Instant adhesives
Instant component bonding - rubber bonding
A low-viscosity instant adhesive designed for rubber (elastomeric) materials and plastics where very fast-fixturing is required. Ideal for O-ring assembly.
All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.
Size Please make your selection 0.33 oz
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- Description
- Technical specification
- Ratings & reviews
- Question & answer
LOCTITE® 404 is a transparent, colorless to straw colored, low-viscosity instant adhesive (industrial grade) designed for bonding plastics and elastomeric materials. It allows for very fast-fixturing for ease of assembly and handling: especially suited for quick repairs. It has been qualified to Commercial Item Description A-A-3097 (Note: this is a regional approval).
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Ideal for O-ring assembly
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Designed for bonding of rubber (elastomeric) materials and plastics
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Ideal for quick repairs
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Qualified to Commercial Item Description A-A-3097 (This is a regional approval)
- Product category:
- Instant adhesives
Technologies:
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Cyanoacrylate
- Agency approvals / certificates / specifications:
- Commercial item std. A-A-3097
- Application method:
- Manual
- Applications:
- Bonding plastic,Bonding rubber
- Color:
- Clear
- Cure type:
- Moisture cure
- Fixture time, Steel:
- 20.0 sec.
- Gap fill:
- 0.15 mm
- Key characteristics:
- Viscosity: low viscosity,fixture: very fast fixture
- Operating temperature:
- -40.0 °F - 180.0 °F (-40.0 °C - 80.0 °C)
- Physical form:
- Liquid
- Recommended for use with:
- Elastomer,Plastic,Rubber
- Shear strength, Mild Steel (grit blasted):
- 3500.0 psi (24.0 N/mm²)
- Specific gravity, @ 25.0 °C:
- 1.09
- Viscosity:
- 90.0 mPa·s (cP)
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 (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
LOCTITE® 404 (also included in the LOCTITE® O-ring Splicing Kit - IDH 228171) is an easy to use solution for creating o-rings in less than a minute. It is ideal as a supplement to existing o-ring inventory to eliminate out of stock situations, or as a handy field repair kit.
This is a result of stress cracking. Leaving uncured liquid CA remaining on some plastic substrates (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, using reinforced grades of plastic, anneal parts, or speed the cure of the adhesive with accelerator or light (for light cure products only).
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, instant adhesives should be stored in the refrigerator prior to opening, but DO NOT refrigerate them once they have already been opened. After opening, the product 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.
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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. You will receive an email notification when product is back in stock.You will not receive an email notification when product is back in stock.
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