Part no. (SKU/IDH):
135441
IDH Name:
LOCTITE® 408, 20 g Bottle
Legacy IDH:
40840
Instant adhesives
Low-bloom, very low-viscosity adhesive
A 1-part instant adhesive ideal for tight fitting parts thanks to its very low-viscosity. Additionally delivers low-odor and low-bloom for aesthetic applications.
Part no. (SKU/IDH):
135441
IDH Name:
LOCTITE® 408, 20 g Bottle
Legacy IDH:
40840
Size Please make your selection 20 g
All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.
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Large volume or special order?
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- Description
- Technical specification
- Question & answer
LOCTITE® 408 is a low-odor, low-bloom instant adhesive. This very low-viscosity adhesive is ideal for tight fitting parts and applications where odor and/or blooming are a concern. LOCTITE 408 provides for rapid bonding of metals, elastomers and plastics, including difficult-to-bond plastics (PP, PE, PTFE) when used in conjunction with a primer such as LOCTITE® SF 770.
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Low-odor for applications where vapor control is vital
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Low-bloom for cosmetic applications
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Very low viscosity for close-fitting parts
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Bonds plastics, rubbers and metals
- Product category:
- Instant adhesives
Technologies:
-
Cyanoacrylate
- Chemical basis / base:
- Alkoxyethyl
- Color:
- Ultra clear
- Fixture time:
- 5.0 s - 10.0 s
- Gap fill:
- 0.15 mm
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
Low odor/low bloom instant adhesives are significantly higher in molecular weight than traditional instant adhesives. Therefore, they are less prone to become airborne when left open to air and consequently produce little to no blooming, or “frosting” effect on assemblies. They also tend to have lower odor during use.
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.
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.
Henkel has several products available with varying levels of NSF® approval, amongst others. Please contact the Henkel sales or technical teams with your requirements.
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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.