ISO QMS Certified
"Our Science ... Your Success"

How to bond carbon fiber

  • Home
  • How to bond carbon fiber

How to bond carbon fiber

How to bond carbon fiber reinforced polymer (also known as CRP or CFRP)?

This is a composite material with extremely high structural strength making it popular for high impact or highly stressed applications.
It is lightweight, and there is a strong requirement for adhesives
for bonding this material as it cannot be welded and mechanical fasteners
not only add to the component weight, rattling and vibration loosening but can affect the structural integrity of the material if it has to be drilled.

CRP Uses

  • Aerospace and defense
  • Automotive – especially high-end and racing
  • Sports equipment – golf clubs, fishing rods
  • Medical prosthetics
  • Bicycle frames and motorcycle parts
  • Wind turbines

Tips for surface preparation:
1. Degrease with Permabond Cleaner A or isopropanol (do not use meths or white spirits as this can leave a residue).
2. Lightly abrade by one of the following methods
-Wet and dry grit paper (carborundum paper) 320 grade recommended.
-Red Scotchbrite pad
3. Degrease again to remove any contamination or loose particles.
It is OK to bond as received but if you wish to have a consistent bonding surface and better mechanical keying of the adhesive then it is recommended to carry out this surface preparation.

What is the best adhesive to bond carbon fiber reinforced polymer?

Several types of adhesives bond well.  Understanding the desired cure process as well as what the bond will need to endure will help us choose the best adhesive for each carbon fiber application.

Cyanoacrylate – also known as instant adhesives, super glue, crazy glue, ca glue, etc. For bonding carbon fiber reinforced polymer consider a black, toughened grade such as  735 low viscosity or 737 medium viscosity.

Single component epoxies – Permabond ES5681 has been developed especially for bonding carbon fiber. Offering high strength structural
performance as well as color matched appearance. Permabond also
offers low viscosity clear ES560 which can be used to encapsulate fibers

Two component epoxies – Permabond ET5428, ET5429 and
MT382, MT3281 have been developed specifically for bonding CRP.

Structural acrylics – MMA grades such as TA4246 are very strong carbon fiber bonders.

Polyurethane adhesives – All Permabond polyurethane adhesives offer high strength, high peel strength, and good impact resistance.

bond Carbon Fiber PT326

With so many choices of adhesives to bond carbon fiber, the desired cure process, the desired environmental resistance, and the desired temperature resistance are key factors in choosing the best adhesive for each application.

Contact Permabond for an adhesive recommendation for your application.

 

 

Contact us for more information

Contact Us

Your information is always kept private

Products

Recent Blogs

21Jul
Permabond MT3836 – Flexible, Fire Retardant and Thermally Conductive Adhesive

Permabond is delighted to announce the introduction of Permabond MT3836 - flexible, fire retardant and thermally conductive adhesive. This two-component hybrid system cures fully at room temperature to form a flexible, thermally conductive m...

Read more
17Jun
Cationic Epoxy/UV Adhesives Cure with UV Light or Heat or Both!

Permabond Europe's new cationic epoxy/uv adhesives cure with UV light or heat or both! Permabond UV7220 (black) and Permabond UV7221 (clear) are epoxy resins that cure when exposed to 365nm UV light, and they can also cure with heat like sta...

Read more
23Mar
Permabond F201 Toughened, flexible, anaerobic sealant

Anaerobic sealants are characteristically very rigid, hard adhesives which work well in compression, torsion and shear but are notoriously brittle and unsuitable in applications where there could be peel or cleavage forces. When bonding dissi...

Read more
03Mar
FDA & EU 10/2011 Compliant Adhesive for Food Contact

PERMABOND® ET5162 is an FDA & EU 10/2011 compliant adhesive. It has been formulated to comply with both FA 175.105 and EU food contact regulations 10/2011. It is a two-part, room temperature curing epoxy adhesive, which combines high pe...

Read more
14Jan
High Temperature Resistant Cyanoacrylate

Permabond introduces new high temperature resistant cyanoacrylate adhesives! PERMABOND® 825 is a low viscosity cyanoacrylate adhesive that provides higher strength at high temperature. This fast-setting cyanoacrylate bonds metals, rubbers, p...

Read more
15Dec
New no odour adhesives for low surface energy plastics

PERMABOND® is delighted to announce the launch of Permabond TA4630 and TA4631, no odour adhesives for low surface energy plastics, especially developed for difficult to bond plastics such as polypropylene, polyethylene and&nb...

Read more
18Jun
Permabond Launches UV639 High Performance Acrylic Bonder

Permabond Launches UV639 High Performance Acrylic Bonder In the world of bonding acrylic (or Perspex®, PLEXIGLASS®, PMMA as it is also known), adhesives used to join this material are often referred to as "acrylic adhesives". This sho...

Read more
28Jun
Permabond Europe Launches TA4207 – No surface preparation!

Permabond Europe Launches TA4207 – A new versatile, high strength adhesive Permabond TA4207 expands our existing range of methyl methacrylate (MMA) adhesives, and is a 2-part, 1:1 mix ratio product, which achieves very high shear strengths...

Read more
12Oct
Permabond adhesives for polyolefins are also great on rubber, PET, PEEK and acetal!

Permabond’s TA46XX adhesive range is well-known and very popular for its ability to bond low surface energy plastics such as polypropylene, polyethylene, and PTFE, but Permabond adhesives for polyolefins are also great on rubber, PET, PEEK...

Read more