Internal reference: 49-439.FL.G050

PERMABOND TA439
PERMABOND TA439
Permabond · Permabond Engineering Adhesives Ltd · SKU 49-439.FL.G050

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
mixture
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.
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 to be clean, dry, and free of grease — degrease with Permabond Cleaner A. Lightly sand aluminum and copper to remove oxide layers.
2
Apply the initiator to an adhesive 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 dry – bond life on the surface is 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
assembling components
Fix and join the components immediately, or at the latest within 2 hours of applying the initiator. Apply pressure – the adhesive will spread thinly and evenly.
5
Curing at room temperature
Handling strength is typically achieved after 2–10 minutes, functional strength after 15–30 minutes, and final strength after 24 hours at 23 °C. Exposure to heat accelerates the curing process.
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 preparing the bonding surfaces before applying the MMA structural adhesive.
View product →
Permabond TA4246 — Aerospace star
Boeing HMS 16-1226 + Airbus IP510-04-036-01 approved — Premium MMA structural adhesive for aerospace applications.
View product →
Permabond TA452 — Premium Industrial
28–32 N/mm² steel — highest industrial strength without an aerospace surcharge.
View product →
Permabond TA4200 — Standard 1:1
All-round MMA structural adhesive in a 1:1 ratio — industry standard bonding.
View product →

Important instructions

Important instructions
Requires Permabond initiator (typically initiator 41 or similar). Store at 2–7 °C.
storage
Store adhesive at 2 to 7 °C. Keep initiator separate in its original packaging. Never mix adhesive and initiator directly — protect adhesive from light.

Which Permabond MMA structural adhesive is suitable 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 mixture
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
peeling resistance—150–180 N/25 mm——
Topics & Application Areas
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 final strength
Steel 20-25 N/mm²
Tensile strength (ISO37) 25-30 N/mm²
Impact resistance (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
Properties of the adhesive
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 20rpm 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

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) 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 (methyl methacrylate) structural adhesives offer higher impact and peel strength than conventional two-component epoxies—important for dynamically stressed bonds. The no-mix application with a separate initiator eliminates pot life limitations. Curing 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 final strength
Steel 20-25 N/mm²
Tensile strength (ISO37) 25-30 N/mm²
Impact resistance (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
Properties of the adhesive
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 20rpm 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 datasheets

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