Instant adhesives
Instant component bonding - clear, toughened adhesive
A clear, toughened, surface-insensitive, low-viscosity instant adhesive ideal for high impact applications. Clear for aesthetic applications.
All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.
- Description
- Technical specification
- Rating & reviews
- Question & answer
LOCTITE® 435 is a clear, toughened, low-viscosity (medical device grade) instant adhesive. It has high resistance to impact and shock loads, high peel strength, and is suitable for bonding plastics, rubber, metals, magnets, porous and absorbent substrates and acidic surfaces. LOCTITE 435 has a fixture time of 30 seconds and is tested to Henkel's ISO 10993 protocols for use in disposable medical devices.
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Toughened, clear medical device adhesive
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Excellent peel, impact and sheer strength
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Well suited to porous and/or acidic surfaces
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ISO-10993 biocompatible
- Product category:
- Instant adhesives
- Technologies:
- Cyanoacrylate
- Application method, Recommended:
- Dispense system,Manual
- Applications, Recommended:
- Bonding close fitting parts
- Color:
- Clear
- Fixture time, Steel:
- 30.0 sec. - 45.0 sec.
- Gap fill:
- 0.15 mm
- Key characteristics, Recommended:
- Flexible,Impact resistant,Surface insensitive,Toughened,Viscosity: low viscosity
- Operating temperature:
- -40.0 °C - 100.0 °C (-40.0 °F - 212.0 °F)
- Shear strength, Mild Steel (grit blasted):
- 18.5 N/mm² (2700.0 psi)
- Viscosity:
- 200.0 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 7063 or 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 appropriate activator LOCTITE® SF 7455 or LOCTITE® SF 7452. Apply activator to one bond surface by spray, brush or dipping (not primed surfaces). Allow the activator to dry.
Apply adhesive to one side or part.Recommended dispensing equipment: for precise dispensing of small amounts of adhesive, use dispensing needles.
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 7455 or LOCTITE® SF 7452. Spray or drop activator onto excess product.
FAQ
LOCTITE® Medical Device Grade Adhesives have been tested to Henkel's ISO-10993 biocompatibility protocols, making them candidates for use in disposable medical devices. They are not intended for implants and (invasive) prostheses.
ISO-10993 Biocompatibility Certificates of Test for LOCTITE® Medical Device Adhesives are available via our Medical Website or by contacting Henkel directly.
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.
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, using reinforced grades of plastic, anneal parts, or speeding the cure of the CA with accelerator (or light for light curing CA 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.
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.
Henkel has several products available with varying levels of NSF® approval, amongst others. Please contact the Henkel sales or technical teams with your requirements.
