Part no. (SKU/IDH):
229732
IDH Name:
LOCTITE® 426, 20 g Tube
Legacy IDH:
18398
Instant adhesives
Toughened gel
A 1-part, rubber toughened, gel viscosity, black instant adhesive ideal for impact applications.
Part no. (SKU/IDH):
229732
IDH Name:
LOCTITE® 426, 20 g Tube
Legacy IDH:
18398
All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.
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- Description
- Technical specification
- Question & answer
LOCTITE® 426 is a black, gel viscosity, rubber-toughened, instant adhesive with a fixture time of 20 seconds. It has excellent peel, impact and shear strengths. It is suitable for use on metals, elastomers and plastics, especially where large bond gaps are present.
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Toughened, black
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Gel viscosity for maximum gap filling
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Excellent peel, impact and sheer strength
- Product category:
- Instant adhesives
- Color:
- Black
- Cure type:
- Moisture cure
- Number of components:
- 1 part
- Physical form:
- Liquid
- Recommended for use with:
- Metal; Plastic; Rubber
- Product category:
- Instant adhesives
Technologies:
-
Cyanoacrylate
- Color:
- Black
- Cure type:
- Moisture cure
- Number of components:
- 1 part
- Physical form:
- Liquid
- Recommended for use with:
- Metal; Plastic; Rubber
How to use
It is recommended to use the correct LOCTITE® cleaner for the surface to be bonded (such as LOCTITE® SF 7070) to degrease and clean surfaces prior to applying the adhesive.
To improve adhesion on difficult to bond plastic surfaces, apply LOCTITE® SF 770 to the bond area by brushing or dipping. Avoid applying excess primer. Allow the primer to dry.
If cure speed is too slow, use activator LOCTITE® SF 7452 or LOCTITE® SF 7455 (see cure speed vs activator graph in TDS). Apply activator to one bond surface by spray, brush or dipping (not primed surfaces). Allow the activator to dry.
Apply adhesive onto one side/part.
Assemble parts immediately. The parts should be accurately located as the short fixture time leaves little opportunity for adjustment. Bond should be held or clamped until the adhesive has fixtured.Hint: if necessary, excess product can be cured by activator LOCTITE® SF 7452. Spray or drop activator onto excess product.
For precise dispensing of small amounts of adhesive, the use of dispensing needles is recommended.
FAQ
There are several methods to toughen CA adhesives, but the most popular ways are using rubber or anhydride toughening agents. The toughening agents are designed to absorb and distribute impact and stress applied to the adhesive bond line resulting in a tougher bond.
This is called blooming. This often occurs when there is an excessive amount of product being applied. To avoid blooming, use proper ventilation, less product, lower humidity, use a primer/accelerator, or a low bloom product.
Yes, CA’s should be stored in the refrigerator prior to opening, but DO NOT refrigerate them once they have already been opened. After opening, CA's should be used within 30 days for best performance.
This is a result of stress cracking. Uncured liquid CA remaining on some plastic substrate (such as polycarbonate, acrylic, and polysulfone) in a stressed condition may cause the formation of cracks in the plastic. Some remedies for avoiding/minimizing stress cracking are closing the bond joint quickly, use reinforced grades of plastic, anneal parts, or speed the cure of the CA with accelerator (or light for light curing CA products only).
All necessary H&S measures and PPE (personal protection equipment) requirements can be found on the product material safety data sheet, all of which are available via our website.
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Large volume or special order?
{{#distributor.notOnShelf}} {{/distributor.notInStock}}{{#distributor.notInStock}} {{#distributor.onShelf}} {{#distributor.notInStock}} {{/distributor.onShelf}}There was a problem with your request. Please try again or contact us directly.
Every question, request, and challenge is an opportunity for us to help your business perform. And we have all the right people ready to make it happen.
Check our FAQ for quick answers or reach out via phone to our support center. Here, we also offer additional inquiry forms to help you connect with the appropriate Henkel expert.