Many of our customers are looking for a strong adhesive that’s known for success in demanding plastic-to-plastic bonding applications such as assembling glass fiber or carbon fiber composite parts, as well as bonding clips and brackets to parts composite parts. One adhesive that we’re quick to recommend is Permabond PT 326.  (Please note: material is not good for oxidizing materials. See TDS.)

This product is a very high performance, 20 minute structural polyurethane adhesive recommended for extremely demanding applications. Permabond’s PT326 is a fully rigid polyurethane adhesive with a 20 minute 1st-stage sure.

Structural polyurethane (PU) adhesives, such as Permabond PT 326, are excellent adhesives for bonding plastic-to-plastic (carbon fiber, glass fiber (GRP) and many conventional plastics).They’re also a very solid choice for many applications that require plastic-to-metal or metal-to-metal bonding.

Additionally, polyurethanes provide strong bonds to substrates like composite, metal, wood, FRP, glass, and plastic. This type of adhesive from Permabond offers a long working life and are often used in the automobile industry. The PT326 can also cure easily at room temperature and resist the effects of constant impact and vibration. The fact that it endures when there is, indeed, a whole lot fo “shakin goin on” is why it’s consistently a popular choice in automobile applications. But its benefits don’t stop there.

Additional Features and Benefits

• Adhesion to a wide variety of substrates.
• Cures at room temperature.
• Easy 1:1 mix ratio by volume.
• Good resistance to impact and vibration.
• Thixotropic, non-slump rheology.
• Excellent environmental and chemical resistance.

Permabond PT326 can withstand higher temperatures  (up to 150 degrees C) for brief periods providing the joint is not unduly stressed. The minimum temperature the cured adhesive can be exposed to is
-40°C (-40°F) depending on the materials being bonded.

Here’s a quick rundown of how to use PT326.

1. Surfaces must be clean, dry and grease-free prior to bonding. Be sure to use an appropriate cleaner for degreasing.  Some metals such as aluminum, copper and its alloys will benefit from light abrasion.
2. Shake cartridge (or stir bulk material) before use if separation has occurred.
3. Apply a thin bead of adhesive pre-mixed through a static mixer nozzle. (Alternatively bulk material can be dispensed via metered dispensing equipment).
4. Assemble components and clamp.
5. Maintain pressure until handling strength is achieved.
6. Allow 4-5 days for adhesive to fully cure. Accelerated cure times may be achieved by heating.

Permabond has also produced a brief YouTube video on how to use this project. Watch the video here.

Chemical Concepts offers this product in sizes that can accomplish your various job needs. Order it either the 50 ml twin tube pack, or in the large 400 ml trade size twin tube.

As you might know, Chemical Concepts is a preferred distributor for Permabond. The PT 326 adhesive is just one of many Permabond products that we proudly carry – check the entire list here.

Our customers have long trusted the reliability and strength of Permabond products. Are you interested in hearing more? Contact our sales team today. Call toll-free at 800-220-1966 or simply contact us online.